Each handmade Jewel is different, with its own identity, character or delicacy. Each will bring you different emotions, take you to different places, or make you dream…
Fine jewellery
FINE JEWELLERY
Exclusive collections
CARLOS JORGE LENCZEWSKI MARTINS
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About MARTIN
My passion for art has always been present.
The interest in jewellery has been a process of many years - starting by admiring the colours of precious stones, I then focused my attention to details and finally the design.
Managing the colours, design and delicacy of a jewel, I try to bring something beautiful.
I invite you to explore this world of jewellery craftsmanship, with me.
OK
Jewellery Care
The Process
MENU
CONTACT
PT
EN
Hallmarks
Cookies Policy
PL
MAISON & ART
FAQ
THE KNOW-HOW
The Diamond
Legal
THE DIAMOND
CERTIFICATION
KNOW-HOW
HALLMARKS
THE
JEWELLERY CARE
All products are handmade and therefore need to be previously ordered; colors in actual products may slightly differ from the presented pictures
SECTION A - INTELLECTUAL PROPERTY RIGHTS
1. MARTIN has created this website for educational purposes with information about its the house (maison), jewellery and related events for personal use only.
2. any of the material in the website may not be used for other purposes than non-commercial, educational, private or domestic - this implies not changing, modifying or removing any of the materials trademarks or other elements;
3. all the materials included in the website or applications, including images, photographs, illustrations, texts, written material are copyrighted and protected under the treaty provisions and national copyright laws worldwide.
4. users are not authorised to sell, reproduce, modify, display, publicly present, or use any of second-hand works of the materials based or owned by MARTIN in any way other than private usage - i.e. public and commercial purpose.
5. users may not use the materials from this website or other owned by MARTIN in other websites, in network computer environments or other digital support for any purpose. in the event of breach of any of this policy, user(s) understand that these acts are considered an infringement of copyright laws, trademark laws, privacy laws, and other applicable laws;
6. Any communication or material that users transmit to MARTIN through the Website or by electronic mail or otherwise, excluding personally identifiable data about yourself, including, but not limited to, any data, questions or answers, comments, suggestions, or the like will be treated as non-confidential and non-proprietary by MARTIN. By sending communications to MARTIN, you automatically grant MARTIN a royalty-free, perpetual, irrevocable non-exclusive license to use, reproduce, modify, publish, edit, translate, distribute, perform, and display such communication(s) alone, or as a part of other works in any form, media, or technology whether now known of hereafter developed and to sublicense such rights to anyone. Anything you transmit may be used by MARTIN and its affiliated companies for any purpose, including but not limited to reproduction, disclosure, transmission, publication, broadcast and posting, or developing, manufacturing and marketing products using such information.
7.MARTIN possesses its own sources of creativity, in particular highly skilled designer(s) who conceive and perfect MARTIN'S creations. As a result, MARTIN cannot agree to or accept being the receiver of unsolicited proposals of collaboration. Indeed, it is conceivable that MARTIN may already be working on similar ideas. Consequently, you are advised that MARTIN is not interested in receiving ideas or other proposals that users or other entities may wish to submit.
8.All trademarks, logos and service marks (collectively the "Trademarks") which appear on this Website are registered and unregistered MARTIN trademarks or are licensed for use by MARTIN by third parties. Other trademarks are proprietary marks and are registered to their respective owners. Nothing contained on the Website should be construed as granting, by implication or otherwise, any license or right to use any trademark displayed on this Website without the written permission of MARTIN or such third party who owns the trademark. Misuse of any trademark displayed on the Website, or any other content on the Website, except as provided herein, is strictly prohibited.
9.users may link to MARTIN home page, provided doing so in a way that is fair and legal and does not damage MARTIN reputation or take advantage of it, but users must not establish a link in such a way as to suggest any form of association, approval or endorsement on MARTIN'S part where none exists. Additionally, user may only link to websites owned by them.
10.Where the Website contains links to other sites and resources provided by third parties, these links are provided for users information only and do not imply endorsement by MARTIN of those sites. MARTIN has no control over the contents of those sites or resources, and accept no responsibility for them or for any loss or damage that may arise from users use of them.
10. The applicable laws are those of Poland.
SECTION B - PRIVACY POLICY
1. This website is owned by MARTIN - Carlos Jorge Lenczewski Martins, operating in Poland (MARTIN);
2. Types of information:
2.1. Personal information - title, name, surname, gender, age, date of birth, address(es), country, e-mail address(es), or other that may be used for identification of the user;
2.2. Personal preference information - jewellery pieces observed in the website, or other information regarding preferences of the user related with jewellery;
2.3. Credit Card information - this would be information related with credit card number, expiry date, CCV code, credit card company, bank information, cardholder;
2.4. internet information - these are information that may be processed when accessing the website, like page views, traffic data, other communication data, preferred language, preferences, IP address, operating system, browser type, or other information wether necessary or not by MARTIN for the website usage.
2.5. other information - may be information related with the usage of MARTIN's services, any surveys that may be sent to the user, or other business information;
3. This website and MARTIN do not gather any personal information and credit card information without the knowledge of the user. Currently, MARTIN does not request credit card information in any way;
4. the website may collect automatically Internet information which does not need to be processed by MARTIN directly but may be necessary for the proper function of the website.
5. MARTIN once contacted by the user may collect personal information for future usage, correspondence or other uses;
6. any personal or credit card information is stored in Poland and local law applies.
7. disclosure of information:
7.1 MARTIN may disclose information to legal authorities, if and when requested by them;
7.2. MARTIN may also disclose information to related entities, if case of buying or selling assets, or with business relations;
7.3. MARTIN may disclose user's information in order to comply with legal obligations as for example fraud protection, and others;
8. Users rights
8.1 Privacy policy is regulated by the Polish Law;
8.2. the user may request to remove personal, personal preference or credit card information, which MARTIN will remove within 14 days after receiving the request;
SECTION C - WEBSITE USAGE
1. this policy regulates the usage of www.martingems.com website or related applications issued by MARTIN;
2. This website is owned by MARTIN - Carlos Jorge Lenczewski Martins, operating in Poland (MARTIN);
3. the website is intended to be used by users over 18 years old (although any of the content does not include explicit material) which:
3.1. may not use for unlawful purposes, fraud, terrorism, etc;
3.2. may not use for purposes that can be offensive, defamatory, harmful to MARTIN, its users or other parties - examples of which could be overriding the website content with other content;
3.3. may not be used for purposes of promoting discrimination, privacy policies, or others;
3.4 may not be used to promote personal or business activities other than of MARTIN;
4. License to access the website is temporary and MARTIN may reserve the right to suspend, remove, or update the website and its services;
5. MARTIN may restrict access to certain areas of the website or its services either with or without a password that the user may be requested to provide;
6. SUBJECT TO THE EXPRESS TERMS SET OUT IN THESE TERMS OF USE AND TO THE MAXIMUM EXTENT PERMITTED BY APPLICABLE LAW, WE HEREBY DISCLAIM ALL OTHER WARRANTIES, TERMS AND CONDITIONS, EITHER EXPRESS, IMPLIED OR STATUTORY IN RELATION TO THE WEBSITE. MARTIN AND ITS SUPPLIERS MAKE NO WARRANTIES ABOUT ANY MATERIALS, CONTENT, SOFTWARE, TEXT, DOWNLOADS, GRAPHICS, AND LINKS, OR ABOUT RESULTS TO BE OBTAINED FROM USING THE WEBSITE.
7. the website is provided 'as is' and:
7.1. may not be free of bugs, errors or other malfunction - the presence of which, do not in any way breach this policy;
7.2. may not clear the responsibility of the user for their hardware, its content, data uploaded to the website, or similar responsibilities;
7.3.MARTIN must not be hold responsible for third-party unlawful access to users information, account, hardware control, which is not in control of MARTIN or does not lie in its responsibilities;
CUT
One of the most precious elements on earth, the diamond has been for a long time used to make the most remarkable pieces of jewellery, not only because of its rarity but, also because of its characteristics such as optical properties and durability.
In order to present the best quality of this art, diamonds with weight equal or over 0.3 cts come with international gemological associations (like GIA) certificates. Independently of that, every piece of jewellery comes with MARTIN certification.
Since MARTIN aims to make the most emotional and sparkling pieces of jewellery, in order the achieve that, diamonds used to create beautiful works of art are greater than or equal to colour “G” and at least “VS” in clarity.
DIAMOND
CLARITY
COLOUR
Very Light
Yellow
N O P Q R
Near
Colourless
G H I J
When mentioning the colour of diamonds with the highest quality, it actually refers to how colourless they are. The more colourless they are the highest quality they represent.
MARTIN
Light
Yellow
S T U V W X Y Z
Faint
Yellow
K L M
Colourless
D E F
VS1 - VS2
FL - IF
I1, I2, I3
SI1, SI2, SI3
Very Slightly
Included
Included
Slightly
Included
VVS1 - VVS2
Flawless,
Internally Flawless
Due to the different elements of the natural process of forming a diamond, such as pressure and heat, the diamond may have, or not, many different types of inclusions. The clarity of a diamond refers to how clear a diamond is of inclusions.
Very, Very
Slightly Included
RADIANT
MARQUISE
CUT
ROUND
OVAL
ASCHER
PRINCESS
PEAR
EMERALD
The cut refers to the facets and proportions of the diamond. Although diamonds are available in many different shapes (shown below), every single one of them have specific proportions that allow the diamond to sparkle the most.
Jewellery are VERY delicate elements and should be treated with special care.
Wearing and storing tips:
- General tips for jewellery care : Last on, First out - meaning that it should be the last thing to put on and the first to take off - Gemstones are extremely sensitive, especially pearls, to any kind of chemicals - from alcohol, acetone, chlorine to hairspray and perfume or even lotions);
- Always store your jewellery separately - some gemstones are very hard and can easily scratch metal or other gemstones;
- Never use jewellery with gemstones while doing housework, sports, bathing, swimming or other activities - even diamonds. although they are very resistant, a blow in the right spot may chip the diamond.
- Avoid using ultrasonic cleaners since many stones may crack
- Heat and sunlight - many gemstones may fade, discolor or crack due to heat. Some of them are: Amethysts, Opal, Turquoise, Emeralds.
Take special care when traveling - jewellery should be kept in special traveling pouches in order to avoid movement and scratches, or other damage.
Some gemstones and pearls are especially delicate and therefore need special attention:
PearlsPearls are organic and soft therefore, very delicate. Pearls should always be kept separately. Rings and bracelets should be worn only on special occasions and not on a daily basis.
Pearls are extremely sensitive to chemicals so, they may not come into contact with chemicals or be cleaned with chemical products.
Try not to keep them in very dry places for longer periods since they may become dry and have small fractures on the surface.
EmeraldsEmeralds are very sensible to temperature changes. When washing hands you should always take rings with emeralds off. In very cold countries, it is recommended to wear emerald jewellery at destination and avoid sudden temperature changes (eg. going from home/car to the outside). Avoid direct exposure to the sunlight for long periods as it will fade and discolor the gemstone.
Never clean emeralds with strong detergents or general jewellery cleaners. To bring the brightness of an emerald one may use natural almond oil or sandalwood oil, applying only very small quantities at once.
JEWELLERY
CARE
MAISON’S HALLMARKS
925
Gold 18ct (750/1000)
HALLMARKS
750
Hallmarks are marks made on the jewellery confirming their qualities according to legal standards. There are two types of jewellery authentication: the jeweller's hallmark and the country of origin hallmark. Jewellers hallmark has the function of identifying the jeweller (or the house) — it may be treated as the signature of the jeweller, and must be previously registered in the country's Assay Office. The country's hallmarks are marks identifying not only the origin of the jewellery but also the kind and purity of the precious metal used. They are mandatory for most of the countries and in Poland, restricted to the Regional Assay Office controlling the country's standards. Hallmarks used in Martin's pieces of jewellery are shown here.
Eventually jewellery pieces may include
POLISH HALLMARKS USED BY MARTIN
Silver 925
See the steps of making a jewel...
My passion for art has always been present.
The interest in jewellery has been a process of many years - starting by admiring the colours of precious stones, I then focused my attention to details and finally the design.
Managing the colours, design and delicacy of a jewel, I try to bring something beautiful.
I invite you to explore this world of jewellery craftsmanship, with me.
CARLOS JORGE
LENCZEWSKI MARTINS
Discover
THE ART OF
MARTIN inspired by dreams, nature, motion and emotion, movement and everything that surrounds us, creates jewels with the highest quality - completely handmade.I invite you to the magical world of the luxurious Fine Jewellery…
MARTIN inspired by dreams, nature, motion and emotion, movement and everything that surrounds us, creates jewels with the highest quality - completely handmade. I invite you to the magical world of the luxurious Fine Jewellery…
MARTIN inspired by dreams, nature, motion and emotion, movement and everything that surrounds us, creates jewels with the highest quality - completely handmade.
I invite you to the magical world of the luxurious Fine Jewellery…
Martingems webpages use cookie files, in order to facilitate the use of this webpage. If You do not wish for cookie files to be stored on your computer please change your browser's settings. Please undestand that changing these setting may affect the performance of
MARTIN website. By continuing you understand and accept the cookies policy available on the bottom of this page.
OK
Each handmade Jewel is different, with its own identity, character or delicacy. Each will bring you different emotions, take you to different places, or make you dream…
Each handmade Jewel is different, with its own identity, character or delicacy. Each will bring you different emotions, take you to different places, or make you dream…
One of the most precious elements on earth, the diamond has been for a long time used to make the most remarkable pieces of jewellery, not only because of its rarity but, also because of its characteristics such as optical properties and durability.
In order to present the best quality of this art, diamonds with weight equal or over 0.3 cts come with international gemological associations (like GIA) certificates. Independently of that, every piece of jewellery comes with MARTIN certification.
Since MARTIN aims to make the most emotional and sparkling pieces of jewellery, in order the achieve that, diamonds used to create beautiful works of art are greater than or equal to colour “G” and at least “VS” in clarity.
When mentioning the colour of diamonds with the highest quality, it actually refers to how colourless they are. The more colourless they are the highest quality they represent.
Due to the different elements of the natural process of forming a diamond, such as pressure and heat, the diamond may have, or not, many different types of inclusions. The clarity of a diamond refers to how clear a diamond is of inclusions.
The cut refers to the facets and proportions of the diamond. Although diamonds are available in many different shapes (shown below), every single one of them have specific proportions that allow the diamond to sparkle the most.
ASCHER
The cut refers to the facets and proportions of the diamond. Although diamonds are available in many different shapes (shown below), every single one of them have specific proportions that allow the diamond to sparkle the most.
Hallmarks are marks made on the jewellery confirming their qualities according to legal standards. There are two types of jewellery authentication: the jeweller's hallmark and the country of origin hallmark. Jewellers hallmark has the function of identifying the jeweller (or the house) — it may be treated as the signature of the jeweller, and must be previously registered in the country's Assay Office. The country's hallmarks are marks identifying not only the origin of the jewellery but also the kind and purity of the precious metal used. They are mandatory for most of the countries and in Poland, restricted to the Regional Assay Office controlling the country's standards.
Hallmarks are marks made on the jewellery confirming their qualities according to legal standards. There are two types of jewellery authentication: the jeweller's hallmark and the country of origin hallmark. Jewellers hallmark has the function of identifying the jeweller (or the house) — it may be treated as the signature of the jeweller, and must be previously registered in the country's Assay Office. The country's hallmarks are marks identifying not only the origin of the jewellery but also the kind and purity of the precious metal used. They are mandatory for most of the countries and in Poland, restricted to the Regional Assay Office controlling the country's standards. Hallmarks used in Martin's pieces of jewellery are shown here.
Jewellery are VERY delicate elements and should be treated with special care.
Wearing and storing tips:
- General tips for jewellery care : Last on, First out - meaning that it should be the last thing to put on and the first to take off - Gemstones are extremely sensitive, especially pearls, to any kind of chemicals - from alcohol, acetone, chlorine to hairspray and perfume or even lotions);
- Always store your jewellery separately - some gemstones are very hard and can easily scratch metal or other gemstones;
- Never use jewellery with gemstones while doing housework, sports, bathing, swimming or other activities - even diamonds. although they are very resistant, a blow in the right spot may chip the diamond.
- Avoid using ultrasonic cleaners since many stones may crack
- Heat and sunlight - many gemstones may fade, discolor or crack due to heat. Some of them are: Amethysts, Opal, Turquoise, Emeralds.
Take special care when traveling - jewellery should be kept in special traveling pouches in order to avoid movement and scratches, or other damage.
Some gemstones and pearls are especially delicate and therefore need special attention:
PearlsPearls are organic and soft therefore, very delicate. Pearls should always be kept separately. Rings and bracelets should be worn only on special occasions and not on a daily basis.
Pearls are extremely sensitive to chemicals so, they may not come into contact with chemicals or be cleaned with chemical products.
Try not to keep them in very dry places for longer periods since they may become dry and have small fractures on the surface.
EmeraldsEmeralds are very sensible to temperature changes. When washing hands you should always take rings with emeralds off. In very cold countries, it is recommended to wear emerald jewellery at destination and avoid sudden temperature changes (eg. going from home/car to the outside). Avoid direct exposure to the sunlight for long periods as it will fade and discolor the gemstone.
Never clean emeralds with strong detergents or general jewellery cleaners. To bring the brightness of an emerald one may use natural almond oil or sandalwood oil, applying only very small quantities at once.
MARTIN uses mainly functionality cookies, which are stored in your browser.
MARTIN uses cookies that are strictly necessary to enable you to move around the site or to provide certain basic features.
MARTIN uses cookies to help to improve the performance of the website to provide you with a better user experience.
MARTIN uses cookies to enhance the functionality of the website by storing your preferences, for example selected language.
MARTIN doesn’t sell the information collected by cookies, nor do we disclose the information to third parties, except where required by law (for example to government bodies and law enforcement agencies).
Q: What is jewellery?
A: Jewellery is the art of working with metals and stones. These can go from copper, steel to silver and gold or platinum. Usually the more expensive the metal, the best quality stones are used. These elements, along with superb design is what haute joaillerie (High-end jewellery) is.
Q: Are diamonds, sapphires, emeralds and rubies the only precious stones?
A: No, that is an idea that has been wrongly used along the time.You will see that in the jewellery world professionals and artisans rarely use the term "precious stones" but rather "gemstones". There are countless types of stones with different qualities and not only the so-called "precious stones" (e.g. diamonds, sapphires, emeralds or rubies) are valuable — even when speaking from a monetary point of view. In haute-joaillerie what counts is the "character" of the stone — i.e. the sparkle and the emotion that a stone may bring to a person, and of course they may be rare what affects the price of that gemstone. But the beautiful character of a stone may be seen for example in an aquamarine, topaz (which can be very expensive) or some other stone.
Q: Brilliants or diamonds?
A: It actually refers to the name of the same stone - Brilliant is a specific type of diamond cut belonging to the round cut. The play of light (reflection) in this cut makes it the most popular type of diamond sold
Q: What is the difference between gemstone carat and gold carat?
A: That's an interesting question. With gemstones carat is the weight, being 1 carat = 0.2gr (5 carats = 1 gr). This corresponds to different sizes of gemstones since each has a different density. When talking about gold, this is a metal that in jewellery is not used in a completely pure form but, rather as an alloy with another metal. The amount and type of the other metal depends on the hardness and color one wants to acheive. Pure gold would be too soft to be used in jewellery. So, carat id the amount of gold in the alloy - the maximum amount is always 24k what corresponds to 99.9% of gold. 18 carats means that the alloy contains 75% (18/24) of gold and 25% (6/24) of another metal. 12k would mean that there is only 50% (12/24) of gold in the alloy. In jewellery, the maximum amount of gold used is usually 18k due to technical constraints. The minimum amount of gold depends from each country - in the US it is 10k, in the UK 9k and in Poland 8k
Q: Earlier you mentioned different types of jewellery, eg. high end jewellery — how can one differentiate them?
A: (smile) well it's quite simple actually — if you see a piece of jewellery that is breathtaking then it is haute joaillerie. Haute joaillerie also uses the best metals and stones — standard 18k gold or platinum.
Q: What is jewellery?
A: Jewellery is the art of working with metals and stones. These can go from copper, steel to silver and gold or platinum. Usually the more expensive the metal, the best quality stones are used. These elements, along with superb design is what haute joaillerie (High-end jewellery) is.
Q: Are diamonds, sapphires, emeralds and rubies the only precious stones?
A: No, that is an idea that has been wrongly used along the time.You will see that in the jewellery world professionals and artisans rarely use the term "precious stones" but rather "gemstones". There are countless types of stones with different qualities and not only the so-called "precious stones" (e.g. diamonds, sapphires, emeralds or rubies) are valuable — even when speaking from a monetary point of view. In haute-joaillerie what counts is the "character" of the stone — i.e. the sparkle and the emotion that a stone may bring to a person, and of course they may be rare what affects the price of that gemstone. But the beautiful character of a stone may be seen for example in an aquamarine, topaz (which can be very expensive) or some other stone.
Q: Brilliants or diamonds?
A: It actually refers to the name of the same stone - Brilliant is a specific type of diamond cut belonging to the round cut. The play of light (reflection) in this cut makes it the most popular type of diamond sold
Q: What is the difference between gemstone carat and gold carat?
A: That's an interesting question. With gemstones carat is the weight, being 1 carat = 0.2gr (5 carats = 1 gr). This corresponds to different sizes of gemstones since each has a different density. When talking about gold, this is a metal that in jewellery is not used in a completely pure form but, rather as an alloy with another metal. The amount and type of the other metal depends on the hardness and color one wants to acheive. Pure gold would be too soft to be used in jewellery. So, carat id the amount of gold in the alloy - the maximum amount is always 24k what corresponds to 99.9% of gold. 18 carats means that the alloy contains 75% (18/24) of gold and 25% (6/24) of another metal. 12k would mean that there is only 50% (12/24) of gold in the alloy. In jewellery, the maximum amount of gold used is usually 18k due to technical constraints. The minimum amount of gold depends from each country - in the US it is 10k, in the UK 9k and in Poland 8k
Q: Earlier you mentioned different types of jewellery, eg. high end jewellery — how can one differentiate them?
A: (smile) well it's quite simple actually — if you see a piece of jewellery that is breathtaking then it is haute joaillerie. Haute joaillerie also uses the best metals and stones — standard 18k gold or platinum.
Q: What is jewellery?
A: Jewellery is the art of working with metals and stones. These can go from copper, steel to silver and gold or platinum. Usually the more expensive the metal, the best quality stones are used. These elements, along with superb design is what haute joaillerie (High-end jewellery) is.
Q: Are diamonds, sapphires, emeralds and rubies the only precious stones?
A: No, that is an idea that has been wrongly used along the time.You will see that in the jewellery world professionals and artisans rarely use the term "precious stones" but rather "gemstones". There are countless types of stones with different qualities and not only the so-called "precious stones" (e.g. diamonds, sapphires, emeralds or rubies) are valuable — even when speaking from a monetary point of view. In haute-joaillerie what counts is the "character" of the stone — i.e. the sparkle and the emotion that a stone may bring to a person, and of course they may be rare what affects the price of that gemstone. But the beautiful character of a stone may be seen for example in an aquamarine, topaz (which can be very expensive) or some other stone.
Q: Brilliants or diamonds?
A: It actually refers to the name of the same stone - Brilliant is a specific type of diamond cut belonging to the round cut. The play of light (reflection) in this cut makes it the most popular type of diamond sold
Q: What is the difference between gemstone carat and gold carat?
A: That's an interesting question. With gemstones carat is the weight, being 1 carat = 0.2gr (5 carats = 1 gr). This corresponds to different sizes of gemstones since each has a different density. When talking about gold, this is a metal that in jewellery is not used in a completely pure form but, rather as an alloy with another metal. The amount and type of the other metal depends on the hardness and color one wants to acheive. Pure gold would be too soft to be used in jewellery. So, carat id the amount of gold in the alloy - the maximum amount is always 24k what corresponds to 99.9% of gold. 18 carats means that the alloy contains 75% (18/24) of gold and 25% (6/24) of another metal. 12k would mean that there is only 50% (12/24) of gold in the alloy. In jewellery, the maximum amount of gold used is usually 18k due to technical constraints. The minimum amount of gold depends from each country - in the US it is 10k, in the UK 9k and in Poland 8k
Q: Earlier you mentioned different types of jewellery, eg. high end jewellery — how can one differentiate them?
A: (smile) well it's quite simple actually — if you see a piece of jewellery that is breathtaking then it is haute joaillerie. Haute joaillerie also uses the best metals and stones — standard 18k gold or platinum.