Learn the latest on Madagascar sapphires and demantoid garnets from Wim Vertriest, GIA Manager of Field Gemology.
Featured Gems
IDG Laboratory
Ruby
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Ruby is one of the most valuable and distinguished gemstones in the world, known for its vibrant and varied colors and excellent hardness. It belongs to the corundum family, which also includes sapphire.
Types of Ruby →
Types of Ruby
Natural Ruby
Extracted directly from the earth.
Treated Ruby
Enhanced for color and clarity through heat or radiation treatments
Synthetic Ruby
Manufactured in a laboratory under conditions that mimic natural formation.
Physical Properties
Origin and Formation
Geological Formation: Rubies form in igneous and metamorphic rocks such as pegmatite, schist, and marble.
Famous Mining Locations: Myanmar (formerly Burma), Thailand, Sri Lanka, Madagascar, Afghanistan, Cambodia, and Kenya.
Uses of Ruby
Jewelry: Commonly used in wedding and engagement rings, earrings, necklaces, and bracelets.
Industry: Used in some industrial applications such as watch components, high-strength windows, and laser tools due to its hardness.
Care and Maintenance
Cleaning: It is recommended to clean rubies regularly using warm water, soap, and a soft brush.
Storage: Rubies should be stored separately from other gemstones to avoid scratches.
Grading and Value
Legends and History
Legends
Rubies are believed to possess protective powers and bring luck and happiness. They have been considered symbols of love and passion.
History
Rubies have been used by kings and nobles throughout history as symbols of power and wealth.
Emerald
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Emerald is one of the rarest and most valuable gemstones in the world, known for its rich, vibrant green color. It belongs to the beryl family, which also includes aquamarine and morganite.
Types of Emerald →
Types of Ruby
Natural Emerald
Extracted directly from the earth and considered the most valuable.
Treated Emerald
Enhanced in color and clarity through oil or resin treatments.
Synthetic Emerald
Manufactured in a laboratory under conditions that mimic natural formation
Physical Properties
Origin and Formation
Geological Formation: Emeralds form in igneous and metamorphic rocks such as schist and marble.
Famous Mining Locations: Colombia (the most renowned), Brazil, Zambia, Zimbabwe, Afghanistan, and Russia.
Uses of Emerald
Jewelry: Commonly used in engagement and wedding rings, earrings, necklaces, and bracelets. It is a symbol of love, beauty, and prosperity.
Collectibles: Often kept as an investment or as part of precious gemstone collections.
Care and Maintenance
Cleaning: It is recommended to clean emeralds regularly with warm water, soap, and a soft brush. Harsh chemicals should be avoided as they may erode the stone.
Storage: Store emeralds separately from other gemstones to avoid scratches. It’s best to place them in a cloth-lined box
Factors Determining
Emerald Value
Legends and History
Legends
Emeralds were believed to have healing powers and the ability to enhance foresight. In ancient times, they were thought to calm the soul and promote intelligence and wisdom.
History
Emeralds have been used in royal jewelry and ancient treasures. They were a favorite of Queen Cleopatra, who owned her own emerald mines in ancient Egypt.
Sapphire
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Sapphire, also known as the blue sapphire, is one of the most prominent gemstones in the world, renowned for its rich blue color. It belongs to the corundum family, the same family that includes ruby.
Types of Sapphire →
Types of Ruby
Natural Sapphire
Extracted directly from the earth and considered the most valuable.
Treated Sapphire
Enhanced through heat treatment to improve its color and clarity.
Synthetic Sapphire
Manufactured in a laboratory under conditions that mimic natural formation.
Physical Properties
Origin and Formation
Geological Formation: Sapphire forms in igneous and metamorphic rocks such as pegmatite and schist
Famous Mining Locations: Include Sri Lanka, Myanmar (Burma), Kashmir (India), Madagascar, Australia, and Thailand.
Uses of Sapphire
Jewelry: Commonly used in wedding and engagement rings, earrings, necklaces, and bracelets. It is considered a symbol of honesty and loyalty
Industry: Used in some industrial applications such as watch components and laser instruments due to its hardness.
Care and Maintenance
Cleaning: It is recommended to clean sapphires regularly with warm water, soap, and a soft brush. Harsh chemicals should be avoided.
Storage: Sapphires should be stored separately from other gemstones to avoid scratches. It is best to place them in a cloth-lined box.
Factors Determining
Sapphire Value
Legends and History
Legends
Sapphire was believed to protect against envy and harm and to bring wisdom and honesty. It was considered the stone of wisdom and the ability to learn.
History
Sapphires have been used in royal and religious jewelry throughout history, symbolizing purity and sanctity.
Diamond
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Diamond is a carbon-based material that crystallizes in a cubic system and is considered the hardest known natural substance. It is highly valued for its beauty, rarity, and unique properties, making it one of the most renowned and valuable gemstones.
Types of Diamonds →
Types of Ruby
Natural Diamonds
Extracted from the Earth's crust, they are the most valuable.
Colored Diamonds
Contain impurities or chemical compositions that result in various colors, making them rare and highly valuable.
Synthetic Diamonds
Produced in laboratories using methods that mimic natural conditions, often used in industrial applications.
Physical Properties
Origin and Formation
Geological Formation: Diamonds form deep within the Earth under extreme pressure and heat, and are brought to the surface by volcanic eruptions forming kimberlite and lamproite rocks
Famous Mining Locations: South Africa, Russia, Botswana, Congo, Canada, Australia, and Brazil.
Uses of Diamonds
Jewelry: Commonly used in engagement and wedding rings, earrings, necklaces, and bracelets. Diamonds are symbols of eternity and purity.
Industry: Used in cutting tools, drills, and polishing due to their extreme hardness.
Care and Maintenance
Cleaning: It is recommended to clean diamonds regularly using warm water, soap, and a soft brush. Special diamond cleaning solutions can also be used.
Storage: Store separately from other gemstones to avoid scratches. Preferably in a cloth-lined box.
The Four Cs of
Diamond Quality
Legends and History
Myths
Diamonds were once believed to possess magical powers, granting courage and protection. They are seen as symbols of strength and resilience.
History
Diamonds have been used for thousands of years in jewelry and royal ornaments, symbolizing wealth and power.
Variety
Royal Edition
High Diamond
Just For A Queens
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IDG is a leading laboratory specializing in the testing and evaluation of gemstones and diamonds. We take pride in our extensive expertise and commitment to delivering the highest levels of quality and transparency in every service we provide.
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Welcome to IDG
International Diamond & Gemstone Laboratory
IDG is a leading laboratory specializing in the testing and evaluation of gemstones and diamonds. We take pride in our extensive expertise and commitment to delivering the highest levels of quality and transparency in every service we provide.
Our Vision
The IDG Laboratory Vision
We strive to be the first and most trusted destination for gemstone and diamond evaluation. Our vision is to provide professional services that exceed our clients' expectations, relying on international standards and the latest technologies in the field.
Our Mission
The IDG Laboratory Mission
Our mission is to provide accurate and transparent evaluation reports that build trust between buyers and sellers in the gemstone and diamond market. We are committed to excellence at every step to ensure the satisfaction of our clients.
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Gems & Gemology
About The IDG
IDG is a leading laboratory specializing in the testing and evaluation of gemstones and diamonds. We take pride in our extensive expertise and commitment to delivering the highest levels of quality and transparency in every service we provide. Our goal is to set the gold standard in the industry, offering our expertise and knowledge to every client.
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Featured Gems
01.
Ruby
Ruby is one of the most valuable and distinguished gemstones in the world, known for its vibrant and varied colors and excellent hardness. It belongs to the corundum family, which also includes sapphire.
02.
Emerald
Emerald is one of the rarest and most valuable gemstones in the world, known for its rich, vibrant green color. It belongs to the beryl family, which also includes aquamarine and morganite.
03.
Sapphire
Sapphire, also known as the blue sapphire, is one of the most prominent gemstones in the world, renowned for its rich blue color. It belongs to the corundum family, thesame family that includes ruby.
04.
Diamond
Diamond is a carbon-based material that crystallizes in a cubic system and is considered the hardest known natural substance. It is highly valued for its beauty, rarity, and unique properties, making it one of the most renowned and valuable gemstones.
Featured Gems
Peridot
Found in lava, meteorites, and deep in the earth’s mantle, yellow-green peridot is the extreme gem.
Fancy Color Diamond
Dazzling brilliance. Captivating color. These are the planet’s most valued gems.
Diamond
Diamonds are among nature’s most precious and beautiful creations.
Emerald
Emerald is the bluish green to green variety of beryl, a mineral species that includes aquamarine.
Research & News
Learn the latest on Madagascar sapphires and demantoid garnets from Wim Vertriest, GIA Manager of Field Gemology.
Learn the latest on Madagascar sapphires and demantoid garnets from Wim Vertriest, GIA Manager of Field Gemology.
Check the report
Our report verification service allows you to easily verify the authenticity of your report. Simply enter the unique dentification number in the field below. You will gain access to the report information online, along with a high-quality image of your jewelry piece.
WHY US ?
Expertise
Our team consists of certified experts with extensive experience in gemology and diamonds, holding global certifications from the American GIA. This ensures that we provide the highest level of service.
Quality
We are committed to using the latest equipment and technologies to guarantee the accuracy and reliability of our reports.
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Ulva Wilkinson
Customer
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Ulva Wilkinson
Customer
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