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GIA No Heat Natural Transparent Orange Spessartite Garnet Weighing 27.88 Carats

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GIA Certified No Heat Natural Star Ruby Loose Stone Weighing 4.84 Carats
By OGI Ltd
Located in New York, NY
A rare, investment quality GIA star ruby weighing 4.84 carats, no indication of heating GIA REPORT 6224671008 Natural star rubies are relatively rare and...
Category

20th Century Sri Lankan Contemporary Loose Gemstones

Materials

Ruby, Star Ruby

GIA Certified No Heat Pear Shape Carving Natural Sapphire Weighing 4.70 Carats
By OGI Ltd
Located in New York, NY
GIA-certified No Heat Pear Shape Carving Natural Sapphire weighing 4.70 carats can be considered a valuable gemstone. GIA REPORT 222171092 Shape Pear Shape Carving Transparency Transparent Color Blue Species Natural Corundum Natural Sapphire TREATMENT: No Indications of Heating One loose stone Weight: 4.70 carats Measurements: 12.79 x 10.63 x 3.33 mm GIA is the most established certification company in the world. They have been around since 1931 and are the foremost authority on diamonds, gems and pearls. They are a non-profit organization that sets the standards for jewels and identification world-wide. Gemstones are rare natural resources of nature. Each gemstone is unique. One can compare the market for gemstones well with the art market Untreated gemstones are best suited for investment. In the case of sapphire and ruby, this implies that they are not heated, as 98...
Category

Early 20th Century Burmese Contemporary Loose Gemstones

Materials

Sapphire

GIA Certified #5231058390 No Heat Ceylon Cabochon Sapphire Weighing 17.16 carat
By OGI Ltd
Located in New York, NY
Introducing a Magnificent GIA Certified No Heat Ceylon Cabochon Sapphire Dazzle and amaze with this exquisite GIA Certified #5231058390 No Heat Ceylon Cabochon Sapphire, a true gem o...
Category

20th Century Sri Lankan Contemporary Loose Gemstones

Materials

Sapphire, Blue Sapphire

GIA Certified No Treatment Octagonal Natural Quartz Citrine Weighing 42.43 Carat
By OGI Ltd
Located in New York, NY
Rarity is an essential factor in determining the value of gemstones. Natural citrines are rarer than amethysts or smoky quartz because they occur less frequently in nature. The abse...
Category

Early 20th Century Malagasy Contemporary Loose Gemstones

Materials

Citrine, Quartz

GIA Certification Natural Star Sapphire Oval Cabochon 6.89 Carats No Heat
By OGI Ltd
Located in New York, NY
Product Description: Discover the allure of this exquisite natural star sapphire, a gem that captivates with its mesmerizing beauty and rarity. This stunning gemstone is perfect for ...
Category

Mid-20th Century Sri Lankan Contemporary Loose Gemstones

Materials

Star Sapphire

GIA Certified #6234058393 No Heat Ceylon Natural Star Sapphire 18.66 carats
By OGI Ltd
Located in New York, NY
"GIA Certified 18.66 Carat No Heat Ceylon Natural Star Sapphire - Spectacular Gemstone" Elevate your jewelry collection with this extraordinary GIA Certified Ceylon Natural Star Sapp...
Category

20th Century Sri Lankan Contemporary Loose Gemstones

Materials

Star Sapphire

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