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OGI Ltd Loose Gemstones

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GIA Certified No Heat Oval Natural Ruby Weighing 1.18 Carats Gemstone
By OGI Ltd
Located in New York, NY
Introducing the Exquisite GIA Certified No Heat Oval Natural Ruby Weighing 1.18 Carats Elevate your jewelry collection with this stunning and rare GIA Certified No Heat Oval Natural ...
Category

20th Century American Contemporary Loose Gemstones

Materials

Ruby

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

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 Carved Colombia Emerald Loose Stone Weighing 4.35 Carats
By OGI Ltd
Located in New York, NY
Introducing our exquisite GIA certified carved Colombia Emerald loose stone, a true masterpiece of nature. This captivating gem weighs a remarkable 4.35 carats, making it a truly val...
Category

20th Century Colombian Contemporary Loose Gemstones

Materials

Emerald

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 Natural 18.18 Carats Blue Star Sapphire Loose Stone
By OGI Ltd
Located in New York, NY
A rare, investment quality GIA no heat, Ceylon Star Sapphire weighing 18..18 carats Sapphire color is medium to deep blue, rarely available GIA REPORT 1226671016 Transparent To Sem...
Category

20th Century Sri Lankan Contemporary Loose Gemstones

Materials

Sapphire, Blue Sapphire, Star Sapphire

AGL Certified Gemstone Natural Corundum Pink Sapphire Weighing 2.92 Carats
By OGI Ltd
Located in New York, NY
AGL certificate Natural Pink Sapphire weighing 2.92 carats Purplish Pink Color Oval Shaped, mix cut Heated Color Stability Excellent Measuring 8.63x7.11x5.10 mm Natural corundum pi...
Category

Mid-20th Century Sri Lankan Contemporary Loose Gemstones

Materials

Pink Sapphire

GIA Certified No Heat Natural Sapphire Origin Sri Lanka Weighing 2.80 Carat
By OGI Ltd
Located in New York, NY
GIA certified no indication of heat, oval Sri Lanka sapphire weighing 2.80 carats GIA REPORT 2225687488 Cutting Style: Crown Modified Brilliant Cut Cutting Style: Pavilion Step Cut Transparency Transparent Color Blue Species Natural Corundum Variety Natural Sapphire Geographic Origin Sri Lanka TREATMENT No Indications of Heating Item Description: One loose stone Weight: 2.80 carats Measurements: 9.06 x 5.22 x 6.08 mm A GIA Natural Sapphire report is a gemological report issued...
Category

Vintage 1950s Sri Lankan Contemporary Loose Gemstones

Materials

Sapphire

GIA Certified Oval Ruby Natural Corundum Loose Stone Weighing 2.09 Carat Heated
By OGI Ltd
Located in New York, NY
Rubies are highly prized gemstones known for their vibrant red color and durability. G I A Gemological Report 2225734049 Ruby shaped Oval Cutting Style: Crown Brilliant Cut Cutting Style: Pavilion Step Cut Transparency Transparent Color Red Species Natural Corundum Heated Weight: 2.09 carats Measurements: 8.48 x 6.68 x 4.02 m A GIA Ruby Report is a gemological report issued...
Category

Vintage 1950s Burmese Contemporary Loose Gemstones

Materials

Ruby

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 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 Trans...
Category

Early 20th Century Burmese Contemporary Loose Gemstones

Materials

Sapphire

GIA Certificated Oval Carved Double Sided Cabochon Emerald Weighing 53.64 Carats
By OGI Ltd
Located in New York, NY
G I A G EMO L O G IC A L R E P O R T EMERALD REPORT GIA REPORT 522173152 Shape Oval Carved Double Cabochon Transparency Translucent Color Green Species Natural Beryl TREATMENT Clarit...
Category

Early 20th Century Colombian Contemporary Loose Gemstones

Materials

Emerald

GIA Certified No Heat Octagonal Natural Ruby Weighing 1.34 Carats
By OGI Ltd
Located in New York, NY
GIA Certified No Heat Octagonal Natural Ruby - 1.34 Carats Elevate your jewelry collection with this exquisite GIA Certified No Heat Octagonal Natural Ruby, a rare and coveted gemsto...
Category

Mid-20th Century American Contemporary Loose Gemstones

Materials

Ruby

GIA Certified 5231058396 No Heat Red Burma Cabochon Ruby 4.63 Carats
By OGI Ltd
Located in New York, NY
GIA Certified 5231058396 No Heat Red Burma Cabochon Ruby 4.63 Carats Discover the exquisite beauty of this GIA certified No Heat Red Burma Cabochon Ruby, a rare gemstone that boasts ...
Category

Early 20th Century Burmese Contemporary Loose Gemstones

Materials

Ruby

GIA No Heat Natural Cabochon Burma Sapphire Weighing 8.35 Carat Loose Stone
By OGI Ltd
Located in New York, NY
Introducing an Exquisite 8.35 Carat GIA Certified Natural Cabochon Burma Sapphire - A Rare Gem of Unparalleled Beauty Discover the allure of this mesmerizing 8.35 carat GIA-certified...
Category

Vintage 1950s Burmese Contemporary Loose Gemstones

Materials

Blue Sapphire, Sapphire

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Have a look at this beautiful natural Brazilian Paraiba tourmaline gemstone with AIGS report. breathtaking and elegant. Natural Mozambique Tourmaline...
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1.36 Carat GIA Certified No Heat Pear Shape Ruby
Located in Great Neck, NY
GIA Certified Pear Shape Ruby 1.36 Carats (8.41x5.95x3.12) mm NO HEAT
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2010s Modern Loose Gemstones

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GIA Certified 3.17 Carats Unheated White Sapphire
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Introducing a stunning 3.17-carat Natural Unheated White Sapphire, certified by GIA. With a captivating Oval shape (9.81 x 7.40 x 5.84 mm), it boasts Near Colorless brilliance in a M...
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21st Century and Contemporary Unknown Loose Gemstones

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Sapphire

GIA Certified 3.17 Carats Unheated White Sapphire
GIA Certified 3.17 Carats Unheated White Sapphire
Free Shipping
W 0.3 in D 0.23 in L 0.39 in
Certified 2.41 Carats Mozambique Ruby Oval Faceted Cutstone No Heat Natural Gem
Located in Jaipur, RJ
As we are auction partners at Gemfields, we have sourced these rubies from winning auctions and had cut them in our in house manufacturing responsibly. Weight: 2.41 Carats Size: 10x...
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Exceptional Vivid Tanzanite Loose Stone 11.01 Carats GIA Certified
Located in Media, PA
GIA REPORT NUMBER: 6234199403 This exceptional loose tanzanite stone, weighing 11.01 carats, has been certified by the Gemological Institute of America (GIA) for its authenticity. ...
Category

21st Century and Contemporary Tanzanian Loose Gemstones

Materials

Tanzanite

16.41 Carats Burmese Blue Sapphire No Heat Round cabochon Natural sapphire gem
Located in Jaipur, RJ
Burmese Blue Sapphire Round for Fine Jewellery Gemstone: Blue Sapphire No Heat Type : Burmese Shape: cabochon Carat weight: 16.41 Size - 10 To 12
Category

2010s Burmese Loose Gemstones

Materials

Blue Sapphire

Natural Burma Ruby - Burma Star Ruby -No Heat Burmese Ruby Cabochon Gemstone
Located in Jaipur, RJ
Natural Burma Ruby Star Ruby No Heat Cabochon Gemstone 65.03 Carats 58 Pieces (For Jewelry Making)
Category

21st Century and Contemporary Burmese Art Deco Loose Gemstones

Materials

Star Ruby, Ruby

Certified Natural No heat Blue Sapphire Ceylon Origin Gemstone 1.15 Ct
Located in Makola, LK
Natural Unheated Blue Sapphire, This exquisite gemstone originates from Ceylon (Sri Lanka), known for producing exceptional quality stones. With its internally flawless clarity. • V...
Category

21st Century and Contemporary Sri Lankan Modern Loose Gemstones

Materials

Purple Sapphire, Blue Sapphire

Certified 3.04 Carats Mozambique Ruby Cushion Faceted Cut stone No Heat Natural
Located in Jaipur, RJ
Certified 3.04 Carats Mozambique Ruby Cushion Faceted Cut stone No Heat Natural Gemstone - Ruby Weight: 3.04 Carats Size: 10.6x7.78x2.96 MM Pieces: 1 Shape: Faceted cushion cut stone
Category

21st Century and Contemporary Mozambican Art Deco Loose Gemstones

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Ruby

4.82carat Natural Blue Sapphire loose Stone oval shape Blue Sapphire
Located in Delhi, DL
Certified no heat no treatment Natural oval shape 4.82carat Blue sapphire Carat: 4.82 cts Colour: Blue L x W x D (mm): 10.1 x 8.9 x 5.9 Cut: Rectangular Cushion Mixed Cut Clarity: ...
Category

21st Century and Contemporary Sri Lankan Art Deco Loose Gemstones

Materials

Blue Sapphire

Exquisite Fancy Cut Loose Amethyst Gemstone 4.35 Carats Amethyst Jewelry
Located in Bangkok, TH
Exquisite Fancy Cut Loose Amethyst Gemstone, Available for sale at wholesale price natural high quality at 4.35 Carats Eye Clean Clarity Unheated Natural Amethyst From Brazil. Prod...
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21st Century and Contemporary Brazilian Modern Loose Gemstones

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Amethyst

1.66 Carat Natural No Heat Chrysoberyl Yellowish-Green stone
Located in Bangkok, TH
A breathtaking 1.66 Carat Chrysoberyl stone that is a gorgeous shade of yellowish green. The chrysoberyl hasn't undergone any form of treatment and is completely natural and of good...
Category

21st Century and Contemporary Loose Gemstones

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Chrysoberyl

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