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San Diego - Loose Gemstones

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Item Ships From: San Diego
GIA Certified Emerald Cut Natural Diamond 1.60ct F/VS1 Loose GIA XX Inscription
By GIA
Located in Rancho Santa Fe, CA
Exquisite loose 1.60ct emerald-cut diamond certified by GIA with laser inscription number 1175388529. F Color and VS1 Clarity with no fluorescence. The diamond has excellent polish a...
Category

2010s American Modern San Diego - Loose Gemstones

Materials

Diamond

GIA Certified 109 Carats Natural Melo Pearl Extremely Rare Collector's Dream
Located in La Jolla, CA
Extremely Rare & Desirable Collector's Pearl The Natural Saltwater Melo Melo Pearl is round with beautiful yellowish orange color and flame pattern a...
Category

21st Century and Contemporary San Diego - Loose Gemstones

Materials

Pearl

1.00ct Loose Cushion Cut Natural Diamond GIA Certified, H Color, VS2 Clarity
Located in Rancho Santa Fe, CA
Brilliant 1.00ct loose cushion modified brilliant-cut diamond that's been GIA certified. The color is H with a faint fluorescence which brightens and whitens the diamond. The diamond...
Category

2010s Unknown Modern San Diego - Loose Gemstones

Materials

Diamond

3.18ct Round Brilliant Diamond Loose GIA Certified H/SI1, Triple Excellent
Located in Rancho Santa Fe, CA
We are offering a beautiful loose ideal cut round brilliant diamond that weighs 3.18 carats. It has an H color, SI1 clarity, excellent polish, symmetry, and cut, and no fluorescence....
Category

2010s Unknown Modern San Diego - Loose Gemstones

Materials

Diamond

1.53ct Round Brilliant Cut Natural Diamond GIA Certified Loose Excellent E SI2
Located in Rancho Santa Fe, CA
Beautiful 1.53ct round brilliant cut diamond that has been certified by GIA #168604401. See the GIA certificate in the image gallery. Design your own jewelry piece with this diamond...
Category

Early 2000s Unknown Modern San Diego - Loose Gemstones

Materials

Diamond

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This stunning 1.00-carat emerald-cut diamond radiates elegance with its timeless shape and exceptional sparkle. Graded J color by the GIA, it offers a warm brilliance, making it an e...
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2010s American San Diego - Loose Gemstones

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Loose Diamond - Round Brilliant Cut 2.80ct GIA D VS1 Solitaire
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21st Century and Contemporary San Diego - Loose Gemstones

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17 Carat Collector's Cambodian Blue Zircon
Located in Hua Hin, TH
Collectors Item: 17.03 carat Natural Blue Zircon from Ratanakiri, Cambodia. Blue zircons this high quality we have decided to give the title of 'Azure Blue' due to it being imbued wi...
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2010s Cambodian San Diego - Loose Gemstones

Materials

Zircon, Blue Zircon

17 Carat Collector's Cambodian Blue Zircon
17 Carat Collector's Cambodian Blue Zircon
W 0.5 in D 0.41 in L 0.51 in
Reddish Purple Garnet Gem – Rare Collector’s Treasure for Custom Luxury Jewelry
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GIA Certified Paraiba Tourmaline 1.52 Carat Natural
Located in Aliso Viejo, CA
It comes with the Original GIA Certificate Natural Paraiba Tourmaline Carat Weight: 1.52 Carats Measurements: 6.99 x 6.13 x 5.57 mm
Category

21st Century and Contemporary Contemporary San Diego - Loose Gemstones

Materials

Tourmaline, Paraiba

Stunning 0.51ct M SI2 Round Cut Natural Loose Diamond
Located in New York, NY
ITEM DESCRIPTION ID #: 53634 Stone Shape: Round Cut Diamond Diamond Weight: 0.51 CT Clarity: SI2 Color: M Measurements 5.35 x 5.36 x 2.86 mm Our Price: $355.00 These genuine diamond...
Category

15th Century and Earlier Antique San Diego - Loose Gemstones

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White Diamond

Red Spinel Pear-Shaped Gem from Mahenge – Rare Collector’s Treasure By Merkaba
By Merkaba
Located in Beverly Hills, CA
Extraordinary 2.96 Carat Red Spinel Pear-Shaped Gem from Mahenge, Tanzania: A Rare Treasure for Collectors and a Perfect Holiday Gift By Merkaba Beverly Hills. Introducing a 2.96 carat Red Spinel, masterfully cut into an elegant pear shape and sourced from the legendary mines of Mahenge, Tanzania. This exceptional gemstone, offered loose, is a collector’s dream and a romantic holiday gift for someone truly special. With its intense crimson hue, superb clarity, and rare origin, this Spinel embodies the beauty and rarity of nature’s finest creations. Whether preserved as part of a gemstone collection or transformed into bespoke jewelry, this gem promises to captivate hearts and minds. The Allure of Mahenge Red...
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Spinel, Other

GIA Certified 1-Carat Trillion Cut Natural Diamond
Located in New York, NY
ITEM DESCRIPTION Stone Shape: Trillion Diamond Weight: 1 Carat Color: U-V Measurements: 6.33 x 7.36 x 2.75 mm Symmetry: Good Polish: Excellent Fluorescence: Faint Certifying Lab: GI...
Category

21st Century and Contemporary Modern San Diego - Loose Gemstones

Materials

Diamond

GIA Certified 0.54 Carat Princess Cut Natural Diamond, J Color, VS2 Clarity
Located in Van Nuys, CA
Diamond General Info. GIA Report Number: 1182451620. Diamond Cut: Square Modified Brilliant. Measurements: 4.46 x 4.42 - 3.17 mm. Diamond Grading Results. Carat Weight: 0.54. Co...
Category

21st Century and Contemporary Unknown San Diego - Loose Gemstones

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Diamond

Rare GIA Certified 1.53 Carat Buddha N SI2 Natural Diamond
Located in New York, NY
ITEM DESCRIPTION ID #: NYC55300 Stone Shape: BUDDHA MODIFIED BRILLIANT Diamond Weight: 1.53 CT Clarity: SI2 Color: N Cut: Excellent Measurements: 7.79 X 7.84X 3.15mm Depth %: 40.20%...
Category

21st Century and Contemporary San Diego - Loose Gemstones

Materials

Diamond, White Diamond, Blue Diamond

Unheated Chrysoberyl Cushion Gem – Rare Collector’s Treasure for Custom Jewelry
By Merkaba
Located in Beverly Hills, CA
Rare 9.42 Carat Natural Unheated Chrysoberyl Cushion-Cut Gem: A Collector’s Treasure - Merkaba Jewelry Beverly Hills. Introducing an exceptional 9.42 carat natural unheated Chrysobe...
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21st Century and Contemporary Malagasy Contemporary San Diego - Loose Gemstones

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EXTREMELY RARE! GIA Certified 2.02 Carat Lozenge Kite Step cut Antique Diamond
Located in New York, NY
ITEM DESCRIPTION ID #: NYC57128 Stone Shape: MODIFIED LOZENGE STEP CUT Diamond Weight: 2.02 CT Clarity: I1 Color: G Cut: Excellent Measurements: 17.14 X 7.35 X 2.86 mm Depth %: 38....
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21st Century and Contemporary North American Art Deco San Diego - Loose Gemstones

Materials

White Diamond, Diamond

Previously Available Items
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