Astro West Loose Gemstones
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10 Carat Australian Boulder Opal Freeform Cabochon
Located in New York, NY
This incandescent 10 ct. Boulder Opal freeform
cabochon features a captivating play of color across its polished surface with electrifying flashes of green, violet, aqua, and gold sh...
Category
2010s Australian Loose Gemstones
Materials
Opal
11.59 Carat Cushion Cut Petalite
Located in New York, NY
A magnificent 11.59-carat faceted Petalite gemstone from the legendary pegmatites of Minas Gerais, Brazil, this rare collector’s gem radiates a gentle champagne hue with remarkable c...
Category
2010s Brazilian Loose Gemstones
Materials
Other
9.25 Carat Rubellite Gemstone
Located in New York, NY
This exceptional and sizable 9.25 carat Rubellite Tourmaline boasts a rich, saturated magenta-red hue that captures and reflects light with intensity. Expertly faceted to showcase it...
Category
2010s Brazilian Loose Gemstones
Materials
Rubelite
11.20 Carat Brilliant Cut Rubellite
Located in New York, NY
Radiating elegance, this saturated Rubellite (Pink Tourmaline) gemstone boasts a vivid hue and expert faceting that delivers exceptional brilliance from every angle. The Rubellite's ...
Category
2010s Brazilian Loose Gemstones
Materials
Rubelite
62.9 Carat Cushion Cut Green Fluorite
Located in New York, NY
This impressive 62.9 carat natural Fluorite gemstone is a museum-caliber specimen showcasing the stunning luminosity for which Fluorite is prized. With remarkable clarity and a spark...
Category
2010s Pakistani Loose Gemstones
Materials
Fluorite
120.4 Carat Oval-Cut Fluorite
Located in New York, NY
This impressive 120.4 carat natural Fluorite gemstone is a museum-caliber specimen showcasing the stunning luminosity and color zoning for which Fluorite is prized. With remarkable c...
Category
2010s Pakistani Loose Gemstones
Materials
Fluorite
$1,926 Sale Price
20% Off
32.75 Carat Emerald Cut Watermelon Tourmaline
Located in New York, NY
This striking 32.75-carat Watermelon Tourmaline showcases a rare and highly desirable bi-color transition, blending delicate blush pink into rich teal blue with natural clarity and b...
Category
2010s Brazilian Loose Gemstones
Materials
Other, Tourmaline
$3,929 Sale Price
20% Off
Certified 24.47 Carat Green Apatite Gemstone
Located in New York, NY
Unveil nature’s palette with this Apatite gemstone, faceted into a large oval cut that radiates deep teal and forest green tones. This captivating gem exhibits exceptional brilliance...
Category
2010s Malagasy Loose Gemstones
Materials
Other, Apatite
GIA Certified 44.88 Carat Oval Cut Brown Topaz
Located in New York, NY
This extraordinary 44.88-carat brown Topaz is a statement in warmth and brilliance. Expertly faceted into a large oval cut, the gem radiates rich tones of cognac, amber, and deep moc...
Category
2010s Brazilian Loose Gemstones
Materials
Topaz
$1,436 Sale Price
20% Off
Aquamarine // 113.03 Carats
Located in New York, NY
This gigantic over 113 carat faceted clear blue oval cut aquamarine is out of Brazil, the world’s most important and largest commercial source of gem-grade aquamarine – having produc...
Category
2010s Brazilian Loose Gemstones
Materials
Aquamarine
$7,236 Sale Price
20% Off
27.03 Carat Salt and Pepper Diamond Crystal
Located in New York, NY
This natural diamond single crystal out of Canada weighs 27.03 carats and has salt and pepper coloration due to natural inclusions in the crystal lattice structure. It displays beaut...
Category
2010s Canadian Loose Gemstones
Materials
Diamond
13.86 Carat Aquamarine From Brazil
Located in New York, NY
This lovely sky blue aquamarine has been cut in a rectangular step cut for a stylish and unique display of its stunning clarity. It is out of Brazil, the world’s most important and l...
Category
2010s Brazilian Loose Gemstones
Materials
Aquamarine
$2,223 Sale Price
20% Off
Tricolor Tourmaline 12.74 Carats Modified Cushion Cut From Brazil
Located in New York, NY
This flawless faceted and polished bicolor tourmaline specimen from Brazil features deep green to blue and then to a rare chrome-yellow hue and incredible, glasslike clarity. tricolor tourmaline...
Category
2010s Brazilian Loose Gemstones
Materials
Tourmaline
$2,800 Sale Price
20% Off
GIA Certified 12.57 Carat Demantoid Garnet
Located in New York, NY
This tremendous over 12.50 carat green-brown round cut garnet var. demantoid from Madagascar displays a few horsetail inclusions. Commonly found in this rare species of garnet, the i...
Category
2010s Malagasy Loose Gemstones
Materials
Garnet
$15,079 Sale Price
20% Off
Fire Opal From Mexico
Located in New York, NY
Mexico
Opal is composed of hydrated silica. It is an amorphous silicate, meaning it does not form crystals. Opals are structurally composed of tiny spheres of silica which, when arranged in perfect geometry, create the famous play of color associated with the stones. The symmetrical arrangement of silica balls acts like a prism, which allows the rainbow spectrum of colors to be visible to the naked eye.
Fire opal is a transparent to translucent opal with warm body colors of yellow to orange to red. Although it does not usually show any play of color, occasionally a stone will exhibit bright green flashes. The most famous source of fire opals in Mexico is in the state of Queretaro; these opals are commonly called Mexican fire opals. Fire opals that do not show a play of color are sometimes referred to as jelly opals.
Cantera opal...
Category
2010s Mexican Loose Gemstones
Materials
Fire Opal
$2,000 Sale Price
20% Off
230.25 Carat Carbonado Black Diamond
Located in New York, NY
Presenting a once-in-a-lifetime opportunity: This monumental 230.25 carat carbonado diamond is the largest natural black diamond available on the market. Known for their extraordinary rarity and captivating origin, carbonado diamonds are believed by many in the scientific community to have formed in space and arrived on Earth via ancient meteorite impacts – making them not just gemstones, but celestial relics.
This uncut, museum-grade carbonado black diamond...
Category
2010s Canadian Loose Gemstones
Materials
Black Diamond
71.19 Carat Rough Black Diamond
Located in New York, NY
This lustrous rough black diamond mined in Canada weighs a hefty 71.19 carats. Black diamonds owe their opaque color to natural impurities in the crystal lattice and make beautiful c...
Category
2010s Canadian Loose Gemstones
Materials
Black Diamond
$197,750
91.40 Carat Natural Rough Black Diamond Cube
Located in New York, NY
This very lustrous, large rough black diamond mined in Canada weighs 91.40 carats and has crystallized in a natural cube shape. Black diamonds owe their opaque color to natural impur...
Category
2010s Canadian Loose Gemstones
Materials
Black Diamond
251.76 Carat Rough Black Diamond
Located in New York, NY
This lustrous, huge rough black diamond mined in Canada weighs 251.76 carats. Black diamonds owe their opaque color to natural impurities in the crystal lattice and make beautiful co...
Category
2010s Canadian Loose Gemstones
Materials
Black Diamond
$699,334
64.92 Carat Rough Black Diamond
Located in New York, NY
This lustrous, large rough black diamond mined in Canada weighs 64.92 carats. Black diamonds owe their opaque color to natural impurities in the crystal lattice and make beautiful co...
Category
2010s Canadian Loose Gemstones
Materials
Black Diamond
$180,334
86.22 Carat Rough Black Diamond
Located in New York, NY
This extremely lustrous and large rough black diamond mined in Canada weighs 86.22 carats. Black diamonds owe their opaque color to natural impurities in the crystal lattice and make...
Category
2010s Canadian Loose Gemstones
Materials
Black Diamond
$239,500
9.03 Carat White Diamond Crystal
Located in New York, NY
This natural white diamond single crystal out of Canada weighs 9.03 carats and displays amazing translucency and clarity. With beautiful luster and sharply-defined crystallization, i...
Category
2010s Canadian Loose Gemstones
Materials
White Diamond
9.22 Carat Oval Cut Rubellite Tourmaline
Located in New York, NY
This sparkling eye-clean oval-cut rubellite – a pink variety of elbaite, the most prized species of tourmaline – comes from Afghanistan and is well-faceted and perfectly balanced. An...
Category
2010s Afghan Loose Gemstones
Materials
Tourmaline
$2,461 Sale Price
20% Off
11.47 Carat Modified Trillion Cut Peridot From Pakistan
Located in New York, NY
This modified trillion cut peridot from Pakistan displays an olive green hue and good clarity with a chromite inclusion. The very large crystal of...
Category
2010s Pakistani Loose Gemstones
Materials
Peridot
Related Items
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Located in Jaipur, RJ
Certified 3.11 Carats Mozambique Ruby Cushion Faceted Cut stone No Heat Natural
Weight: 3.11 Carats
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5.62 Carat Cushion Mint Green Tourmaline Loose Gemstone - Tamir Beverly Hills
By Tamir
Located in Beverly Hills, CA
This exceptional pastel mint green tourmaline is offered as a loose gemstone, weighing 5.62 carats and cut in a refined cushion shape. Selected for its soft mint hue and bright prese...
Category
21st Century and Contemporary Congolese Contemporary Loose Gemstones
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$2,745
W 0.46 in D 0.32 in L 0.47 in
Deep Reddish Pink Natural Rubellite Tourmaline Ring Gemstone 4.20 Ct Cushion Cut
Located in Peshawar, PK
Top Color Rare Deep Reddish Pink Natural Rubellite Tourmaline Loose Gemstone for Ring, Pendant or any other Jewelry Setting-Square Cushion Cut from Kunar, Afghanistan!!
💎 GEMSTONE ...
Category
21st Century and Contemporary Afghan Contemporary Loose Gemstones
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6.14 Carat Tourmaline Gemstone, Cushion Cut Blue Green Loose Solitaire
Located in Greensboro, NC
Shape/Cut: Cushion
Color: Blue Green
Origin: Afghanistan
Dimensions (mm): 11.3 x 9.1 x 8.3
Weight: 6.14ct
This gemstone was cut by Clay Zava of Zava Mastercuts.
Please check ou...
Category
20th Century Afghan Loose Gemstones
Materials
Tourmaline
Sparkling 1.73 carat Oval Cut Brilliant Diamond
Located in רמת גן, IL
Natural cut Oval diamond in a 1.73 carat D IF cut. This diamond comes with GIA Certificate and laser inscription number.
Experience the timeless elegance of a 1.73 carat D IF oval...
Category
2010s Israeli Loose Gemstones
Materials
Diamond
Greenish Seafoam Natural Tourmaline Gemstone 9.25 Ct Cushion Cut-Pendant Jewelry
Located in Peshawar, PK
GEMSTONE TYPE: Natural Tourmaline
PIECE(S): 1
WEIGHT: 9.25 Carats
SHAPE: Cushion
SIZE (MM): 12.75 x 11.91 x 8.50
COLOR: Greenish Seafoam
CLARITY: Moderately Included
TREATMENT: Non...
Category
21st Century and Contemporary Afghan Contemporary Loose Gemstones
Materials
Tourmaline
$1,467 Sale Price
30% Off
W 0.47 in D 0.34 in L 0.51 in
11.98 Carat cushion shape Ruby (Heat)
Located in Bangkok, TH
A gorgeous 11.98 Carat Ruby gemstone. It is completely natural and of good quality. The ruby has a cushion shape and its color is a deep, pigeon blood red hue that is absolutely stun...
Category
21st Century and Contemporary Loose Gemstones
Materials
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6.9 Carat Rubellite Tourmaline Gemstone Pear Shape 14x11.3mm Loose Gemstone
Located in Columbus, OH
NNJ Designs presents a 6.93 carat pear shaped Rubellite Tourmaline loose gemstone! This Rubellite Tourmaline gemstone would be perfect for the jewelry setting for your choice and can...
Category
21st Century and Contemporary Loose Gemstones
Materials
Rubelite
$2,772 Sale Price
20% Off
W 4.45 in L 5.52 in
2.70 Carat Stunning Faceted Rubellite Tourmaline Oval Shape Gemstone
Located in Peshawar, PK
Loose Rubellite Tourmaline
Weight: 2.70 Carats
Dimension: 10.9 x 7.3 x 4.8 Mm
Origin: Afghanistan
Shape: Oval
Certificate: On Demand
Rubellite tourmaline, often regarded as the "l...
Category
21st Century and Contemporary Afghan Arts and Crafts Loose Gemstones
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Rubelite, Tourmaline
$350
W 0.29 in D 0.19 in L 0.43 in
0.62 carats Mint Green Tourmaline Asscher Cut Natural Afghan Gemstone
Located in Bangkok, TH
Weight 0.62 carats
Dimensions 4.8x4.7x3.7 mm
Treatment none
Origin Afghanistan
Clarity SI
Shape octagon
Cut asscher
The 0.62 carat Mint Green Tourmaline stone, meticulously cu...
Category
21st Century and Contemporary Afghan Modern Loose Gemstones
Materials
Tourmaline
$70
W 0.19 in D 0.15 in L 0.19 in
1.70 Carat Natural Loose Rubellite Tourmaline Cushion Shape Gemstone
Located in Peshawar, PK
Faceted Rubellite Tourmaline
Weight: 1.70 Carat
Dimension: 7.3 x 7.1 x 4.1 Mm
Colour: Pink
Certificate: On Customer Demand
Shape: Cushion
Tourmaline is a captivating gemstone kno...
Category
21st Century and Contemporary Afghan Arts and Crafts Loose Gemstones
Materials
Rubelite, Tourmaline
$350
W 0.28 in D 0.17 in L 0.29 in
11.20 Carat Natural Loose Green Tourmaline Stone Cushion Cut Afghan Gemstone
Located in Bangkok, TH
Weight 11.20 carat
Dimensions 12.9x11.6x9.2mm
Treatment None
Origin Afghan
Clarity Loup Clean
Shape Cut Cushion
This magnificent 11.20 Carat Natural Loose Green Tourmaline f...
Category
21st Century and Contemporary African Modern Loose Gemstones
Materials
Tourmaline
$4,250
W 0.46 in D 0.37 in L 0.51 in