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USA - Loose Gemstones

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Item Ships From: USA
1.09 Carat Round White Natural Sapphire GIA Certified Unheated
Located in San Francisco, CA
This Round-Shaped 1.09-carat Natural Unheated White sapphire GIA certified has been hand-selected by our experts for its top luster and unique ...
Category

21st Century and Contemporary Sri Lankan USA - Loose Gemstones

Materials

Sapphire

Unheated Color Change Brazilian Alexandrite Gemstone 0.34 carats with GIA Report
Located in Los Angeles, CA
Introducing a dazzling Natural Brazilian Alexandrite weighing 0.34 carats, accompanied by a GIA Report. This oval-shaped gem measures 5.82 x 3.39 x 1.99 mm and exhibits a captivating...
Category

21st Century and Contemporary Brazilian USA - Loose Gemstones

Materials

Alexandrite

33.95 Carat Imperial Topaz Cushion, Unset Loose Gemstone, GIA Certified
By Sarosi By Timeless Gems
Located in Los Angeles, CA
This impressive, peachy orange gem is a beautiful example of Imperial topaz at its finest! It is an exquisite gem exhibiting superior brilliance and life, weighs 33.95 carats, and is...
Category

21st Century and Contemporary Artisan USA - Loose Gemstones

Materials

Topaz, Imperial Topaz

1.52 Ct Blue Sapphire Cushion Loose Gemstone
Located in Fort Lee, NJ
A highly precious September birthstone with a delighting blue color. They are believed to bring good luck & fortune to life. Explore vibrant collection of Emerald, Ruby & Sapphires ...
Category

2010s Sri Lankan USA - Loose Gemstones

Materials

Blue Sapphire

GIA Certified Emerald Cut Natural Diamond 1.60ct F/VS1 Loose GIA XX Inscription
By GIA
Located in San Diego, 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 USA - Loose Gemstones

Materials

Diamond

GIA Certified 6.07 Carat Fancy Cushion Brilliant Deep Brown Diamond
By Meghna Jewels
Located in Hoffman Estate, IL
An exceptional 6.07 carat SI1 Clarity fancy cushion brilliant cut deep brown diamond certified by GIA. We can custom design as per your request, additional fees may apply depending o...
Category

21st Century and Contemporary Modern USA - Loose Gemstones

Materials

Brown Diamond

Gia Certified 1.50 Carat G Vvs2 Round Brilliant Diamond
Located in New York, NY
ITEM DESCRIPTION ID #: NYC56426 Stone Shape: ROUND BRILLIANT Diamond Weight: 1.50 CT Clarity: VVS2 Color: G Cut: Excellent Measurements: 7.26 X 7.32 X 4.55 mm Depth %: 62.30% Table %...
Category

15th Century and Earlier Antique USA - Loose Gemstones

Materials

White Diamond

Natural Tanzanite 10x8mm 3.31 Cts Oval AAAA Loose Gemstone December Birthstone
Located in New York, NY
♥ Welcome to Blue Star Gems: Your stop for Natural Loose Gemstones for Jewelry making and Best Quality and affordable Gemstones for the Price you Pay We are Loose Gemstones Manufactu...
Category

21st Century and Contemporary Tanzanian Art Deco USA - Loose Gemstones

Materials

Tanzanite

5.02 Ct Blue Sapphire Round Loose Gemstone
Located in Fort Lee, NJ
A highly precious September birthstone with a delighting blue color. They are believed to bring good luck & fortune to life. Explore vibrant collection of Emerald, Ruby & Sapphires ...
Category

2010s Sri Lankan USA - Loose Gemstones

Materials

Blue Sapphire

GIA Certified 0.11ct Fancy Orangy pink Pear Shape Natural Diamond
Located in New York, NY
ITEM DESCRIPTION ID #: NYC58603 Stone Shape: Heart Diamond Weight: 0.11ctw Fancy Color: Light purplish pink Cut: Modified Brilliant Measurements: 2.72 x 3.07 x 1.93 mm Symmetry: Exc...
Category

21st Century and Contemporary USA - Loose Gemstones

Materials

Pink Diamond

83.27 Carat Brazilian Amethyst Asscher Cut Gem – Rare Gemstone for Collectors
By Tamir
Located in Beverly Hills, CA
Incredible 83.27 Carat Brazilian Amethyst Asscher Cut Gem – A Rare Treasure for Avid Collectors - Tamir By Merkaba Beverly Hills Elevate your gemston...
Category

21st Century and Contemporary Brazilian Contemporary USA - Loose Gemstones

Materials

Amethyst, Quartz

Loose Spessartite Mandarin Garnet, 4.51 Carat Unset Ring or Pendant Gemstone
By Sarosi By Timeless Gems
Located in Los Angeles, CA
If you love the bright color of Mandarin oranges, this gemstone is for you! This brilliant, electric orange spessartite garnet is simply stunning! Weighing 4.51 carats, it is a beaut...
Category

21st Century and Contemporary Artisan USA - Loose Gemstones

Materials

Garnet, Mandarin Garnet

0.92 Carat Purple Amethyst Loose Gemstone Pear Shape 7x5mm
Located in Columbus, OH
NNJ Designs presents a 0.92 carat pear shaped Purple Amethyst loose gemstone! This Purple Amethyst gemstone would be perfect for the ring or pendant setting of your choice and can be...
Category

2010s American USA - Loose Gemstones

Materials

Amethyst

Loose Spessartite Mandarin Garnet, 4.97 Carats, Gemstone for Ring or Pendant
By Sarosi By Timeless Gems
Located in Los Angeles, CA
This 4.97 carat cushion-cut Mandarin garnet is absolutely gorgeous! Spessartite garnets are a beautiful variety of January's birthstone that occur in a range of striking orange hues....
Category

21st Century and Contemporary Artisan USA - Loose Gemstones

Materials

Garnet, Mandarin Garnet

Argyle 0.16 Carat Natural Pink Champagne Round Shape Loose Diamond
Located in Great Neck Plaza, NY
An exceptional and rare 0.16 carat natural pink champagne diamond sourced from the legendary Argyle Mine, renowned for producing over 90% of the world’s pi...
Category

2010s Australian USA - Loose Gemstones

Materials

Diamond, Pink Diamond

CLOSE OUT GIA 0.15 Carat Natural Fancy Deep Orange Brown Pear Shape Diamond
Located in Great Neck Plaza, NY
GIA natural fancy deep orange brown pear shape diamond weighing 0.15 carats.
Category

2010s American USA - Loose Gemstones

Materials

Diamond, Brown Diamond

Plat /18kt Yellow Gold Diamond .45ct. Moon Pendant
By Jose Trillos
Located in New York, NY
Thia 18 karat yellow gold pendant is crafted in a sand blasted finish. The pendant is designed with a texture to give the feel of the moon's craters. A platinum crescent set with 0.4...
Category

1980s American Retro Vintage USA - Loose Gemstones

Materials

Diamond, Platinum, Yellow Gold, 18k Gold

GIA Certified 7.00 Carats Natural Diamond
Located in Massafra, IT
A rare big GIA certified Natural Diamond , in perfect cushion cut , of 7,00 carats, I color VS2 clarity, very sparkly, bright, a very exceptional piece . Complete with GIA certificat...
Category

21st Century and Contemporary USA - Loose Gemstones

Materials

Diamond

Meghna GIA Certified Radiant Brilliant Cut Fancy Yellow 4.07 Carat Diamond Ring
By Meghna Jewels
Located in Hoffman Estate, IL
An exquisite 4.07 investment grade radiant brilliant cut diamond certified by GIA. We can custom design as per your request, additional fees may apply depending on design. Shape LR_...
Category

21st Century and Contemporary Unknown Modern USA - Loose Gemstones

Materials

Diamond, Yellow Diamond

1.67 Ct Emerald Octagon Loose Gemstone
Located in Fort Lee, NJ
With a vibrant green color hue, the birthstone for May is a symbol of renewed spring growth. Explore vibrant collection of Emerald, Ruby & Sapphires in our store available as a loo...
Category

2010s Zambian USA - Loose Gemstones

Materials

Emerald

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 USA - Loose Gemstones

Materials

Black Diamond

230.25 Carat Carbonado Black Diamond
230.25 Carat Carbonado Black Diamond
$208,333 Sale Price
25% Off
Rare 5.73 Carat Natural Red Spinel Emerald Cut – Collector's Luxury Gemstone
By Merkaba
Located in Beverly Hills, CA
Design Your Own Jewelry Exceptional 5.73 Carat Natural Red Spinel – A Rare Collector's Gem By Merkaba Beverly Hills. Discover unparalleled luxury with this 5.73 carat natural Red S...
Category

21st Century and Contemporary Tanzanian Art Deco USA - Loose Gemstones

Materials

Spinel

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 USA - Loose Gemstones

Materials

Black Diamond

251.76 Carat Rough Black Diamond
251.76 Carat Rough Black Diamond
$524,500 Sale Price
25% Off
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 USA - Loose Gemstones

Materials

Black Diamond

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 USA - Loose Gemstones

Materials

Black Diamond

64.92 Carat Rough Black Diamond
64.92 Carat Rough Black Diamond
$135,250 Sale Price
25% Off
1.63 Carat Natural Blue Sapphire Loose Gemstone Sri Lanka
By Emeralds Maravellous
Located in US
1.63 Carat Natural Blue Sapphire Loose Gemstone Sri Lanka Main Stone: Natural sapphire Gemstone Creation: Natural Clarity: Slight inclusions Cut Grade: Good Gemstone Form: Cut Shape:...
Category

21st Century and Contemporary Sri Lankan Art Deco USA - Loose Gemstones

Materials

Blue Sapphire

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 USA - Loose Gemstones

Materials

Black Diamond

86.22 Carat Rough Black Diamond
86.22 Carat Rough Black Diamond
$179,625 Sale Price
25% Off
Loose Spessartite Mandarin Garnet, 4.50 Carat Pear Shape Gem for Ring, Pendant
By Sarosi By Timeless Gems
Located in Los Angeles, CA
This 4.50 carat pear-shaped spessartite garnet is absolutely spectacular and will make a stunning ring or pendant! Spessartite is a variety of January's birthstone that, while unfami...
Category

21st Century and Contemporary Artisan USA - Loose Gemstones

Materials

Garnet, Mandarin Garnet

Opal Stone 13.88 Carat Natural Ethiopian Marquise loose Gemstone
By Merkaba
Located in Beverly Hills, CA
Natural 13.88 carat Marquise Ethiopian Opal loose gemstone, offered unmounted to a fine gem lover. Returns are accepted and paid by us within 7 days of delivery. We offer supreme cus...
Category

21st Century and Contemporary Ethiopian Contemporary USA - Loose Gemstones

Materials

Opal

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 USA - Loose Gemstones

Materials

White Diamond

9.03 Carat White Diamond Crystal
9.03 Carat White Diamond Crystal
$25,000 Sale Price
25% Off
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 USA - Loose Gemstones

Materials

Black Diamond

71.19 Carat Rough Black Diamond
71.19 Carat Rough Black Diamond
$148,312 Sale Price
25% Off
5.27 Ct Blue Sapphire Pear Loose Gemstone
Located in Fort Lee, NJ
A highly precious September birthstone with a delighting blue color. They are believed to bring good luck & fortune to life. Explore vibrant collection of Emerald, Ruby & Sapphires ...
Category

2010s Sri Lankan USA - Loose Gemstones

Materials

Blue Sapphire

Natural Green Namibian Demantoid Garnet Gemstone 2.28 carats with GIA Report
Located in Los Angeles, CA
Immerse yourself in the captivating charm of a 2.28 carats Natural Namibian Pear Demantoid Garnet. Validated by a GIA Report, this gem boasts dimensions of 8.8 x 6.66 x 5.21 mm, refl...
Category

21st Century and Contemporary Namibian Modern USA - Loose Gemstones

Materials

Garnet

GIA Certified 1.99 Carats Natural Diamond D / IF Triple XXX
Located in Massafra, IT
An exceptional rare GIA Certified Natural Diamond of 1,99 carats, in perfect round brilliant cut , triple XXX , D color IF clarity, excellent quality, so sp...
Category

21st Century and Contemporary USA - Loose Gemstones

Materials

Diamond

Meghna Jewels 1.0 Carat IF Fancy Pear Shape Intense Orange Yellow Diamond GIA
By Meghna Jewels
Located in Hoffman Estate, IL
An exceptional 1.0 carat IF Clarity fancy pear cut yellow diamond certified by GIA. We can custom design as per your request, additional fees may apply depending on design. Shape PE...
Category

21st Century and Contemporary Contemporary USA - Loose Gemstones

Materials

Yellow Diamond

5 Ct Brazilian Alexandrite Gemstone - Exceptional Color Change – Collector Dream
By Merkaba
Located in Beverly Hills, CA
Ultra-Fine Rare Brazilian Alexandrite Gemstone by Merkaba Jewelry Beverly Hills. Merkaba Jewelry Beverly Hills proudly presents an extraordinary treasure: a 5.34 carat Brazilian Ale...
Category

21st Century and Contemporary Brazilian Contemporary USA - Loose Gemstones

Materials

Alexandrite, Chrysoberyl

1.90 Ct Ruby Oval Loose Gemstone
Located in Fort Lee, NJ
An exquisite red color birthstone for July, believed to convey a status of power & wealth. Explore vibrant collection of Emerald, Ruby & Sapphires in our store available as a loose ...
Category

2010s Malagasy USA - Loose Gemstones

Materials

Ruby

GIA Certified 1.03 Carat M I1 Pear Shape Diamond
Located in New York, NY
ITEM DESCRIPTION ID #: NYC56384 Stone Shape: PEAR MODIFIED STEP CUT Diamond Weight: 1.03 CT Color: M Clarity: I1 Cut: Excellent Measurements: 8.74 X 5.83 X 3.15 mm Symmetry: Very Po...
Category

21st Century and Contemporary USA - Loose Gemstones

Materials

Diamond, White Diamond, Blue Diamond

Natural Green Colombian Emerald Stone 1.86 carats with GIA Report / JupiterGem
Located in Los Angeles, CA
Colombian gems are renowned for their vibrant bluish-green hue, epitomized by this 1.86-carat pear-shaped emerald. GIA-certified, this gem has been meticulously fashioned, displaying...
Category

21st Century and Contemporary Colombian USA - Loose Gemstones

Materials

Emerald

3.81 Carat 10x8.5 Muzo Green Colombian Emerald - Genuine Emerald Cut
Located in Jupiter, FL
Stone: Emerald Weight: 3.81-carats Shape: Emerald Cut Clarity: Transparent Luster: Very Good Color: Muzo Green Measurements: 9.97mm x 8.66mm x 6.90mm Geographic Origin: Colombia Trea...
Category

2010s Colombian Modern USA - Loose Gemstones

Materials

Emerald

CLOSE OUT GIA 6.49 Carats Orangy Brown Diamond Briolette
Located in Great Neck Plaza, NY
GIA 6.49 Carats Orangy Brown Diamond Briolette Featuring a cognac-colored briolette weighing 6.49 carats. *Free shipping within the US
Category

2010s American USA - Loose Gemstones

Materials

Diamond, Brown Diamond, Rose Gold

Rectangular Oval Ethiopian Opal – Rare Luxury Gemstone by Merkaba Beverly Hills
By Merkaba
Located in Beverly Hills, CA
19.17-Carat Rectangular Oval Ethiopian Opal – A Rare Treasure for Someone Special by Merkaba Jewelry Beverly Hills. A Rare Gem for Someone Very Special The 19.17-carat rectangular o...
Category

21st Century and Contemporary Ethiopian Contemporary USA - Loose Gemstones

Materials

Opal

Hand Carved Natural Orange-Red Coral Rose Ornament
Located in Pasadena, CA
This exquisite ornament features natural orange-red coral, intricately hand-carved into the shape of a blooming rose—an enduring symbol of beauty and love. It measures approximately ...
Category

1980s Taiwanese Artisan Vintage USA - Loose Gemstones

Materials

Coral

Natural Mandarine-Spessartite Garnet Gemstone 22.04 carats with Guild Report
Located in Los Angeles, CA
Discover the vivid glow of this 22.04-carat natural mandarine-spessartite garnet, a gem celebrated for its fiery dark orange color and exceptional clarity. Certified by the Guild Gem...
Category

21st Century and Contemporary Unknown USA - Loose Gemstones

Materials

Garnet

3 3/4 Radiant Orange-Yellow Sapphire GIA
Located in San Francisco, CA
This Radiant shape 3.76-carat Natural Orange-Yellow color sapphire GIA certified has been hand-selected by our experts for its top luster and unique color
Category

21st Century and Contemporary USA - Loose Gemstones

Materials

Yellow Sapphire

Natural Unheated Violetish Blue Brazilian Paraiba Tourmaline 0.80cts /GIA Report
Located in Los Angeles, CA
Experience the enchanting allure of this natural unheated Brazilian Paraiba tourmaline, weighing 0.80 carats. With its rare violetish blue hue, oval shape, and radiant modified brill...
Category

21st Century and Contemporary Brazilian USA - Loose Gemstones

Materials

Tourmaline, Paraiba

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 USA - Loose Gemstones

Materials

Diamond

3.22 Ct Blue Sapphire Oval Loose Gemstone
Located in Fort Lee, NJ
A highly precious September birthstone with a delighting blue color. They are believed to bring good luck & fortune to life. Explore vibrant collection of Emerald, Ruby & Sapphires ...
Category

2010s Sri Lankan USA - Loose Gemstones

Materials

Blue Sapphire

2.99 Ct Emerald Pear Loose Gemstone
Located in Fort Lee, NJ
With a vibrant green color hue, the birthstone for May is a symbol of renewed spring growth. Explore vibrant collection of Emerald, Ruby & Sapphires in our store available as a loo...
Category

2010s Zambian USA - Loose Gemstones

Materials

Emerald

Natural Unheated Yellow Sapphire Gemstone 8.55 carats with GIA Report
Located in Los Angeles, CA
Natural Unheated Yellow Sapphire yellow color cushion shape 8.55 carats with GIA Report Identification: Natural Yellow Sapphire • Carat: 8.55 carats • Shape: cushion • Measures: 10....
Category

21st Century and Contemporary Sri Lankan USA - Loose Gemstones

Materials

Yellow Sapphire

AGL Certified 8.11 Carat Australian Black Opal Vivid Blue Green N2-B4
Located in Chicago, IL
This pear-shape stunning Australian Black Opal displays a vivid Blue-Green Play-of-Color Phenomena in a unique Chaff and Harlequin Jigsaw pattern. This unique gem weighs 8.11ct and m...
Category

21st Century and Contemporary Australian Contemporary USA - Loose Gemstones

Materials

Opal, Black Opal

1.56 Ct Yellow Sapphire Heart Loose Gemstone
Located in Fort Lee, NJ
A highly precious September birthstone with a delighting yellow color. They are believed to bring good luck & fortune to life. Explore vibrant collection of Emerald, Ruby & Sapphire...
Category

2010s Sri Lankan USA - Loose Gemstones

Materials

Yellow Sapphire

Natural Unheated Red Mozambique Ruby Gemstone 1.32 carats with GIA Report
Located in Los Angeles, CA
Indulge in the timeless elegance of a 1.32 carats Mozambique Ruby, meticulously certified by GIA. Its cushion shape and brilliant/step cut epitomize sophistication, accentuating its ...
Category

21st Century and Contemporary Mozambican USA - Loose Gemstones

Materials

Ruby

1.02 Carat Pear Brilliant Gia Certified L Color Vs2 Clarity Diamond
Located in New York, NY
ITEM DESCRIPTION ID #: NYC56925 Stone Shape: PEAR MODIFIED BRILLIANT Diamond Weight: 1.02ct Clarity: VS2 Color: L Cut: Excellent Measurements: 8.32 x 6.24 x 2.40 mm Depth %: 38.5% Ta...
Category

15th Century and Earlier Antique USA - Loose Gemstones

Materials

White Diamond

1.35 Ct Blue Sapphire Marquise Loose Gemstone
Located in Fort Lee, NJ
A highly precious September birthstone with a delighting blue color. They are believed to bring good luck & fortune to life. Explore vibrant collection of Emerald, Ruby & Sapphires ...
Category

2010s Sri Lankan USA - Loose Gemstones

Materials

Blue Sapphire

10.74 Carat Loose Radiant Cut Light Green Emerald Gemstone
Located in Scottsdale, AZ
This extraordinary loose emerald, boasting a substantial weight of 10.74 carats, commands attention with its radiant cut, showcasing a symmetrical arrangement of facets that maximize...
Category

21st Century and Contemporary Unknown Contemporary USA - Loose Gemstones

Materials

Emerald, Green Beryl

2.14 Ct Ruby Oval Loose Gemstone
Located in Fort Lee, NJ
An exquisite red color birthstone for July, believed to convey a status of power & wealth. Explore vibrant collection of Emerald, Ruby & Sapphires in our store available as a loose ...
Category

2010s Malagasy USA - Loose Gemstones

Materials

Ruby

3.44 Ct Ruby Oval Loose Gemstone
Located in Fort Lee, NJ
An exquisite red color birthstone for July, believed to convey a status of power & wealth. Explore vibrant collection of Emerald, Ruby & Sapphires in our store available as a loose ...
Category

2010s Malagasy USA - Loose Gemstones

Materials

Ruby

6.08 carat GIA Fancy Yellow-Green Cushion Cut Diamond
By Rare Colors
Located in New York, NY
6.08 Carat Fancy Yellow-Green Cushion Cut SI1 Clarity Very Good + Very Good Cutting No Fluorescence GIA Certified Diamond At Rare Colors, you can experience the elegance of our exqu...
Category

2010s USA - Loose Gemstones

Materials

Diamond

Emerald-Cut Aquamarine – Perfect for Custom Jewelry and Sophisticated Collectors
By Merkaba
Located in Beverly Hills, CA
Collection Quality 4.08-Carat Emerald-Cut Aquamarine – Merkaba Jewelry Beverly Hills. Immerse yourself in the timeless beauty of this collection-quality 4.08-carat Emerald-Cut Aquam...
Category

21st Century and Contemporary Malagasy Contemporary USA - Loose Gemstones

Materials

Aquamarine, Beryl

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