Connecticut - Loose Gemstones
to
4
8
4
3
3
2
to
17
4
4
1
1
28
28
27
1
1
3,508
383
8
1
1
Item Ships From: Connecticut
GIA Certified 5.01 Carat Oval Cut D-IF Diamond Loose Gemstone
Located in Trumbull, CT
A GIA certified 5.01-carat, D color, IF (Internally Flawless) clarity Oval cut loose diamond. Set it in your custom-designed jewelry for an extraordinary piece.
Measurement: 14.82 x...
Category
21st Century and Contemporary Connecticut - Loose Gemstones
Materials
Diamond
Lightning Ridge Natural Black Opal
By Faye Kim
Located in Darien, CT
Spectacular in color and shape and exhibiting a stunning range of colors, this 2.80 carat natural black opal is a gem-quality stone for the avid collector or jewelry lover.
Unlike ordinary opals, black opals have carbon and iron oxide trace elements present, which cause the unusual darkness of the stone. Because of their dark body tone, the rainbow colors in a black opal truly stand out.
The stone's mesmerizing blue, green and golden hues render it ideal for creating a truly one of a kind statement ring, bracelet, necklace, or pendant. Let us help you design your own signature piece. For inspiration, see some of the opal pieces Faye Kim has created in the attached photos. The designer will work with you to create your own spectacular, one-of-a-kind piece using this Lightning Ridge...
Category
21st Century and Contemporary Australian Connecticut - Loose Gemstones
Materials
Opal, Black Opal
2.10 Carat Oval Shape Natural Red Spinel Loose Gemstone
Located in Trumbull, CT
This 2.10 carat oval shape natural red spinel loose gemstone is carefully hand cut and hand polished by skilled artisans. This lustrous loose...
Category
21st Century and Contemporary Artisan Connecticut - Loose Gemstones
Materials
Spinel
GIA Certified 67.75 Carat Natural Quartz Citrine Oval Loose Gemstone
Located in Trumbull, CT
This GIA certified 67.75 Carat Natural Quartz Citrine Oval loose gemstone has modified brilliant cut. It has yellow-orange color and is transparent. Carefully hand cut and hand polis...
Category
21st Century and Contemporary South American Connecticut - Loose Gemstones
Materials
Citrine, Quartz
GIA Certified 28.37 Carat Imperial Precious Topaz Emerald Cut Loose Gemstone
Located in Stamford, CT
28.37ct Imperial precious Topaz. This GIA certified natural gemstone is unique in its color, orange/pink and is one of the most desirable preci...
Category
21st Century and Contemporary Connecticut - Loose Gemstones
Materials
Topaz
GIA Certified 25.04 Carat Natural Chrysoberyl Cat's Eye Loose Gemstone
Located in Stamford, CT
25.04ct GIA certified Chrysoberyl Cat's Eye. Well polished, with a strong eye. It's no common for a Chrysoberyl to form over 15.00 carats, making this a unique gemstone perfect for a...
Category
21st Century and Contemporary Connecticut - Loose Gemstones
Materials
Chrysoberyl
6.17 Carat Pink Cushion Cut Tourmaline Loose Gemstone
Located in Stamford, CT
Cushion cut 6.17ct. pink tourmaline from Afghanistan. Bi-color pink with white that shows at the edges of the stone when it is rotated. Photographs can not capture the actual brilliance of this gemstone.
1 Cushion cut tourmaline...
Category
21st Century and Contemporary Connecticut - Loose Gemstones
Materials
Tourmaline
11.90 Carat Emerald Cut Garnet Loose Gemstone
Located in Trumbull, CT
Set of six pieces emerald cut garnet is natural gemstone which is hand cut and polished. No inclusion and very transparent in color! Make your dream come true by creating this brilli...
Category
21st Century and Contemporary Asian Connecticut - Loose Gemstones
Materials
Garnet
72.30 Carat Oval Shape Natural Opal Loose Gemstone
Located in Trumbull, CT
This 72.30 carat oval shape natural opal loose gemstone has phenomenal display of fire. This huge gemstone can be made into a stunning piece of jewelry according to your choice.
Size...
Category
21st Century and Contemporary Connecticut - Loose Gemstones
Materials
Opal
7.47 Carat Light Mint Green Loose Gem Cushion Cut Tourmaline
Located in Stamford, CT
Unique Custom cut, 7.47carat mint green Tourmaline. Excellent brilliance and lots of reflection. Gemstones can be hard to get the exact color in
1 cushion cut tourmaline, approx. t...
Category
21st Century and Contemporary Connecticut - Loose Gemstones
Materials
Tourmaline
2.0 Carat Oval Shape Natural Pink Spinel Loose Gemstone
Located in Trumbull, CT
This 2.0 carat oval shape natural pink spinel loose gemstone is carefully hand cut and hand polished by skilled artisans. This lustrous loose gemston...
Category
21st Century and Contemporary Asian Contemporary Connecticut - Loose Gemstones
Materials
Spinel
GIA Certified 5.94 Carat Oval Shape Natural Pink Purple Sapphire Loose Gemstone
Located in Trumbull, CT
GIA certified 5.94 carat oval shape natural pink purple sapphire is a truly breathtaking loose gemstone. Originated in East Africa and NO HEAT makes it a highly desirable piece. It i...
Category
21st Century and Contemporary African Artisan Connecticut - Loose Gemstones
Materials
Sapphire, Purple Sapphire
2.20 Carat Emerald Cut Pink Tourmaline Loose Gemstone
Located in Trumbull, CT
This emerald cut pink tourmaline is a natural gemstone which is hand cut and polished. Make your dream come true by creating this brilliant gemstone into your desired piece of jewelr...
Category
21st Century and Contemporary African Connecticut - Loose Gemstones
Materials
Tourmaline
2.20 Carat Cushion Cut Green Tourmaline Loose Gemstone
Located in Trumbull, CT
This cushion cut olive green tourmaline is a natural gemstone which is hand cut and polished. Make your dream come true by creating this brilliant gemstone into your desired piece of...
Category
21st Century and Contemporary Congolese Connecticut - Loose Gemstones
Materials
Tourmaline
2.10 Carat Oval Cut Sphene Loose Gemstone
Located in Trumbull, CT
This oval shape sphene is a natural gemstone which is hand cut and polished. It is named after the Greek word "Sphenos". Sphene is a powerful stone that enhances and accelerates lear...
Category
21st Century and Contemporary Malagasy Connecticut - Loose Gemstones
Materials
Other
2.30 Carat Oval Cut Tourmaline Loose Gemstone
Located in Trumbull, CT
This oval cut olive green tourmaline is a natural gemstone which is hand cut and polished. Make your dream come true by creating this brilliant gemstone into your desired piece of je...
Category
21st Century and Contemporary African Connecticut - Loose Gemstones
Materials
Tourmaline
8.22 Carat Oval Cut Natural Rubellite Loose Gemstone
Located in Trumbull, CT
8.22-carat oval-cut rubellite loose gemstone, showcasing a stunning pink hue with a radiant luster. This natural, ethically sourced gemstone is expertly hand-cut and polished. Perfec...
Category
21st Century and Contemporary Brazilian Artisan Connecticut - Loose Gemstones
Materials
Rubelite
5.20 Carat Natural Cushion Cut No Heat Loose Violet Blue Sapphire Gemstone
Located in Stamford, CT
1920's AGL certified natural old style cushion cut sapphire. Large surface area with excellent brilliance. Certified by the AGL as natural, no heat, no enhancements. Bright face up a...
Category
21st Century and Contemporary Connecticut - Loose Gemstones
Materials
Sapphire, Blue Sapphire, Purple Sapphire
2.00 Carat Cushion Cut Green Tourmaline Loose Gemstone
Located in Trumbull, CT
This cushion cut olive green tourmaline is a natural gemstone which is hand cut and polished. Make your dream come true by creating this brilliant gemstone into your desired piece of...
Category
21st Century and Contemporary Congolese Connecticut - Loose Gemstones
Materials
Tourmaline
1.6 Carat Oval Shape Natural Violet Spinel Loose Gemstone
Located in Trumbull, CT
This 1.6 carat oval shape natural violet spinel loose gemstone is carefully hand cut and hand polished by skilled artisans. This lustrous loose gemstone c...
Category
21st Century and Contemporary Artisan Connecticut - Loose Gemstones
Materials
Spinel
3.00 Carat Oval Cut Spessartite Loose Gemstone
Located in Trumbull, CT
This oval shape spessartite has vivid orange color with uniform color distribution. It is a natural gemstone which is hand cut and polished. Make your dream come true by creating thi...
Category
21st Century and Contemporary Asian Connecticut - Loose Gemstones
Materials
Mandarin Garnet
3.75 Carat Oval Cut Paraiba Tourmaline Loose Gemstone
Located in Trumbull, CT
This oval cut Paraiba Tourmaline is a natural gemstone which is hand cut and polished. Make your dream come true by creating this brilliant gemstone into your desired piece of jewelr...
Category
21st Century and Contemporary Mozambican Connecticut - Loose Gemstones
Materials
Tourmaline, Paraiba
8.22 Carat Pear Cut Natural Rubellite Loose Gemstone
Located in Trumbull, CT
8.22 carat pear-cut rubellite loose gemstone, showcasing a stunning pink hue with a radiant luster. This natural, ethically sourced gemstone is expertly hand-cut and polished. Perfec...
Category
21st Century and Contemporary Brazilian Artisan Connecticut - Loose Gemstones
Materials
Rubelite
18.70 Carat Octagon Cut Rubellite Loose Gemstone
Located in Trumbull, CT
18.70-carat octagon-cut rubellite loose gemstone, showcasing a stunning pink hue with a radiant luster. This natural, ethically sourced gemstone is expertly hand-cut and polished. Pe...
Category
21st Century and Contemporary Brazilian Artisan Connecticut - Loose Gemstones
Materials
Rubelite
27.40 Carat Baguette Amethyst Loose Gemstone
Located in Trumbull, CT
Baguette -cut 13.32 mm X 25.32 mm Amethyst weighs 27.40 carat. This giant gemstone is eye-clean and is hand cut and polished. Turn this beautiful gemstone into stunning piece of je...
Category
21st Century and Contemporary North American Modern Connecticut - Loose Gemstones
Materials
Amethyst
Natural 7.90 Carat Oval Tourmaline Loose stone
Located in Trumbull, CT
This Hand cut and polished Very rare color of Tourmaline 7.90 carat is one-of-a-kind stone. This Stone can be used to make a pendant or nice ring with accents diamonds or without dia...
Category
2010s South American Artisan Connecticut - Loose Gemstones
Materials
Tourmaline
1.9 Carat Oval Shape Natural Indigo Spinel Loose Gemstone
Located in Trumbull, CT
This 1.9 carat oval shape natural indigo spinel loose gemstone is carefully hand cut and hand polished by skilled artisans. This lustrous loose gemstone c...
Category
21st Century and Contemporary Artisan Connecticut - Loose Gemstones
Materials
Spinel
4.64 Carat Oval Loose Blue Sapphire Gemstone
Located in Stamford, CT
GIA certified no heat, no enhancements oval blue 4.64cts sapphire, raised crown and small table.
4.64ct oval brilliant cut sapphire. 10.55x8.54x5.55mm. GIA cert# 2165891601
Category
21st Century and Contemporary Connecticut - Loose Gemstones
Materials
Blue Sapphire
Related Items
1.65 Carat Natural Loose Blue Spinel Cushion Shape Gemstone
Located in Peshawar, PK
Faceted Blue Spinel
Weight : 1.65 Carat
Dimension: 7.2 x 6.8 x 4 Mm
Treatment: Non
Shape : Cushion
Colour: Blue
Spinel is a captivating gemstone prized for its brilliant colors an...
Category
21st Century and Contemporary Burmese Arts and Crafts Connecticut - Loose Gemstones
Materials
Spinel
2.10 Carat Natural Loose Green Blue Tourmaline Square Shape Gemstone
Located in Peshawar, PK
Faceted Green Blue Tourmaline
Weight: 2.10 Carat
Dimension: 6.8 x 6.8 x 5.9 Mm
Colour: Green Blue
Treatment: Non
Certificate: On Customer Demand
Shape: Square
Tourmaline is a ca...
Category
21st Century and Contemporary Afghan Arts and Crafts Connecticut - Loose Gemstones
Materials
Tourmaline
Flawless Imperial Topaz 11.40 carats Emerald Cut Loose Natural Pakistani Gem
Located in Bangkok, TH
Weight 11.40 carats
Dimensions 13 x 10.8 x 8.8 mm
Treatment None
Origin Pakistan
Clarity Eye Clean
Shape Octagon
Cut Emerald
Imperial topaz is known for its durability, making...
Category
21st Century and Contemporary Pakistani Modern Connecticut - Loose Gemstones
Materials
Topaz, Imperial Topaz
W 0.43 in D 0.35 in L 0.52 in
2.11 Carat Pink Sapphire Oval, Unset Loose Gemstone, GIA Certified
Located in Los Angeles, CA
This sapphire is an eye catching, vibrant purplish pink color measuring 9.09 x 6.70 x 3.39 millimeters and weighing 2.11 carats. This oval gem would make a lovely 3-stone or engageme...
Category
21st Century and Contemporary Unknown Artisan Connecticut - Loose Gemstones
Materials
Sapphire, Pink Sapphire
4.60 Carat Red Spinel Cushion, Loose Gemstone, GIA Certified
By Sarosi By Timeless Gems
Located in Los Angeles, CA
This cushion-cut fiery, deep red spinel measures 9.27 x 8.53 x 7.13 millimeters and weighs 4.60 carats. It has classic red spinel color and would look ...
Category
21st Century and Contemporary American Artisan Connecticut - Loose Gemstones
Materials
Spinel
Natural 2.75 Ct Australian green and pink black boulder opal mined by Sue Cooper
Located in BELCONNEN, ACT
This beautiful 2.75 Ct Australian boulder opal was mined by Sue Cooper at her Yaraka opal mine in western Queensland, Australia in 2024. Sue processed the rough opal herself and cut ...
Category
2010s Australian Connecticut - Loose Gemstones
Materials
Opal, Black Opal
W 0.33 in D 0.11 in L 0.58 in
Natural Untreated Premium Quality 2.43ct Australian Black Opal
By Renata Bernard
Located in Sydney, AU
Australia is the birthplace of the most beautiful precious opal gemstones in the world. Fine Australian opals mesmerise with colours changing and shifting the gem moves with an unrivalled vibrancy.
This opal was ethically sourced from Lightning Ridge mines in New South Wales. It is perfect for a bespoke ring or pendant. What makes Australian opal jewellery so alluring is that it guarantees that no one else will have the same piece. Each opal gem has a unique range of colours, pattern and colour-play. This particular gem displays a vivid blue-green play of colour.
Surprise yourself or your loved ones with this one-of-a-kind opal, a special gift, which can become an amazing piece of jewellery to cherish and admire forever. Opal Minded offers custom opal jewellery design services. On-site and remotely. We can make your opal jewellery dream come true, with a concept developed in partnership and refined by our award-winning Creative Director Renata Bernard.
PARTICULARS:
Size & Stone Measurements:
Opal weight: 2.43ct
Opal length: 13.56mm
Opal width: 7.97mm
Opal Thickness: 4.06mm
This unset opal...
Category
2010s Australian Contemporary Connecticut - Loose Gemstones
Materials
Opal, Black Opal
Natural Padparadscha Sapphire, .75 Carat Loose Gemstone, GIA Certified Unheated
By Sarosi By Timeless Gems
Located in Los Angeles, CA
This unheated petite padparadscha packs a punch with its unusually intense natural color. Padparadscha sapphires are highly coveted and prized for their unique and elegant blend of p...
Category
21st Century and Contemporary Artisan Connecticut - Loose Gemstones
Materials
Sapphire, Padparadscha Sapphire
3.11 Carat "Pigeon's Blood" Burmese Ruby Oval, Loose Gemstone, GIA Certified
By Sarosi By Timeless Gems
Located in Los Angeles, CA
This spectacular 3.11 carat Burmese beauty is the reason rubies are known as the king of gemstones. With rich, “Pigeon’s Blood” red color and excellent clarity, this vivid gem possesses a perfect balance of color and brilliance. It is extremely well cut and has well-proportioned depth, measuring 8.49 x 7.06 x 5.88 millimeters. Burma (also referred to as Myanmar) has long been revered as the premier source for fine rubies and this ruby is exemplary. Accompanied by Gemological Institute of America Origin Report #6157016196, this is a ruby for the ages!
Custom designs available. Please send us a message to schedule a complimentary design session.
Note: Internal characteristics and natural inclusions may appear magnified by photography.
We have a large selection of unmounted rubies...
Category
21st Century and Contemporary Burmese Artisan Connecticut - Loose Gemstones
Materials
Ruby
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 Connecticut - Loose Gemstones
Materials
Topaz, Imperial Topaz
W 0.64 in D 0.46 in L 0.83 in
Natural Untreated Premium Quality 2.16ct Australian Black Opal
By Renata Bernard
Located in Sydney, AU
Australia is the birthplace of the most beautiful precious opal gemstones in the world. Fine Australian opals mesmerise with colours changing and shifting the gem moves with an unrivalled vibrancy.
This opal was ethically sourced from Lightning Ridge mines in New South Wales. It is perfect for a bespoke ring or pendant. What makes Australian opal jewellery so alluring is that it guarantees that no one else will have the same piece. Each opal gem has a unique range of colours, patterns and colour-play. This particular gem displays a vivid red with a hint of blue and yellow play of colour.
Surprise yourself or your loved ones with this one-of-a-kind opal, a special gift, which can become an amazing piece of jewellery to cherish and admire forever. Opal Minded offers custom opal jewellery design services. On-site and remotely. We can make your opal jewellery dream come true, with a concept developed in partnership and refined by our award-winning Creative Director Renata Bernard.
PARTICULARS:
Size & Stone Measurements:
Opal Length: 10.36mm
Opal Width: 9.07mm
Opal weight: 2.16ct
This unset opal...
Category
2010s Australian Contemporary Connecticut - Loose Gemstones
Materials
Opal, Black Opal
7.38 Carat Black Opal Loose Gemstone Oval 16x12mm
Located in Columbus, OH
NNJ Designs presents a 7.38 carat loose Black Opal gemstone! Black Opal is often called the "king of opals". This gemstone would be perfect for the je...
Category
2010s American Connecticut - Loose Gemstones
Materials
Opal, Black Opal
Previously Available Items
19.37 Carat Corcoran Field Lightning Ridge Crystal Opal
By Faye Kim
Located in Darien, CT
Corcoran Field Lightning Ridge Crystal Opal
Spectacular in size, color, and shape and exhibiting a stunning range of colors, this 19.37 carat oval crystal opal is a gem-quality ston...
Category
21st Century and Contemporary Australian Connecticut - Loose Gemstones
Materials
Opal
Diamond Pendant GIA Certified 7.34 Carat Fancy Yellow
Located in Southbury, CT
A huge and firey GIA-certified 7.34-carat brilliant marquise-cur diamond pendant is a dazzling showstopper. Absolutely huge! And a natural (non-irradiated) fancy light yellow color! ...
Category
2010s American Modern Connecticut - Loose Gemstones
Materials
Diamond
Natural 4.81 Carat Emerald Cut Emerald 'Unset' Loose Gem
Located in Trumbull, CT
Natural Emerald cut 4.81ct Emerald loose gem has a deep green hue.
Ideal to set into a ring or a pendant according to one's choice
Category
21st Century and Contemporary Unknown Connecticut - Loose Gemstones
Materials
Emerald
19.37 Carat Corcoran Field Lightning Ridge Crystal Opal
By Faye Kim
Located in Darien, CT
Corcoran Field Lightning Ridge Crystal Opal
Spectacular in size, color, and shape and exhibiting a stunning range of colors, this 19.37 carat oval crystal opal is a gem-quality stone for the avid collector or jewelry lover. The stone's calming and mesmerizing hues render it ideal for creating a truly one of a kind statement ring, bracelet, necklace, or pendant/brooch. Let us help you design your own...
Category
21st Century and Contemporary Australian Connecticut - Loose Gemstones
Materials
Opal
Natural Blue Aquamarine 8.55 Carat unset Elongated Emerald Cut Gemstone
Located in Trumbull, CT
Elongated Emerald Cut Aquamarine in vivid blue color is a natural loose stone. This flawless hand cut and polished gem measures 24.42mm x 6.56mm ...
Category
21st Century and Contemporary Brazilian Connecticut - Loose Gemstones
Materials
Aquamarine
