20 cts Paraiba Color Tourmaline Oval Shape Flat Cabochon for Pendant Jewellery
Located in Peshawar, PK
Gemstone Details: Tourmaline Cabochon Weight 20 carats Dimension 23 x 13.5 x 7.15 mm Color Paraiba Shade Blue Origin Nuristan, Afghanistan Treatment None Shape and Cut Oval Sha...
Tourmaline
14 cts Paraiba Shade Tourmaline Teardrop Shape Flat Cabochon for Pendant Jewelry
Located in Peshawar, PK
Gemstone Details: Tourmaline cabochon Weight 14.7 carats Dimension 22 x 13.1 x 6.2 mm Origin Nuristan, Afghanistan Treatment None Shape and Cut Teardrop Transparency Transpare...
Tourmaline
Opal Ethiopian 13.09Ct natural gemstone, Ethiopia, GFCO certified
By GRALJEWELRY
Located in Dublin, D
Natural Ethiopian Opal gemstone GFCO certified Gemstone Color: White Multicolor Gemstone Type: Opal Gemstone size: 20.07x17.39x8.46mm Cut Grade: Very Good Gemstone Shape: Oval Caboc...
Opal
Amethyst Cabochon Cts 173.18 and Citrine Oval Cabochons Cts 167.82
Located in Hong Kong, HK
This exquisite collection features an Amethyst cabochon weighing 173.18 carats and Citrine oval cabochons totaling 167.82 carats, both sourced from the renowned gemstone mines of Bra...
Amethyst, Citrine
GIA CERTIFIED Natural Blue Turquoise Oval Cabochon Cut GIA-2191276494
Located in Miami, FL
GIA certified oval cabochon cut blue turquoise. This is an exceptional natural blue turquoise weighing 10.69 carats, displaying remarkable quality and fashioned in an elegant oval c...
Turquoise
Imperial 4.78ct GIA Certified Color-Change Alexandrite Oval Double Cabochon
Located in רמת גן, IL
Prepare to be absolutely spellbound by this spicy 4.78ct Natural Chrysoberyl that’s serving pure, unadulterated magic in every light. This persuasive powerhouse pulls off a high-fash...
Alexandrite
Mesmerizing 4.89ct GIA Certified Color-Change Alexandrite Oval Double Cabochon
Located in רמת גן, IL
Prepare to dominate the room with this massive, spicy 4.89ct Natural Chrysoberyl that is basically a high-fashion mood ring for the elite. This persuasive powerhouse pulls off a lite...
Alexandrite
Magical 2.78ct GIA Certified Color-Change Alexandrite Oval Double Cabochon
Located in רמת גן, IL
Get ready to experience a literal magic trick in the palm of your hand with this spicy 2.78ct Natural Chrysoberyl. A persuasive master of transformation, this rare oval double caboch...
Alexandrite
54.83 Carat Burmese Red Spinel Cabochon for Fine Jewelry
Located in Jaipur, RJ
54.83 Carat Burmese Red Spinel Cabochon for Fine Jewelry NO HEAT NO TREATMENT 1 Piece Weight - 54.83 Ct Size - 25 mm
Spinel
$8,800Sale Price|20% Off
World 1st biggest size Hauyne stone 6.72ct GIA certificate cabochon collection
Located in bangkok, TH
This biggest Hauyne gemstone , GIA certificate, for collection . Cabochon with some natural crack inclusion, perfect cut shape, no more then 1 ct facet Hauyne stone can be find , m...
Other
Collection of Aquamarine, Tourmaline & Kunzite Stones Cabochon Stones 243 tcw
Located in Cincinnati, OH
18 beautiful, oval cabochon loose stones in this collection. Could be used individually or together in rings, necklaces, earrings, etc. Lots of possibilities!! 6 oval Aquamarine 16...
Aquamarine, Kunzite, Tourmaline
GIA Certified Natural 3.55 Ct., Dark Purple Star Spinel gemstone.
By GRALJEWELRY
Located in Dublin, D
Natural Star Spinel Loose gemstone Laboratory certified GIA Gemstone Color: Dark Purple Gemstone Type: Spinel Gemstone size: 8.26x7.44x5.3 mm Cut Grade: Excellent Gemstone Shape: Ca...
Spinel
CERTIFIED Australian Precious Opal Oval Cabochon Cut 4.67 Carats AGL-1127038
Located in Miami, FL
Certified oval shaped Australian Precious Opal. This is a very beautiful natural Australian Precious Opal of 4.67 carats, with remarkable quality, fashioned in an elegant oval caboc...
Opal
GIA CERTIFIED Natural Coral Huge Round Cabochon Cut 46.95 Carats GIA-2215188171
Located in Miami, FL
GIA certified round cabochon cut Italian coral. An exceptionally rare and impressive natural Italian coral weighing 46.95 carats, this remarkable gemstone exhibits outstanding quali...
Coral
$920Sale Price|20% Off
16.26ct. Certified Fire Opal Cabochon
Located in Crescent City, IL
Beautiful 16.26ct. 22.98 x 14.06 x 10.53 mm. pear-shaped fire opal cabochon. Translucent body with vivid flashes of green, yellow, orange, pink and subtle blue. Smooth polished surfa...
Fire Opal
$208,000Sale Price|20% Off
GIA Certificate Unheated Brazil Paraiba cabochon pair 20 Ct Size for collection
Located in bangkok, TH
GG11: GIA Unheated Brazil Paraiba cabochon pair 20 Ct Size for collection GEM DESCRIPTION Species: Natural Tourmaline Variety: Natural Paraiba cabochon Weight: 20 Carats Color...
Paraiba
Natural Star Purple Sapphire Gemstone 6.40 carats / JupiterGem
Located in Los Angeles, CA
Discover the enchanting beauty of this natural star purple sapphire, weighing 6.40 carats. This remarkable gemstone showcases a stunning star effect, making it a truly unique piece f...
Sapphire, Purple Sapphire
$3,198Sale Price|20% Off
GIA CERTIFIED Natural Purple Star Sapphire Cabochon Cut 35.48 Carats 2215188168
Located in Miami, FL
GIA certified oval cabochon cut huge purple star sapphire. A fine and huge natural not-heated Purple Star-Sapphire weighing 35.48 carats, this exceptional gemstone displays remarkab...
Purple Sapphire, Star Sapphire
80.28 Carat Burmese Spinel Cabochon Plain for Fine Jewellery Natural Gems
Located in Jaipur, RJ
80.28 Carat Burmese Spinel Cabochon Plain for Fine Jewellery Natural Gems Gemstone - Spinel Weight - 80.28 Ct Size - 7x8 To 10.5x13.5 MM Piece - 13
Spinel
4.80 Carats Natural Sugarloaf Indicolite Tourmaline Cabochon Ring Gem
Located in Peshawar, PK
Indicolite Tourmaline Weight: 4.80 Carats Dimension: 9.7x8.2x7.6 Mm Origin: Kunar Afghanistan Shape: Sugarloaf Treatment: Non Color: Blue Indicolite, a mesmerizing variety of tour...
Tourmaline, Indicolite
0.19 Ct ICA Certified Natural Red Beryl Bixbite Red Emerald Gemstone
Located in bangkok, TH
RE27 0.19ct ICA Certified Natural Red beryl bixbite Red Emerald Gemstone GEM DESCRIPTION Species: Natural Red Beryl Variety: Natural Emerald Weight: 0.19ct Color: Red Clarity: Eye...
Beryl
23.97 Carats Top Quality Rubellite Tourmaline Cabochon Sugarloaf Natural Gem
Located in Jaipur, RJ
This is a one of a kind of rubellite tourmaline. Gemstone - Rubellite Tourmaline Weight - 23.97 Ct Size - 15.4x13.14 MM Piece - 1
Rubelite, Tourmaline
60.23 Carats Top Colombian Emerald Carved Cabochon For Jewelry Natural Gems
Located in Jaipur, RJ
60.23 Carats Top Colombian Emerald Carved Cabochon For Jewelry Natural Gems Gemstone - Emerald Weight - 60.23 carats Shape - Carved Cabochon Quantity - 12 Pieces
Emerald
Natural Purple Jadiete Jade Gemstone 47.97 carats with GIA Report
Located in Los Angeles, CA
Discover the serene elegance of this natural purple jadeite jade, weighing an impressive 47.97 carats. With its smooth double cabochon cut and rich lavender hue, this exceptional gem...
Jade
GIL Certified 2.79 Carat Natural Sugarloaf Mahenge Spinel Cabochon From Tanzania
Located in Peshawar, PK
Mahenge Spinel Sugarloaf Cabochon Weight: 2.79 Carat Dimension: 8.04 x 7.70 x 4.83 Mm Colour: Reddish Pink Origin: Mahenge Tanzania Treatment: Non Cut: Sugarloaf Cabochon Certificat...
Spinel
15.71 Carat Burmese Top Quality Spinel Cabochon for Fine Jewellery Natural Gems
Located in Jaipur, RJ
15.71 Carat Burmese Top Quality Spinel Cabochon for Fine Jewellery Natural Gems Piece - 1 Weight - 15.71 Ct Size - 12.8x14.4 mm Shape - Cabochon
Spinel
3.75ct Natural Earth Cabuchon Zambian Emerald Gemstone Green Color GWLab Cert
Located in New York, NY
Retail Price - $10,000 Item Stock Number - EM874633232672 Shape - Cabuchon Carat Weight - 3.75ct Measurements - 11.45 x 8.48 x 5.65 Color - Green Treatment - Minor Origin - Zambia
Emerald
8.08ct Natural Earth Oval Cab Colombian Emerald Gemstone Green Color Cabuchon
Located in New York, NY
Retail Price - $13,000 Item Stock Number - EM874633232671 Shape - Oval, Cabuchon Carat Weight - 8.08ct Measurements - 13.28 x 11.00 x 7.29 Color - Colombian Green Cut Grade - Colombia
Emerald
Zaffiro Naturale Non Trattato Non Riscaldato Taglio Cabochon Blu Scuro 10.12 Ctw
Located in Milano, IT
Zaffiro blu taglio cabochon biconvesso ovale di 10.12 carati, non trattato non riscaldato Blu scuro trasparente. Certificato gemmologico "Istituto Gemmologico Italiano" n. 55006. Vis...
Blue Sapphire
$256Sale Price / item|20% Off
27.10 Carat Natural Amethyst Cabochon Earth Mine Brazil for Jewelry Making
Located in Peshawar, PK
Gemstone Type : Amethyst Weight : 27.10 Carats Dimensions: 20x16.3x11.1 mm Clarity : Clean Origin : Brazil Color: Purple Shape: Ova Cab Facet: Cabochon Certificate: On Demand Month: ...
Amethyst
5.18ct Natural Earth Pear Cab Colombian Emerald Gemstone Green Color GRS Certed
Located in New York, NY
Gemstone INFORMATION Retail Price - $35,000 Item Stock Number - EM64367485474 Certificate Number - GRS - 2024-048167 Shape - Cabuchon Pear Carat Weight - 5.18ct Measurements - 11.85...
Emerald
Natural Unheated Pink Star Sapphire Gemstone 3.53 carats with GIA Report
Located in Los Angeles, CA
A rare and enchanting 3.53-carat pink star sapphire, displaying the mesmerizing phenomenon of asterism, where a star-like pattern gracefully shimmers across its surface under light. ...
Star Sapphire
7.05 Carats Blue Sapphire No-Heated Natural Plain Fancy Cabochon For Jewelry Gem
Located in Jaipur, RJ
7.05 Carats Blue Sapphire No-Heated Natural Plain Fancy Cabochon For Jewelry Gem Gemstone: Blue Sapphire No Heated Type : Sapphire Shape: cabochon Fancy Carat weight: 7.05 Carats Si...
Blue Sapphire
Pear-Shaped Citrine Cabochons Cts 219.40
Located in Hong Kong, HK
This stunning Citrine pear-shaped cabochon collection weighs a total of 219.40 carats, sourced from the famous gemstone mines of Brazil. Known for its warm golden to amber hues, Ci...
Citrine
Pear-Shaped Citrine Cabochons Cts 169.53
Located in Hong Kong, HK
These exquisite Citrine pear-shaped cabochons weigh a total of 169.53 carats and are sourced from the renowned gemstone mines of Brazil. Citrine is known for its warm, golden hues,...
Citrine
IGI Certified 10.40ct Cushion Cabochon Tourmaline
Located in רמת גן, IL
IGI Certified 10.40ct Cushion Cabochon Tourmaline Radiating charm and rarity, this 10.40ct cushion-cut tourmaline is a stunning example of natural beauty. Its captivating transition...
Tourmaline
11 Ruby Heart Cabochons Cts 9.17
Located in Hong Kong, HK
A symbol of love and passion, these 11 ruby heart-shaped cabochons radiate a deep, fiery red hue that captures the essence of romance. Sourced from Myanmar, these natural rubies ar...
Ruby
$680Sale Price|43% Off
14.52 Carats Natural Rhodonite of Brazil Red Color Rare Size Gemstone
Located in bangkok, TH
RDA02 Collection Size Rare Natural Rhodonite Brazil Untreated Perfect and beautiful shape Name : Natural Rhodonite Weight : 14.52 carats Color : Red Clarity : Clean clarity Shape:...
Other
Vibrant 4.38ct Natural Blue Chalcedony Marquise Cabochon
Located in רמת גן, IL
This exquisite collector's gemstone features a 4.38ct natural blue chalcedony, masterfully shaped into an elegant marquise cabochon. The gem radiates a tranquil, sky-blue hue with a ...
Chalcedony
Aquamarine 77.51 Carats Oval Cab Top Quality For Fine Jewelry Natural Gemstone
Located in Jaipur, RJ
Aquamarine 77.51 Carats Oval Cab Top Quality For Fine Jewelry Natural Gemstone Gemstone - Aquamarine Weight: 77.51 Carats Size: 30x25x13 MM Pieces:1
Aquamarine
Enchanting 2.65ct Natural Black Opal Oval Cabochon
Located in רמת גן, IL
This captivating collector's gemstone features a 2.65ct natural opal, masterfully finished into a classic oval cabochon that showcases a dramatic and mysterious aesthetic. Verified b...
Opal
25 Oval-Shaped Citrine Cabochons Cts 334.95
Located in Hong Kong, HK
This set includes 25 beautiful Citrine oval cabochons, weighing a total of 334.95 carats. These gems come from Brazil, known for producing some of the finest Citrines in the world. ...
Citrine
16.93 Carat Burmese Spinel Tumbled Plain No-Heat Fine Jewelry Natural Gemstone
Located in Jaipur, RJ
16.93 Carat Burmese Spinel Tumbled Plain No-Heat Fine Jewelry Natural Gemstone Gemstone - Spinel Weight - 16.93 carats Size - 21x13x6 MM Piece - 1 Shape - Tumbled
Spinel
17.24 Carat Burmese Spinel Tumbled Plain No-Heat Fine Jewelry Natural Gemstone
Located in Jaipur, RJ
17.24 Carat Burmese Spinel Tumbled Plain No-Heat Fine Jewelry Natural Gemstone Gemstone - Spinel Weight - 17.24 Size - 21x15 MM Piece - 1 Shape - Tumbled
Spinel
Sapphire, Ruby, and Emerald Cabochons Cts 39.54
Located in Hong Kong, HK
This exquisite collection of 80 sapphire, ruby, and emerald cabochons, totaling 39.54 carats. These gems, sourced from Burma and Zambia, radiate timeless beauty and sophistication....
Emerald, Ruby, Sapphire
140.00 Carats Bi Color Tourmaline Carving For Fine Jewelry Natural Gemstone
Located in Jaipur, RJ
Gemstone - Bi Color Tourmaline Weight- 140.00 Carats Shape - Carving Size - 31x28 MM Pieces - 1
Tourmaline
5 Oval-Shaped Citrine Cabochons Cts 252.70
Located in Hong Kong, HK
This collection features five stunning Citrine oval cabochons with a combined weight of 252.70 carats. Sourced from Brazil, these gems exhibit a beautiful golden glow, symbolizing ...
Citrine
Natural Green Cat's Eye Demantoid Garnet Gemstone 5.41 carats with GIA Report
Located in Los Angeles, CA
The flawless Cat's Eye Demantoid Garnet that has been cut to reveal a fine, sharp chatoyant band is filled with an overall green color. A popular gem representing peace and compassio...
Garnet
$2,080Sale Price|20% Off
2.61 Ct GIT Certificate Unheated star ruby Burma gemstone Red color No heat
Located in bangkok, TH
RMA114~ 2.61 Ct GIT Certificate Natural star ruby Burma gemstone Red color eye clean clarity GIT Star Ruby Burma Weight 2.61ct Clarity : Eye clean Origin : Burma Color : Red Star : ...
Ruby, Star Ruby
23.88 Carat Burmese Ruby Tumbled Plain No-Heat Top Fine Jewelry Natural Gemstone
Located in Jaipur, RJ
23.88 Carat Burmese Ruby Tumbled Plain No-Heat Top Fine Jewelry Natural Gemstone Gemstone - Ruby Weight - 23.88 Size - 20x12 MM Piece - 1 Shape - Tumbled
Ruby
GIA Certified 53.64ct Oval Carved Double Cabochon Emerald, Green
Located in New York, NY
An oval carved double-sided cabochon emerald weighing 53.64 carats, certified by GIA (Gemological Institute of America), can be considered rare and valuable Comments: Due to their gr...
Emerald
4.41 Ct Pair GIA Certificate Natural Brazil Paraiba Tourmaline Cabochon
Located in bangkok, TH
PRC26 4.41 Ct GIA Certificate Natural Brazil Paraiba Tourmaline cabochon Gemstone GEM DESCRIPTION Species: Natural Tourmaline Variety: Natural Paraiba brazil Weight: 4.41 Ct Col...
Paraiba
$23,256Sale Price / item|20% Off
Art Deco 31.55ct Colombian Emerald Cabochon, GIA Certified, 1990
Located in Palm Desert, CA
This exceptional loose emerald is a stunning 31.55-carat natural beryl, certified by the Gemological Institute of America (Report #2235423324, dated October 29, 2024).
Emerald
$11,000 / set
7.69 Carats Emerald Drops Cabochon Cut CD Certified
By FERRUCCI
Located in New York, NY
7.69 carats Emerald Drops Cabochon Cut CD Certified Matching Cabochon pair of Emerald Drops ready to create an exquisite design
Emerald
Carved Oval and Heart-Shaped Sapphire Cabochons Cts 14.93
Located in Hong Kong, HK
Love and devotion are celebrated in these sapphire cabs. The heart-shaped cabochon is adorned with the timeless message "I love you," while the oval cabochon features delicate hear...
Sapphire
$1,600Sale Price|20% Off
Rare ruby oval cabochon pair matching pair 8.8mm
Located in Jupiter, FL
Rare matching pair of rubies, untreated and certified. NATURAL GEMSTONE(S): NATURAL RUBY Clarity/Color: Slightly Included/Pinkish Red Cut: Rectangular 8.8x7mm Treatment: none (heat...
Ruby
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...
Sapphire, Blue Sapphire
Are you shopping for diamonds and other loose gemstones to create your own custom jewelry?
Why might you purchase a diamond or gemstone “loose” — that is, on its own, not mounted in a piece of jewelry? Perhaps you’re a connoisseur looking to acquire a unique investment. The scarcity of high-quality colored diamonds, for instance, especially pink diamonds, means that their value increases over time; the same is true of rare Kashmir sapphires and Burmese rubies. Far rarer than diamonds, Paraiba tourmaline, discovered only in the 1980s, is treasured as much for its extraordinary color as its scarcity, both of which contribute to its high value.
A more common scenario would be that you’re hoping to create a very special piece of custom jewelry, such as an engagement ring or a milestone-birthday present, and want to personally select the most beautiful, unusual, or ultra-rare stone you can find and afford. Doing so adds to the romance and substance of the gift and can be a part of the story told as the jewel is passed from generation to generation.
If this sounds like you, read on for tips on becoming one of the world’s savviest gem hunters.
Educate yourself: When buying any piece of gem-set fine jewelry, you should familiarize yourself with the factors that determine a stone’s price. This will enable you to streamline your search for the perfect gem and have intelligent, productive conversations with sellers.
There is a wealth of information online, such as our diamond-buying guide and this overview of colored gemstones for engagement rings. The buying guides of the Gemological Institute of America (GIA), searchable by stone type, are also a widely trusted source for consumers venturing into the world of diamonds and gems for the first time.
Vet your vendor: If you peruse 1stDibs with any regularity, you know there is no shortage of vendors who deal in top-quality loose gemstones. (Read about our vetted sellers.) Finding a trustworthy, established dealer may be as easy as getting a recommendation from friends or family. And, although it may sound obvious, it pays to Google your candidates — and consult customer reviews — before making contact.
Harakh Mehta, designer and founder of the Mumbai, India–based fine-jewelry brand Harakh, has an innate understanding of proper client relations, especially when the customer is in unfamiliar territory. “Start chatting with the dealer, get to know them better," he says. "It’s very important to establish a comfort level. We never push a sale, as we want it to be a carefully considered purchase. So, if the client is not in a rush, we do it over a few virtual meetings or phone calls.”
Request documentation: The best dealers go to great lengths to furnish clients with documents verifying the quality rating, natural origin and provenance of a stone — showing, for example, that loose emerald hails from the famous Muzo mine in Colombia — and disclosing any treatments applied to enhance its appearance. (And who doesn't love emerald jewelry? The most valuable emeralds are the ones that have a deep bluish-green to true green color and no visible inclusions.)
If no grading report is available for a stone you are interested in, the dealer should be able to provide an authenticity document, such as an appraisal or info sheet, that has been signed by an in-house gemologist or professional appraiser. Google those names, too, for extra peace of mind.
Ask for videos and visuals: When transacting with a gem dealer online, you should always request real-time videos and photographs, since professional photos of a stone, usually on a white background, have likely been retouched for optimal presentation.
Read more about how to buy loose gemstones and find your dream gems today on 1stDibs.