Contemporary 37.30 Carats Round Ruby Cabochons, No Heat, Mozambique Origin
Located in Hong Kong, HK
These 101 round ruby cabochons, weighing a total of 37.30 carats and expertly sized at 4-5 mm each. No heat Burma Ruby Cabochones Sourced from Mozambique, these rubies showcase a r...
Ruby
$2,737Sale Price|25% Off
GIA Certified Natural Burma Ruby 3.59 Carats No Heat Carved Double Cabochon Gem
By OGI Ltd
Located in New York, NY
The carved double cabochon silhouette offers a sophisticated alternative to traditional faceted stones, making it especially appealing to collectors and lovers of artistic gemstone j...
Ruby
$108Sale Price|20% Off
12.78 carats Deep Green Natural Agate Pair Cabochon Cut from India
Located in Bangkok, TH
Weight 12.78 carats Dimensions 14.2x10.1x6.1 mm Treatment none Origin India Diaphaneity translucent Shape oval Cut cabochon This exquisite pair of deep green natural agate cab...
Agate
2.86 carat Natural Horsetail Inclusion Cabochon Cut Russian Demantoid Garnet
By Tsarina Jewels
Located in Bangkok, TH
The Ural Mountains of Russia have long been recognized as the most important and consistent source of the rarest variety of Garnets, known as Demantoid. These unique gemstones are hi...
Garnet
Natural Burmese Jadeite Cabochons, Icy Apple Green Gems Icy yellow Icy, Jewelry
Located in Kowloon, HK
A palette of spring dew and golden honey. Elevate your jewelry creations with this curated set of 3 Icy Jadeite Cabochons. Featuring a delicate blend of Pale Apple Green and warm H...
Jade
16.41 Carats Burmese Blue Sapphire No Heat Round cabochon Natural sapphire gem
Located in Jaipur, RJ
Burmese Blue Sapphire Round for Fine Jewellery Gemstone: Blue Sapphire No Heat Type : Burmese Shape: cabochon Carat weight: 16.41 Size - 10 To 12
Blue Sapphire
GIA Certified Natural 15.04CT Cat's-Eye Golden Beryl Round Cabochon Stone
Located in Vero Beach, FL
What a Rare Beauty!!!! Natural Cat’s-Eye Golden Beryl. Weight 15.04 Carats. Measurements: 15.19 – 15.61 x 9.46 m.m.. Gemological Institute of America Report #6204096583 Transpar...
Beryl
Green Granat Heart Necklace with Star Ruby Cabochon and Citrine Original Design
By Nicofilimon the Jewelry Designer
Located in Athens, GR
Green Heart - Nicofilimon 2021 in this One-Of-a-kind creation by Nicofilimon you have the privilege to choose one of the four variations of the design and it will by handcrafted espe...
Citrine, Ruby, Star Ruby
20.71 carats Zambian Emerald Shield Pair cabochon for fine Jewelry Natural Gems
Located in Jaipur, RJ
20.71 carats Zambian Emerald Shield Pair cabochon stone for fine Jewelry Natural Gem Weight: 20.71 Carats Size: 19x12x8 MM Pieces: 2 Shape: Shield
Emerald
23.48 Carat Natural Oval Cabochon Star Ruby GIA Certified No Heat With Ring Mold
Located in Carmel By The Sea, CA
This item is offered on consignment on behalf of a client; all serious and reasonable offers are presented for consideration, and we work diligently to achieve a mutually agreeable o...
Ruby, Star Ruby
98.90 Carats Bi Color Tourmaline Oval cabochon very good quality color variety
Located in Jaipur, RJ
Gemstone - Tourmaline bi color cabs Weight - 98.90 carats Shape - Oval Size - Size - 18x14 To 24x18 MM Quantity - 3 Piece
Tourmaline
Natural Australian Boulder Opal 7.48ct
Located in Nicosia, Cyprus
Details • Gemstone: Boulder Opal • Cut: oval/ cabochon • Weight: 7.48 ct • Origin: Australia • Treatment: No • Dimensions: 13x10x6.5 • Certificate: Not included ,Professionall...
Opal
GIA CERTIFIED Burmese Ruby No-Heat Intense Vivid Red 3.40 Carats GIA-1216189087
Located in Miami, FL
Certified oval shaped No-Heat Burmese vivid red ruby. This is a very rare and exceptional natural non-heated vivid red ruby of 3.40 carats, with remarkable quality, fashioned in an ...
Ruby
33 Ct Burma No heat Sapphire one layout set
Located in bangkok, TH
GG52: AA 33ct Natural Burma No heat sapphire one layout set Cabochon Cut Blue color Eye clean clarity
Sapphire
Natural Trapiche Colombian Emerald Suite 174.16 carats
Located in Los Angeles, CA
Discover an exceptional collection of natural Colombian trapiche emeralds totaling 174.16 carats. This remarkable suite features carefully selected cabochon-cut gemstones displaying ...
Emerald
1.57Ct ICA Certificate Natural Alexandrite Cat'eye gray green to purple orange
Located in bangkok, TH
AXA48 ICA Certificate Natural Alexandrite cat’eye gray green to purple orange color Srilanka Gemstone GEM ESCRIPTION Species: Natural Alexandrite Variety: Natural Alexandr...
Alexandrite
Watermelon tourmaline slice, 9.8 cts
Located in บางรัก, TH
Watermelon tourmaline slice sku196 Weight: 9.8 cts
Tourmaline
Natural Sri Lankan Cat's Eye Chrysoberyl 13.41 carats with GIA Report
Located in Los Angeles, CA
Natural Sri Lankan Cat’s Eye Chrysoberyl weighing 13.41 carats, measuring 14.45 x 9.87 x 9.04 mm. This exceptional gemstone exhibits a sharp, well-defined chatoyant “cat’s eye” effec...
Chrysoberyl
$2,970Sale Price|25% Off
GIA Certified Natural Burma Carved Sapphire 8.05 Carats No Indication of Heating
By OGI Ltd
Located in New York, NY
An exceptional and highly collectible GIA-certified natural Burma sapphire featuring a beautifully carved oval form, weighing an impressive 8.05 carats. This rare gemstone displays a...
Sapphire
$2,160Sale Price|20% Off
36.27 Ct ICA Certificate Unheated Ruby Mozambique Pinkish Red color No heat
Located in bangkok, TH
RA85 ICA certified Natural Ruby Unheated huge size collection Name : Natural Ruby Weight :36.27 Carats Size:19.18*15.12*12.57mm Color: Pinkish Red Clarity: Clean Origin: Mozambique ...
Ruby
19.75 cts, Pink tourmaline crystal slice, bi-color tourmaline
Located in บางรัก, TH
Pink tourmaline crystal slice, bi-color tourmaline sku197 Weight: 19.75 cts
Tourmaline, Crystal
$1,350Sale Price|25% Off
Colombian Crystallized Carved Emerald Leaf 22.73 Carats
Located in New York, NY
Showcasing exceptional artistry and natural beauty, this Colombian crystallized emerald is masterfully carved into an elegant leaf motif, weighing an impressive 22.73 carats and meas...
Emerald
$8,000 / set
22.35 carats, Zambian Bud Shape Cobochon Pair
Located in Hong Kong, HK
ntroducing a captivating pair of Zambian emerald cabochons, beautifully shaped like delicate buds, with a combined weight of 22.35 carats. These exquisite gems showcase the lush, vib...
Emerald
39.75 Carat No Heat Vivid Red Ruby Sugarloaf Pair
Located in Hong Kong, HK
39.75 Carat No Heat Vivid Red Ruby Sugarloaf Pair: A gorgeous and rare gem, it is a pair of natural unheated sugarloaf-cut vivid red rubies weighing 39.75 carat. Hailing from Tanzan...
Ruby
35.85 Carats Ceylon Blue Sapphire No Heat Cab for Fine Jewellery
Located in Jaipur, RJ
35.85 Carats Ceylon Blue sapphire No heat Cab For Fine Jewellery Gemstone: Blue Sapphire No Heat Type: Ceylon Shape: Round Carat weight: 35.85 Ceylon Blue sapphires are highly sou...
Blue Sapphire
30.32 Carat No-Heat Sugarloaf Sapphire piece
Located in Bangkok, TH
A massive and breathtaking 30.32 Carat Sapphire, resplendent in a cornflower blue hue. It hails from the enchanting gem mines of Sri Lanka. This exquisite gem hasn't undergone any fo...
Sapphire
$4,160Sale Price|20% Off
4.61 Ct ICA and Guild Two Certification Alexandrite Cat’s eye Rare size
Located in bangkok, TH
AXA29~ 4.61 Ct ICA and Guild Two Certification alexandrite Cat’s eye Rare size Clean quality Sharp Line Species: Alexandrite Variety: Alexandrine Cat’Eye Weight: 4.61 Ct Colo...
Alexandrite
$560Sale Price|20% Off
7.22 Ct ICA certificate Natural Aquamarine Cat’s eye eye clean Quality
Located in bangkok, TH
AQA98 7.22ct ICA certificate Natural Aquamarine Cat’s eye eye clean Quality Species: Natural Beryl Variety: Natural Aquamarine Cat’s-eye weight: 7.22 Ct Color: 3-4A Cut : cabocho...
Aquamarine, Cat’s Eye
Natural 3.53 Australian pink and green boulder opal mined by Sue Cooper
Located in BELCONNEN, ACT
This lovely 3.53 Ct Australian boulder opal was mined by Sue Cooper at her Yaraka opal mine in western Queensland, Australia in 2022. Sue processed the rough opal herself and cut int...
Opal
Certified Natural Green Jadeite Carvings Matched Pair (Untreated Type A Jadeite)
Located in New York, NY
A refined and highly collectible pair of natural green jadeite carvings, offered loose and unset, showcasing the purity and integrity prized in fine jade. These stones are certified ...
Jade
$1,040Sale Price|20% Off
2.31 Ct ICA Certificate Unheated Star Ruby Burma transparent Pinkish red No heat
Located in bangkok, TH
RMA115～ 2.31 Ct ICA Certificate Natural Star Ruby unheated Burma transparent Pinkish red Gemstone GEM DESCRIPTION: Species: Natural Corundum Variety: Natural Star Ruby unheated Weig...
Ruby, Star Ruby
Natural Sapphire – 3.10 ct
Located in Berlin, BE
Natural Sapphire – 3.10 ct A natural cabochon-cut sapphire weighing 3.10 ct.
Sapphire
Designer Nikabell 120 Cts Zambian Emerald & Diamond Tiara in 18k Gold
Located in New Delhi, Delhi
Surprisingly exquisite emeralds and diamonds crown fit for royalty! This stunning piece of jewelry is a true masterpiece, crafted with the finest materials and designed with exceptio...
Diamond, Emerald, 18k Gold
$306Sale Price|33% Off
Ethiopian Opal Pair total 5 ct 12 mm x 10 mm AAA+ Great Fire Create your Earring
Located in Viena, Viena
this pair of very fine Ethiopian opal cabochons can be a amazing jewelry, 2 opal with 12 x 10 mm, 4,5 mm deep, AAA+, oval, color white with a firework of red, green and blue hushes, ...
Opal
Natural 4.37 Ct Australian ocean-coloured boulder opal mined by Sue Cooper
Located in BELCONNEN, ACT
This pretty 4.37 Ct Australian boulder opal was mined by Sue Cooper at her Yaraka opal mine in western Queensland, Australia in 2023. Sue processed the rough opal herself and cut int...
Opal
IGI certified 20.76Ct Huge Type A Burma Lavender Jade (20.35x14.2x9.02mm)
Located in Singapore, SG
Kindly note that the stated price for this item is fixed and non-negotiable. We appreciate your understanding and respect for our pricing decision. This oval cabochon lavender jadei...
Jade, Silver
$279Sale Price / set|20% Off
Set of 1.70 Carat Mother of Pearl
Located in София, BG
Set of 2 gemstones: - Mother of Pearl (x2) Dimensions: Length: 10.30 mm Width: 7.40 mm Height: 2.00 mm Weight: 1.70 Carat Cut: Star
Pearl
160.15 carats top quality tanzania tanzanite plain trillion layout natural gem
Located in Jaipur, RJ
160.15 carats top quality tanzania tanzanite plain trillion layout natural gem Gemstone: tanzanite Shape: Trillion Carat weight: 160.15 Size - 4x9 to 18x9 MM Quantity - 14 pieces
Tanzanite
Natural 13.54 Ct carved Boulder Opal butterfly wings mined by Sue Cooper
Located in BELCONNEN, ACT
This beautiful 13.54 Ct Australian boulder opal was mined by Sue Cooper at her Yaraka opal mine in western Queensland, Australia in 2024. Sue processed the rough boulder opal herself...
Opal
$1,280Sale Price|20% Off
Natural 20.08 Ct Carved Boulder Opal Butterfly Wings mined by Sue Cooper
Located in BELCONNEN, ACT
This beautiful 20.08 Ct Australian boulder opal was mined by Sue Cooper at her Yaraka opal mine in western Queensland, Australia in 2024. Sue processed the rough boulder opal herself...
Opal
Natural 7.61 Ct Australian carved flower opal mined by Sue Cooper
Located in BELCONNEN, ACT
This beautiful 7.61 Ct Australian wood replacement opal was mined by Sue Cooper at her Russells opal mine in western Queensland, Australia in 2021. Sue processed the rough opal herse...
Opal
Natural 8.68 Ct Australian boulder opal mined by Sue Cooper
Located in BELCONNEN, ACT
This beautiful 8.68 Ct Australian boulder opal was mined by Sue Cooper at her Mt. Margaret opal mine in western Queensland, Australia in 2022. Sue processed the rough opal herself an...
Opal
Natural 4.38 Ct Australian boulder opal mined by Sue Cooper
Located in BELCONNEN, ACT
This beautiful 4.38 Ct Australian boulder opal was mined by Sue Cooper at her Yaraka opal mine in western Queensland, Australia in 2023. Sue processed the rough opal herself and cut ...
Opal
Natural 5.24 Ct Australian pink boulder opal mined by Sue Cooper
Located in BELCONNEN, ACT
This lovely 5.24 Ct Australian boulder opal was mined by Sue Cooper at her Yaraka opal mine in western Queensland, Australia in 2021. Sue processed the rough opal herself and cut int...
Opal
Natural 4.14 Ct Australian heart boulder opal mined by Sue Cooper
Located in BELCONNEN, ACT
This lovely 4.14 Ct Australian boulder opal was mined by Sue Cooper at her Yaraka opal mine in western Queensland, Australia in 2021. Sue processed the rough opal herself and cut int...
Opal
Natural 12.54 Ct Australian heart boulder opal mined by Sue Cooper
Located in BELCONNEN, ACT
This beautiful 12.54 Ct Australian boulder opal was mined by Sue Cooper at her Yaraka opal mine in western Queensland, Australia in 2021. Sue processed the rough opal herself and cut...
Opal
Natural 7.66 Ct Australian green and pink boulder opal mined by Sue Cooper
Located in BELCONNEN, ACT
This beautiful 7.66 Ct Australian boulder opal was mined by Sue Cooper at her Mt. Margaret opal mine in western Queensland, Australia in 2024. Sue processed the rough opal herself an...
Opal
Natural 23.20 Ct large teardrop boulder opal mined by Sue Cooper
Located in BELCONNEN, ACT
This beautiful 23.20 Ct Australian boulder opal was mined by Sue Cooper at her Yaraka opal mine in western Queensland, Australia in 2021. Sue processed the rough opal herself and cut...
Opal
Natural 20.94 Ct Australian rainbow boulder opal mined by Sue Cooper
Located in BELCONNEN, ACT
This beautiful 20.94 Ct Australian boulder opal was mined by Sue Cooper at her Russells opal mine in western Queensland, Australia in 2020. Sue processed the rough opal herself and c...
Opal
Natural 11.52 Ct Australian rainbow boulder opal mined by Sue Cooper
Located in BELCONNEN, ACT
This beautiful 11.52 Ct Australian boulder opal was mined by Sue Cooper at her Yaraka opal mine in Western Queensland, Australia in 2021. Sue processed the rough opal herself and cut...
Opal
Natural 9.59 Ct rainbow Australian boulder opal mined by Sue Cooper
Located in BELCONNEN, ACT
This beautiful 7.66 Ct Australian boulder opal was mined by Sue Cooper at her Mt. Margaret opal mine in western Queensland, Australia in 2024. Sue processed the rough opal herself an...
Opal
Natural 9.42 Ct Australian light pastel boulder opal mined by Sue Cooper
Located in BELCONNEN, ACT
This lovely 9.42 Ct Australian boulder opal was mined by Sue Cooper at her Yaraka opal mine in western Queensland, Australia in 2022. Sue processed the rough opal herself and cut int...
Opal
Natural 9.36 Ct Australian wood replacement opal heart mined by Sue Cooper
Located in BELCONNEN, ACT
This brilliant 9.36 Ct wood replacement opal, carved into a heart, is a truly exceptional addition to any collection, mined by Sue Cooper herself. Its rarity, coupled with its modern...
Opal
Natural 8.30 Ct Australian pastel boulder opal mined by Sue Cooper
Located in BELCONNEN, ACT
This lovely 8.30 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 int...
Opal
Natural 4.15 Ct Australian pastel boulder opal mined by Sue Cooper
Located in BELCONNEN, ACT
This lovely 4.15 Ct Australian boulder opal was mined by Sue Cooper at her Russells opal mine in western Queensland, Australia in 2022. Sue processed the rough opal herself and cut i...
Opal
Natural 6.27 Ct Wood Replacement Australian Opal Cloud mined by Sue Cooper
Located in BELCONNEN, ACT
This brilliant purple 4.95 Ct wood replacement opal, carved into a cloud, is a truly exceptional addition to any collection, mined by Sue Cooper herself. Its rarity, coupled with its...
Opal
Exceptional 1064.30 Carats Aquamarine Piece of Art Hand Carved
Located in Jaipur, RJ
An exceptional size aquamarine carved cabochon , carved on both the sides by hand, it took the artisan over 4 months to complete this work of art. Natural Aquamarine 1064.30 Carats
Aquamarine
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.