GFCO Certified Natural 4.21 Ct., Blue Spinel gemstone, cushion cut, Tanzania
By GRALJEWELRY
Located in Dublin, D
Natural Spinel Loose gemstone Laboratory certified GFCO Gemstone Color: Blue Gemstone Type: Spinel Gemstone size: 10.72x7.60x6.00 mm Cut Grade: Excellent Clarity/Grade: Eye Clean Ge...
Spinel
9.42 Carat Chrysoberyl Cushion Cut Loose Gemstone GIA Certified Unheated
By Merkaba
Located in Beverly Hills, CA
Offered loose for collectors and bespoke fine jewelry creation, this 9.42 carat natural chrysoberyl is expertly fashioned in a refined cushion cut and accompanied by GIA certificatio...
Chrysoberyl, 18k Gold, Rose Gold, White Gold, Yellow Gold, Platinum
$3,731Sale Price|20% Off
GIA Certified Burma Ruby Heated Oval 6.54x5.86mm 1.36cts – Natural Red Gemstone
Located in Columbus, OH
This premium GIA certified Burma ruby captures the unmistakable allure that has made Burmese rubies legendary among gemstone collectors and fine jewelry lovers alike.
Ruby
Certified 43.95 Carat Natural Arizona Hand-Carved Bouquet Turquoise Gemstone
By Vaibhav Dhadda
Located in Jaipur, Rajasthan
Certified 43.95 Carat Natural Arizona Hand-Carved Bouquet Turquoise Gemstone.
Turquoise
$384Sale Price|20% Off
Certified 0.75 Carat Natural Loose Pink Sapphire Step Cut Gemstone
Located in Peshawar, PK
Loose Pink Sapphire Weight: 0.75 Carat Dimension: 6.02 x 3.99 x 3.33 Mm Colour : Pink Cut: Step Treatment: Non Origin: Sri Lanka Certificate: GIT Certificate Available A Loose...
Pink Sapphire
GFCO Certified 2.90Ct Natural Aquamarine gemstone, Oval Fancy cut, Madagascar
By GRALJEWELRY
Located in Dublin, D
Natural Aquamarine gemstone Certificate GFCO Gemstone Color: Blue Gemstone Type: Aquamarine Gemstone size: 9.72x8.53x7.14mm Cut Grade: Very Good Clarity/Grade: VVS Gemstone Shape: O...
Aquamarine
$2,625Sale Price|30% Off
Certified Natural Bluish Green Paraiba Tourmaline 7.20Ct Oval Cut Loose Gemstone
Located in Peshawar, PK
ICA Certified Bluish Green Natural Paraiba Tourmaline Oval Cushion Cut Loose Gemstone – Premium Oval Shape Faceted Jewelry Stone, Investment Grade Collector Gem, Fine Loose Paraiba f...
Tourmaline, Paraiba
$4,921Sale Price|20% Off
GIA Certified Heated Burma Ruby Cushion Cut Loose Gemstone 1.77cts 6.81x6.27mm
Located in Columbus, OH
This GIA certified Burma ruby weighs approximately 1.77 carats and showcases the unmistakable richness and allure that fine Burmese rubies are known for.
Ruby
0.31 Ct ICA Certified Natural Red beryl bixbite Red Emerald Gemstone
Located in bangkok, TH
RE26 0.31 Ct ICA Certified Natural Red beryl bixbite Red Emerald Gemstone GEM DESCRIPTION Species: Natural Red Beryl Variety: Natural Emerald Weight: 0.31ct Color: Red Clarity: ...
Beryl
$2,564Sale Price|20% Off
GIA Certified Burma Ruby Oval 7.3x6mm 1.4ct – Exceptional High-Quality Gemstone
Located in Columbus, OH
This GIA-certified Burma Ruby is a stunning and rare gem that stands out with its rich, deep red hue and impeccable quality.
Ruby
0.26 Ct ICA Certified Natural Red beryl bixbite Red Emerald Gemstone
Located in bangkok, TH
RE25 0.26ct ICA Certified Natural Red beryl bixbite Red Emerald Gemstone OK1W40/U20X GEM DESCRIPTION Species: Natural Red Beryl Variety: Natural Emerald Weight: 0.26ct Color: Red ...
Beryl
Certified 34.97 Carats Hand-Carved Natural Arizona Turquoise Rabbit Gemstone
By Vaibhav Dhadda
Located in Jaipur, Rajasthan
Certified 34.97 Carats Hand-Carved Natural Arizona Turquoise Rabbit Gemstone.
Turquoise
$2,856Sale Price|20% Off
GIA Certified Burma Ruby Oval 6.7x6mm 1.57Ct – Premium Investment Loose Gemstone
Located in Columbus, OH
This GIA-certified Burma ruby is a true gem, boasting a vibrant oval shape and a stunning 6.7x6mm size, weighing 1.57 carats.
Ruby
$3,840Sale Price|20% Off
GIA Certified Burma Ruby 7x5.8mm 1.37 Carats Loose Gemstone – Naturally Heated
Located in Columbus, OH
Fine Burmese rubies continue to become increasingly scarce, making certified stones like this highly desirable for collectors and lovers of exceptional gemstones alike.
Ruby
$3,492Sale Price|30% Off
Certified Bluish Green Natural Paraiba Tourmaline Pear Cut 8.35Ct Loose Gemstone
Located in Peshawar, PK
ICA Gems Lab Certified Natural Bluish Green Paraiba Tourmaline Pear Cut Loose Gemstone – Top Quality, Jewelry Grade, Fine Gemstone for Ring, Pendant, Necklace, Custom Jewelry, Collec...
Tourmaline, Paraiba
Certified 42.23 Carats Hand-Carved Natural Arizona Turquoise Fish Gemstone
By Vaibhav Dhadda
Located in Jaipur, Rajasthan
Certified 42.23 Carats Hand-Carved Natural Arizona Turquoise Fish Gemstone.
Turquoise
$5,472Sale Price|20% Off
Premium GIA Certified Burma Ruby Cushion Cut 1.79cts 6.73x6.13mm – Red Gemstone
Located in Columbus, OH
Elegant yet powerful, it is the kind of gemstone that becomes the soul of a jewelry collection for generations to come.
Ruby
$560Sale Price|20% Off
Certified 3.85 Carat Natural Loose Imperial Topaz Cushion Cut Gemstone
Located in Peshawar, PK
Faceted Imperial Topaz Weight: 3.85 Carats Dimension: 9.18 x 8.94 x 5.80 Mm Origin: Shamozai Mine Katlang, Pakistan Shape: Cushion Color; Orangy Pink Treatment: Non Certificate: C...
Imperial Topaz, Other
$680Sale Price|20% Off
Certified 15.82 Carat Natural Loose Imperial Topaz Emerald Shape Gemstone
Located in Peshawar, PK
Faceted Imperial Topaz Weight: 15.82 Carats Dimension: 21.11 x 10.66 x 7.11 Mm Origin: Shamozai Mine Katlang, Pakistan Shape: Emerald Color; Imperial Golden Treatment: Non Certifica...
Imperial Topaz, Other
GIA Certified 1.58ct Unheated Purple-Red Spinel, Mixed Cut Gemstone
Located in Brooklyn, NY
This pretty Purple-Red spinel Mix cut , weighs 1.58 carats and would make a beautiful 3-stone ring, though its shape lends itself to a variety of possibilities! It measures 7.60 x 6....
Spinel
GIA Certified 1.79ct Purple-Pink Cushion Cut Spinel, Unheated Gemstone
Located in Brooklyn, NY
This pretty Purple-Pink spinel Cushion cut , weighs 1.79 carats and would make a beautiful 3-stone ring, though its shape lends itself to a variety of possibilities! It measures 6.8...
Spinel
GIA Certified 1.81ct Purple Cushion Cut Spinel, Unheated, New Gemstone
Located in Brooklyn, NY
This pretty Purple spinel Cushion cut , weighs 1.81 carats and would make a beautiful 3-stone ring, though its shape lends itself to a variety of possibilities! It measures 8.09 x 6....
Spinel
GIA Certified 3.58ct Cushion Cut Blue Sapphire Sri Lanka, Loose Gemstone
By Simon Ardem
Located in New York, NY
This GIA certified natural cushion cut sapphire has a glowing, radiant blue color. Originating in Sri Lanka, the stone's bright color speaks for itself. The cushion cut has a slightl...
Sapphire, Blue Sapphire
Certified Natural Burmese Oval Cut Ruby Loose Gemstone for Rings
Located in Istanbul, Fatih
Certified Natural Burmese Ruby Oval Cut Loose Gemstone for Rings Color : Deep Red Transparency : Transparent Shape and Cut : Oval Faceted Cut Weight : 4,06 Ct's Measurements : 9,99 ...
Ruby
3.95 Ct Certified UNHEATED COLOR CHANGE Sapphire Pear Loose Gemstone
Located in Fort Lee, NJ
A highly precious September birthstone with a delighting color. They are believed to bring good luck & fortune to life. Explore vibrant collection of Emerald, Ruby & Sapphir...
Green Sapphire
Certified 50.14 Carat Hand-Carved Natural Arizona Turquoise Fish Gemstone
By Vaibhav Dhadda
Located in Jaipur, Rajasthan
Certified 50.14 Carat Hand-Carved Natural Arizona Turquoise Fish Gemstone.
Turquoise
$360Sale Price|20% Off
Certified Natural Faceted 12.07 Carat Spessartine Garnet Cushion Cut Gemstone
Located in Peshawar, PK
Loose Spessartine Garnet Weight: 12.07 Carats Dimension: 11.45 x 11.08 x 9.13 Mm Colour: Orange Treatment: Non Shape: Cushion Certificate: Available Spessartine garnet, often ref...
Mandarin Garnet
Certified Natural Burmese Oval Cushion Ruby Loose Gemstone for Rings
Located in Istanbul, Fatih
Certified Natural Burmese Ruby Cushion Cut Loose Gemstone for Rings Color : Vivid Red Transparency : Transparent Shape and Cut : Cushion Faceted Cut Weight ...
Ruby
$2,600Sale Price|20% Off
Certified 29.9 carats Swat Emerald Sliced Pair Natural Pakistani Gemstone
Located in Bangkok, TH
Weight 29.90 carats Dimensions 22.64x18.5x4.17 mm Treatment minor oil Clarity included Origin Pakistan Shape Hexagonal Cut Faceted The 29.9 carat Green Swat Emerald Sliced Pai...
Emerald
1.05 Carat Certified Blue Spinel Stone Cushion Cut Natural Tanzanian Gemstone
Located in Bangkok, TH
Weight 1.05 carats Dimensions 5.83x5.82x3.53 mm Treatment None Origin Tanzania Clarity VVS Shape Cut Cushion AG281 This exquisite 1.05-carat natural blue spinel captivates with a...
Spinel
Certified 54.41 Carats Hand-Carved Natural Arizona Turquoise Bouquet Gemstone
By VAIBHAV DHADDA JEWELLERY
Located in Jaipur, Rajasthan
Certified 54.41 Carats Hand-Carved Natural Arizona Turquoise Bouquet Gemstone.
Turquoise
Certified 29.10 Carats Hand-Carved Natural Arizona Turquoise Eagle Gemstone
By Vaibhav Dhadda
Located in Jaipur, Rajasthan
Certified Hand-Carved 29.10 Carats Natural Arizona Turquoise Eagle Gemstone.
Turquoise
GIA Certified 1.18 Carat Trillion Cut Tanzanian Red Spinel Loose Gemstone
Located in Trumbull, CT
A GIA‑certified 1.18‑carat Tanzanian red spinel, cut into a striking trillion shape, is a highly desirable gemstone—made even more exceptional by its report showing no indication of ...
Spinel
2.17 Carat Natural Burmese (Mogok) Ruby, Unheated, AGL Certified, Loose Gemstone
Located in OVIEDO, AS
A striking centerpiece for a bespoke ring or pendant, or a fine addition to a gemstone collection. * The stone displays a deep red hue with a subtle violet undertone, a colour prize...
Ruby
GIA Certified 1.37 Carat Trillion Cut Tanzanian Red Spinel Loose Gemstone
Located in Trumbull, CT
A GIA‑certified 1.37‑carat Tanzanian red spinel, cut into a striking trillion shape, is a highly desirable gemstone—made even more exceptional by its report showing no indication of ...
Spinel
GIA Certified Red Spinel 2.56ct Burma No Heat Oval Loose Gemstone
Located in 足立区, JP
A 2.56 carat GIA-certified natural red spinel from Burma (Myanmar), offered as a loose gemstone.
Spinel
Tourmaline 7.42 Ct natural Loose gemstone, Oval cut, Nigeria, GFCO certified
By GRALJEWELRY
Located in Dublin, D
Natural Green Tourmaline Loose gemstone 7.42 Ct. Certificate GFCO Gemstone Color: green Gemstone Type: Tourmaline Gemstone size: 12.19x10.46x9.03mm Cut Grade: Very Good Clarity/Gra...
Tourmaline
$960Sale Price|20% Off
Certified 2.56 Carat Natural Loose Emerald Gemstone From Panjshir, Afghanistan
Located in Peshawar, PK
Loose Emerald Weight: 2.56 Carats Dimension: 8.7 x 6.4 x 5.5 Mm Origin: Panjshir, Afghanistan Cut: Emerald Color: Green Treatment: Non Certificate: Available Afghanistan is reno...
Emerald
GIA-Certified 3.99 Carat Andradite Garnet Demantoid Color Change Loose Gemstone
Located in Chicago, IL
This exceptional GIA-certified 3.99 carat oval Andradite Garnet, identified as a rare Demantoid variety, is a truly captivating loose gemstone prized for its remarkable color-change ...
Garnet
$5,772Sale Price|20% Off
GIA Certified 1.74ct Burma Ruby Heated Pear Cut 8.43x6.42mm – Loose Gemstone
Located in Columbus, OH
This exceptional 1.74 carat Burma ruby displays the rich, romantic red color that has made Burmese rubies some of the most coveted gemstones in the world. Expertly fashioned in a gra...
Ruby
$1,397Sale Price|30% Off
Certified 2.06 Carat Pastel Pink Natural Sapphire Pear Cut Loose Gemstone
Located in Peshawar, PK
Certified Pastel Pink Natural Sapphire Pear Cut Loose Gemstone – Unheated, Top Quality, Jewelry Grade, Fine Gemstone for Ring, Pendant, Necklace, Custom Jewelry, Collector’s Gem
Sapphire, Pink Sapphire
$3,497Sale Price|30% Off
Certified 3.07 Carat Pinkish Purple Natural Sapphire Oval Cut Loose Gemstone
Located in Peshawar, PK
Certified Pinkish Purple Natural Sapphire Oval Cut Loose Gemstone – Unheated, Top Quality, Jewelry Grade, Fine Gemstone for Ring, Pendant, Necklace, Custom Jewelry, Collector’s Gem
Sapphire, Purple Sapphire
$1,623Sale Price|35% Off
AIGS Certified Neon Greenish Blue Paraiba Tourmaline 3.92Ct Cushion Cut Gemstone
Located in Peshawar, PK
Neon Greenish Blue Natural Paraiba Tourmaline Elongated Cushion Cut Loose Gemstone from Mozambique – AIGS Certified Neon Blue Paraiba Tourmaline Stone for Pendant, Ring, Necklace, Cu...
Tourmaline, Paraiba
$4,588Sale Price|20% Off
GIA Certified Heated Burma Ruby Cushion Cut - 6.5x6x4.67mm 1.49ct Loose Gemstone
Located in Columbus, OH
This exceptional ~1.49ct Burma ruby glows with the rich, romantic red that has made Burmese rubies legendary among collectors for centuries. Measuring 6.49 x 5.98 x 4.67mm, this cush...
Ruby
$662Sale Price|30% Off
Certified Reddish Pink Natural Rhodolite Garnet Cushion Cut 4.69 Carat Gemstone
Located in Peshawar, PK
Certified Reddish Pink Natural Rhodolite Garnet Cushion Cut Loose Gemstone – Almandine Pyrope Garnet from Tanzania, Vivid Pinkish Red Faceted Garnet, AAA Quality Earth-Mined Gemstone...
Garnet, Rhodolite
$624Sale Price|20% Off
4.37 Carat Certified Natural Loose Spessartite Garnet Pear Cut African Gemstone
Located in Bangkok, TH
A rare combination of precision cutting, striking color, and certified quality makes this Spessartite a truly exceptional gemstone.
Garnet
$1,237Sale Price|30% Off
Certified Bluish Green Natural Tourmaline Cushion Cut 5.76 Carat Loose Gemstone
Located in Peshawar, PK
Bluish Green Certified Natural Tourmaline Square Cushion Cut Loose Gemstone – Faceted Earth-Mined Green Tourmaline with Bluish Hues for Statement Ring, Pendant, Custom Fine Jewelry, ...
Tourmaline
GIA Certified 12.95 Carat Emerald Cut Blue Indicolite Tourmaline Loose Gemstone
Located in Miami, FL
Product Specifications: Item Type: Loose Gemstone Gemstone: Natural Indicolite Tourmaline Carat Weight: 12.95 carats Cut: Emerald Cut (Step Cut) Color: Blue Green Clarity: Eye Clean...
Tourmaline
IGI Certified 1.63ct Natural Sapphire Yellow Blue Pear Cut Gemstone in Blister
Located in Birmingham, GB
IGI Certified 1.63ct Natural Sapphire Yellow Blue Pear Cut Gemstone in Blister IGI Certified Natural Sapphire In IGI Blister. 1.63 Carat with a unique brownish yellowish blue colour...
Sapphire
IGI Certified 1.22ct Pink Red Ruby Pear Cut Mozambique Rare Blister Gemstone
Located in Birmingham, GB
IGI Certified 1.22ct Pink Red Ruby Pear Cut Mozambique Rare Blister Gemstone IGI Certified Natural Pear Cut Ruby In IGI Blister. 1.22 Carat with a 'Deep Purplish Pink Red' colour an...
Ruby
Natural IGI Certified 1.46ct Deep Purple Pink Red Ruby Oval Cut Gemstone
Located in Birmingham, GB
Natural IGI Certified 1.46ct Deep Purple Pink Red Ruby Oval Cut Gemstone IGI Certified Natural Deep Purplish Pink Red Oval Cut Ruby In IGI Blister. 1.46 Carat with a very good oval ...
Ruby
IGI Certified 1.14ct Colour Change Green Blue Sapphire Oval Cut Rare Gemstone
Located in Birmingham, GB
IGI Certified 1.14ct Colour Change Green Blue Sapphire Oval Cut Rare Gemstone IGI Certified Rare Colour Change Sapphire Gemstone. 1.14 Carat sapphire with a rare colour change effect.
Sapphire
15.93ct GIA Certified Natural Zircon Brown Pink Untreated Pear Cut Rare Gemstone
Located in Birmingham, GB
15.93ct GIA Certified Natural Zircon Brown Pink Untreated Pear Cut Rare Gemstone Rare GIA Certified Natural Untreated Brownish Pink 'Champagne' Zircon Gemstone.
Zircon
AIG Certified Natural London Blue Topaz Gemstone: 88.49 Carat Cushion Cut
Located in Peshawar, PK
Wight : 88.49 Carats Dimensions : 29.19 * 22.08 * 16.65 mm Color : Lodon Blue Shape : Cushion Cut Clarity : Clean Treatment : Heat Origin : Brazil Hardness : 8 This stunning **Lond...
Topaz
AIG Certified Natural London Blue Topaz Gemstone: 69.24 Carat Cushion Cut
Located in Peshawar, PK
Wight : 69.24 Carats Dimensions : 24.23 * 20.02 * 17.83 mm Color : Lodon Blue Shape : Cushion Cut Clarity : Clean Treatment : Heat Origin : Brazil Hardness : 8 This elegant **Londo...
Topaz
AIG Certified Natural London Blue Topaz Gemstone: 79.70 Carat Trillion Cut
Located in Peshawar, PK
Wight : 79.70 Carats Dimensions : 27.20 * 26.61 * 18.97 mm Color : Lodon Blue Shape : Trillion Cut Clarity : Clean Treatment : Heat Origin : Brazil Hardness : 8 This striking **Lon...
Topaz
AIG Certified Natural London Blue Topaz Gemstone: 74.85 Carat Octagon Cut
Located in Peshawar, PK
Wight : 74.85 Carats Dimensions : 28.15 * 19.20 * 14.71 mm Color : Lodon Blue Shape : Octagon Cut Clarity : Clean Treatment : Heat Origin : Brazil Hardness : 8 This striking **Lond...
Topaz
AIG Certified Natural London Blue Topaz Gemstone: 169.29 Carat Cushion Cut
Located in Peshawar, PK
Wight : 169.29 Carats Dimensions : 31.19 * 30.97 * 21.17 mm Color : Lodon Blue Shape : Cushion Cut Clarity : VVS Clean Treatment : Heat Origin : Brazil Hardness : 8 Birthstone : Nove...
Topaz
IGI Certified Deep Purple Pink Sapphire 0.70ct Natural Oval Cut Rare Gemstone
Located in Birmingham, GB
IGI Certified Deep Purple Pink Sapphire 0.70ct Natural Oval Cut Rare Gemstone IGI Certified Deep Purple Pink Sapphire Oval Cut Gem. 0.70 Carat with a deep purple pink colour.
Sapphire
Unique GIA Certified 1.04ct Pear Cut Bi Colour Blue Yellow Sapphire Gemstone
Located in Birmingham, GB
Unique GIA Certified 1.04ct Pear Cut Bi Colour Blue Yellow Sapphire Gemstone Unique GIA Certified Natural Bi Colour Pear Teardrop Cut Sapphire Gemstone. 1.04 Carat sapphire with a b...
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.