$2,240Sale Price|20% Off
Burmese IGA Certified Violet Spinel, 3.18 Carat Oval Gemstone
Located in Peshawar, PK
Faceted Spinel Weight : 3.18 Carat Dimension: 7.69 x 10.12 x 5.66 Mm Colour : Violet Treatment: Non Origin: Burma Shape : Oval Certificate: IGA Certificate Available Spinel is a...
Spinel
Certified 8.18Ct Natural Zircon loose gemstone, Cushion cut, Sri Lanka.
By GRALJEWELRY
Located in Dublin, D
Natural Zircon loose Gemstone Laboratory certified AIG Stone: Zircon Stone Creation: Natural Stone Color: Orange Stone Origin: Sri Lanka Stone size: 10.82x10.60x6.70mm Carat weight:...
Zircon
IGI Certified Gigantic 90.25 Carats Natural Loose Kunzite Gemstone
Located in Brisbane, AU
Faceted Kunzite Weight: 90.25 Carats Dimension: 28x21x17.1 Mm Origin: Kunar Afghanistan Shape: Cushion Color: Pink Certificate: On Customer Demand Every OHLIGUER jewel is custom m...
Kunzite
$5,440Sale Price|20% Off
Guild Certified 2.44 Carat Untreated Loose Burmese Ruby Gemstone
Located in Peshawar, PK
Natural Loose Ruby Weight: 2.44 Carat Dimension: 8.79 x 7.92 x 4.04 Mm Colour: Vivid Red Treatment: Natural Origin: Himalayan Mountain (Burma) Certificate: Guild Certificate Availab...
Ruby, Other
$3,200Sale Price|20% Off
Guild Certified 1.16 Carat Untreated Burmese Loose Ruby Gemstone
Located in Peshawar, PK
Natural Loose Ruby Weight: 1.16 Carat Dimension: 6.45 x 5.66 x 3.72 Mm Colour: Vivid Red Treatment: Natural Origin: Himalayan Mountain (Burma) Certificate: Guild Certificate Availab...
Ruby, Other
$600Sale Price|20% Off
Certified 1.61 Carat Natural Loose Sapphire Octagon Shape Gemstone
Located in Peshawar, PK
Loose Sapphire Weight: 1.61 Carats Sizes: 7.44 x 5.88 x 3.69 Mm Origin: Madagascar, Africa Shape: Octagon Colour: Teal Treatment: Heat Enhancement Certificate: AIG Certificate Av...
Sapphire, Other
$960Sale Price|20% Off
Certified 1.26 Carat Natural Loose Ruby Oval Shape Gemstone
Located in Peshawar, PK
Faceted Ruby Weight: 1.26 Carat Dimension: 7.68 x 4.55 x 3.60 Mm Colour: Purplish Red Origin: Mozambique Treatment: Heat Enhancement Certificate: GCL Certificate Available Mozambi...
Ruby, Other
AIG Certified 3.17ct Mahenge Spinel Cushion Gemstone, Tanzania, New
Located in Peshawar, PK
Faceted Mahenge Spinel Weight: 3.17 Carat Dimension: 8.53 x 7.19 x 6.07 Mm Colour: Pink Origin: Mahenge, Tanzania Treatment: Non Shape: Cushion Certificate: AIG Certificate Availab...
Spinel, Other
$2,400Sale Price|20% Off
Vibrant Pink Mahenge Spinel 1.62ct Oval Gemstone, AIG Certified
Located in Peshawar, PK
Faceted Mahenge Spinel Weight: 1.62 Carat Dimension: 7.67 x 6.48 x 4.38 Mm Colour: Vibrant Pink Origin: Mahenge, Tanzania Treatment: Non Shape: Oval Certificate: AIG Certificate A...
Spinel
$640Sale Price|20% Off
Certified 2.03 Carat Natural Loose Bluish Green Sapphire Gemstone
Located in Peshawar, PK
Loose Sapphire Weight: 2.03 Carats Sizes: 7.98 x 6.31 x 3.85 Mm Origin: Madagascar, Africa Shape: Octagon Colour: Bluish Green Treatment: Heat Enhancement Certificate: AIG Certifi...
Blue Sapphire, Green Sapphire, Other
Certified Natural 3.04 Ct. Spinel loose gemstone, Cushion cut, Tanzania
By GRALJEWELRY
Located in Dublin, D
Natural Spinel loose gemstone Laboratory certified GFCO Gemstone Color: Pink Gemstone Type: Spinel Gemstone size: 9.57x7.37x4.95 mm.
Spinel
$800Sale Price|20% Off
Cobalt Spinel 1.32ct Cushion Gemstone, AIG Certified, Tanzania, New
Located in Peshawar, PK
Faceted Cobalt Spinel Weight : 1.32 Carat Dimension: 6.48 x 5.74 x 4.71 Mm Colour: Blue Origin: Tanzania Treatment: Non Certificate: AIG Certificate Available Shape: Cushion For y...
Spinel, Other
5.02ct Blue Spinel Pear Shape Gemstone, GIA Certified Unheated
By Sarosi By Timeless Gems
Located in Los Angeles, CA
This unheated blue spinel has exceptional brilliance and luster! Accompanied by Gemological Institute of America Report #6204170110, this gem weighs 5.02 carats and measures 10.44 x ...
Spinel
Certified Natural 3.13 Ct. Spinel loose gemstone, Cushion cut, Tanzania
By GRALJEWELRY
Located in Dublin, D
Natural Spinel loose gemstone Laboratory certified GFCO Gemstone Color: Pink-Purple Gemstone Type: Spinel Gemstone size: 9.00x7.61x5.60mm Cut Grade: Excellent Clarity/Grade: Loupe c...
Spinel
GFCO Certified Natural 2.09Ct. Blue Cobalt Spinel gemstone, Oval cut
By GRALJEWELRY
Located in Dublin, D
Natural Spinel Loose gemstone Laboratory certified GFCO Gemstone Color: Cobalt Blue Gemstone Type: Spinel Gemstone size: 8.96x6.58x4.72 mm Cut Grade: Excellent Clarity/Grade: Loupe ...
Spinel
$32,000Sale Price|20% Off
Bellerophon Certified Vivid Blue Sapphire: Faceted Gemstone 7.49 CTs
Located in Peshawar, PK
This sapphire gemstone is a striking example of one of the world’s most revered precious stones, valued for both beauty and durability. Featuring an eye-clean clarity, the gem displa...
Blue Sapphire
Certified 4.08 Ct. Natural Rhodolite Garnet loose gemstone, Cushion cut
By GRALJEWELRY
Located in Dublin, D
Natural Rhodolite Garnet loose gemstone Laboratory certified GFCO Gemstone Color: VIVID PINK-PURPLE Gemstone Type: Garnet Rhodolite Gemstone size: 9.38x8.04x6.05 mm Cut Grade: Excel...
Garnet
Captivating 1.90ct Natural Unheated Blue Sapphire Loose Gemstone - GIA Certified
Located in רמת גן, IL
TECHNICAL SPECIFICATIONS Jewelry type: Loose Gemstone Metal: NA Main Stone: • Stone: Natural Sapphire • Quantity: 1 stone • Carat weight: 1.90 ct • Dimensions: 7.69 x 7.15 x 4.36 mm...
Blue Sapphire
Stunning 2.19ct Natural Unheated Blue Sapphire Loose Gemstone - GIA Certified
Located in רמת גן, IL
TECHNICAL SPECIFICATIONS Jewelry type: Loose Gemstone Metal: NA Main Stone: • Stone: Natural Sapphire • Quantity: 1 stone • Carat weight: 2.19 ct • Dimensions: 10.88 x 7.26 x 3.88 m...
Blue Sapphire
Magnificent 3.56ct Natural Unheated Blue Sapphire Loose Gemstone - GIA Certified
Located in רמת גן, IL
TECHNICAL SPECIFICATIONS Jewelry type: Loose Gemstone Metal: NA Main Stone: • Stone: Natural Sapphire • Quantity: 1 stone • Carat weight: 3.56 ct • Dimensions: 10.09 x 7.84 x 5.03 m...
Sapphire, Blue Sapphire
Certified 3.81 Ct. Natural Rhodolite Garnet loose gemstone, Octagon cut
By GRALJEWELRY
Located in Dublin, D
Natural Rhodolite Garnet loose gemstone Laboratory certified GFCO Gemstone Color: purplish-RED Gemstone Type: Garnet Rhodolite Gemstone size: 9.22x8.47x5.20 mm Cut Grade: Excellent ...
Garnet
Certified Natural 5.04 Ct. Spinel loose gemstone, Cushion cut, Tanzania
By GRALJEWELRY
Located in Dublin, D
Natural Spinel loose gemstone Laboratory certified GFCO Gemstone Color: purple Gemstone Type: Spinel Gemstone size: 11.06x8.31x5.90mm Cut Grade: Excellent Clarity/Grade: SI Gemstone...
Spinel
Certified 5.77ct. Oval Deep Green Faceted Sapphire Gemstone-Heated Only
Located in Crescent City, IL
Polished certified 5.77ct. oval faceted gemstone. Rich deep green color with visible internal characteristics.
Green Sapphire
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
GIA Certified Mozambique Ruby Pear Shape 8.84x6.9mm 2.05Cts - Red Gemstone
Located in Columbus, OH
This GIA-certified Mozambique ruby displays the rich, romantic red hue that has made fine rubies one of the world’s most treasured gemstones for centuries.
Ruby
GFCO Certified 6.29ct Natural Tourmaline gemstone, Cushion cut, Congo
By GRALJEWELRY
Located in Dublin, D
Natural Tourmaline gemstone Certificate GFCO Gemstone Color: slightly bluesh-GREEN Gemstone Type: Tourmaline Gemstone size: 12.43x9.42x7.21mm Cut Grade: Very Good Clarity/Grade: VVS...
Tourmaline
GFCO Certified National 3.81ct Lagoon Tourmaline gemstone, Octagon, Afghanistan
By GRALJEWELRY
Located in Dublin, D
Natural Lagoon Tourmaline gemstone Certificate GFCO Gemstone Color: Bluish-green Gemstone Type: Tourmaline Gemstone size: 10.00x7.14x6.47mm Cut Grade: Very Good Clarity/Grade: VVS G...
Tourmaline
GFCO Certified 3.45ct Natural Tourmaline gemstone, Oval cut, 10.39x8.15x6.67mm.
By GRALJEWELRY
Located in Dublin, D
Natural Tourmaline gemstone Certificate GFCO Gemstone Color: yellowish green Gemstone Type: Tourmaline Gemstone size: 10.39x8.15x6.67mm Cut Grade: Very Good Clarity/Grade: VVS Gemst...
Tourmaline
Certified 12.37 Carat Natural Imperial Topaz Gemstone Cushion Cut
Located in Brisbane, AU
Loose Imperial Topaz Weight: 12.37 Carats Dimension: 14.29 x 11.23 x 9.24 Mm Shape: Cushion Colour: Light Orange Origin: Katlang, Pakistan Treatment: None Certificate: Available ...
Imperial Topaz, Other
$896Sale Price|20% Off
GIA Certified 0.62ct J SI1 Marquise Diamond, Antique Gemstone
Located in New York, NY
ITEM DESCRIPTION ID #: 54274 Stone Shape: Marquise Diamond Weight: 0.62CT Clarity: SI1 Color: J Cut: Measurements: 7.64 x 4.12 x 3.21mm Depth %: 77.9% Table %: 60% Symmetry: Fair ...
White Diamond
$409Sale Price / set|30% Off
Certified Creamy Cultured Freshwater Pearl 8.67Ct Round Cabochon Loose Gemstones
Located in Peshawar, PK
Certified Creamy White Cultured Freshwater Pearl Round Cabochon Loose Gemstone – Natural Lustrous Pearl for Fine Jewelry Making, High Quality Loose Pearl for Rings, Pendants, Earring...
Freshwater Pearl
GIA Certified Mozambique Ruby 1.65cts – 9.03x6.89mm Natural Oval Ruby Gemstone
Located in Columbus, OH
This exceptional Mozambique ruby displays the rich, passionate red hue that has made fine rubies one of the most coveted gemstones in the world for centuries. Measuring approximately...
Ruby
GIA Certified 3.95 Carat Cushion Cut Russian Emerald Loose Gemstone
Located in Trumbull, CT
Russian emeralds—particularly those approaching the 4‑carat mark—are increasingly scarce, and their limited production has elevated them to a prized status in the global gemstone mar...
Emerald
$2,400Sale Price|20% Off
Certified 3.24 Carat Faceted Blue Sapphire Oval Shape Gemstone
Located in Peshawar, PK
Loose Blue Sapphire Weight: 3.24 Carats Dimension: 9.8 x 7.9 x 4.5 Mm Origin: Sri Lanka Treatment: Heated Certificate: Available Sapphire, a gemstone of legendary beauty and end...
Blue Sapphire
GIA Certified Royal Blue Sapphire 3.69ct Madagascar Cushion Loose Gemstone
Located in 足立区, JP
A 3.69 carat GIA-certified Royal Blue sapphire from Madagascar, offered as a loose gemstone.
Blue Sapphire
GIA Certified 4.49 Carat Emerald Cut Russian Emerald Loose Gemstone
Located in Trumbull, CT
GIA‑Certified 4.49 Carat Russian Emerald — Octagonal Cut, F2 Clarity This GIA‑certified 4.49‑carat Russian emerald is a commanding example of one of the world’s most coveted emerald ...
Emerald
IGI Certified 2.52ct Light Yellowish Green Oval-Shaped Tourmaline Gemstone
Located in רמת גן, IL
IGI Certified 2.52ct Light Yellowish Green Oval-Shaped Tourmaline Gemstone This 2.52-carat Tourmaline features an elegant oval cut, beautifully showcasing its soft light yellowish-g...
Tourmaline
$7,760Sale Price|20% Off
268.63 Carat Natural Certified Quality Purple Spodumene Kunzite Afghan Gemstone
Located in Bangkok, TH
Weight 268.63 carat Dimensions 38.87 x 29.13 x 26.78 mm Treatment None Origin Afghan Clarity Eye Clean Shape Cut Cushion This extraordinary 268.63 carat natural Certified Purple ...
Kunzite
Zircon Losse 6.41 Ct., natural gemstone, Octagon cut, GFCO certified.
By GRALJEWELRY
Located in Dublin, D
Natural Zircon loose gemstone from Sri-Lanka Laboratory certified GFCO Gemstone Color: Brown-Orange/Orange-Brown Gemstone Type: Zircon Gemstone size: 10.53x7.66x6.48 mm.
Zircon
GIA Certified 2.08ct Unheated Red Spinel Cushion Cut Gemstone, Myanmar
Located in Brooklyn, NY
This pretty Red spinel Cushion cut , weighs 2.08 carats and would make a beautiful 3-stone ring, though its shape lends itself to a variety of possibilities! It measures 8.60 x 8.03 ...
Spinel
Unheated 13.12 Carat Ceylon Blue Sapphire, Loose Gemstone, Certified Cushion
By Emeralds Maravellous
Located in Brunswick, ME
Unheated 13.12 Carat Ceylon Blue Sapphire, Loose Gemstone, Certified Certified 13.12 Carats Blue Sapphire from Sri Lanka (Ceylon) Gemstone: Natural Sapphire Carat Weight: 13.12 Cara...
Blue Sapphire
Certified 0.49 Carat Natural Loose Paraiba Tourmaline Pear Shape Gemstone
Located in Peshawar, PK
Loose Paraiba Tourmaline Weight: 0.49 Carat Dimension: 6.04 x 4.93 x 2.65 Mm Colour: Green Blue Shape:Pear Origin: Mozambique, Africa Treatment: Non Certificate: AIG Certificate A...
Tourmaline, Paraiba, Other
Certified 1.08 Carat Natural Loose Rare Clinohumite Oval Shape Gemstone
Located in Peshawar, PK
Faceted Clinohumite Weight: 1.08 Carats Dimension: 6.87 x 5.62 x 4.39 Mm Origin: Tajikistan Colour: Orange Treatment: Non Certificate: Certificate Available Clinohumite is a r...
Other, Other
Briolette Natural Diamond, GIA Certified 3.81ct, Fancy Brown Loose Gemstone
Located in Ramat Gan, IL
Discover this exquisite unique 3.81 carat natural Briolette Cut diamond, GIA Certified ( GIA no. 2231658907 ) for authenticity and quality.
Diamond
Certified Natural 2.56Ct Cobalt Spinel loose gemstone, Cushion cut, Origin Burma
By GRALJEWELRY
Located in Dublin, D
Natural Spinel loose gemstone Laboratory certified AIG Gemstone Color: Blue Gemstone Type: Spinel Gemstone size: 8.45x7.14x4,80mm Cut Grade: Excellent Clarity/Grade: Loupe clean Gem...
Spinel
$480Sale Price|20% Off
Certified 1.26 Carat Natural Loose Rare Clinohumite Gemstone From Tajikistan
Located in Peshawar, PK
Faceted Clinohumite Weight: 1.26 Carats Dimension: 7.76 x 6.34 x 4.99 Mm Origin: Tajikistan Colour: Orange Treatment: Non Certificate: Certificate Available Clinohumite is a r...
Other, Other
$520Sale Price|20% Off
20.42 carats GGI Certified Aquamarine Cushion Cut Natural Pakistani Gemstone
Located in Bangkok, TH
Its impressive carat weight and certified authenticity make it not only a stunning centerpiece but also a valuable collector’s piece for gemstone enthusiasts.
Aquamarine
Certified 3.81 Ct. Natural Rhodolite Garnet loose gemstone, Octagon cut, Tanzani
By GRALJEWELRY
Located in Dublin, D
Natural Rhodolite Garnet loose gemstone Laboratory certified GFCO Gemstone Color: RED-PINK-PURPLE Gemstone Type: Garnet Rhodolite Gemstone size: 9.48x8.51x5.56 mm Cut Grade: Excelle...
Garnet
Spinel 6.05Ct Purplish Pink natural gemstone, Cushion, Tanzania, GIA Certified
By GRALJEWELRY
Located in Dublin, D
Natural Spinel Loose gemstone 6. 05 Ct. From Tanzania. Laboratory certified GIA Gemstone Color: Purplish pink Gemstone Type: Spinel Gemstone size: 9.77x9.19x7.65mm Gemstone Shape: ...
Spinel
AGA Certified 1.49 Carat Natural Loose Burmese Red Spinel Gemstone
Located in Peshawar, PK
Faceted Spinel Weight: 1.49 Carat Dimension: 6.45 x 5.86 x 4.99 Mm Colour: Red Shape: Cushion Origin: Myanmar (Burma) Treatment: None Certificate: AGA Certificate Available Spinel...
Spinel, Other
AIG Certified Faceted Blue Sapphire: 1.33 Carat Pear Cut Gemstone
Located in Peshawar, PK
Weight: 1.33 carat Dimensions: 9.090 * 5.870 * 3.260 MM Clarity : SI Clean Treatment: Heated Zodiac sign : virgo , Taurus, Aries Birth : September Hardness : mohs 9 knoop 1175-1380 ...
Blue Sapphire
7.19 Carats Certified Natural Rhodolite Garnet Loose Gemstone Oval Cut
Located in Brisbane, AU
Rhodolite is a type of gemstone that is typically a deep, rose pink to a raspberry red in color.
Garnet
$920Sale Price|20% Off
Certified 1.71 Carat Natural Loose Red Spinel Gemstone From Tanzania
Located in Peshawar, PK
Faceted Spinel Weight: 1.71 Carat Dimension: 7.35 x 6.30 x 4.69 Mm Colour: Vivid Red Shape: Cushion Origin: Tanzania Treatment: None Certificate: AIG Certificate Available Spinel...
Spinel, Other
2.17 Carat Certified Natural Cobalt Blue Spinel Asscher Cut Tanzanian Gemstone
Located in Bangkok, TH
Weight 2.17 carats Dimensions 7.78 x 7.42 × 4.48 mm Treatment None Origin Tanzanian Clarity Eye Clean Shape Cut Asscher GFCO Certified AG192 Elevate your fine jewelry collect...
Spinel
$880Sale Price|20% Off
Certified 1.44 Carat Natural Loose Red Spinel Gemstone From Tanzania
Located in Peshawar, PK
Faceted Spinel Weight: 1.44 Carat Dimension: 6.89 x 6.57 x 3.79 Mm Colour: Red Shape: Cushion Origin: Tanzania Treatment: None Certificate: AIG Certificate Available Spinel is a ...
Spinel, Other
$920Sale Price|20% Off
Certified 1.65 Carat Natural Loose Red Spinel Gemstone For Jewellery
Located in Peshawar, PK
Faceted Spinel Weight: 1.65 Carat Dimension: 7.80 x 6.42 x 3.97 Mm Colour: Vivid Red Shape: Cushion Origin: Tanzania Treatment: None Certificate: AIG Certificate Available Spinel ...
Spinel, Other
GFCO Certified Natural 4.02Ct Violet Spinel gemstone, Cushion cut, Tanzania
By GRALJEWELRY
Located in Dublin, D
Natural Spinel gemstone Laboratory certified GFCO Gemstone Color: Violet Gemstone Type: Spinel Gemstone size: 9.25x8.14x6.62mm Cut Grade: Very Good Clarity/Grade: VS Gemstone Shape:...
Spinel
$920Sale Price|20% Off
AGA Certified 1.79 Carat Natural Loose Red Burmese Spinel Gemstone
Located in Peshawar, PK
Faceted Spinel Weight: 1.79 Carat Dimension: 7.77 x 7.12 x 3.72 Mm Colour: Brownish Red Shape: Cushion Origin: Myanmar (Burma) Treatment: None Certificate: AGA Certificate Availabl...
Spinel, Other
GFCO Certified Natural 1.78Ct Grey Spinel gemstone, Heart cut, Tanzania
By GRALJEWELRY
Located in Dublin, D
Natural Spinel gemstone Laboratory certified GFCO Gemstone Color: Grey Gemstone Type: Spinel Gemstone size: 6.88x7.76x4.63mm Cut Grade: Very Good Clarity/Grade: VS Gemstone Shape: H...
Spinel
$13,600Sale Price|20% Off
Bellerophon Certified 6.80 CT Natural Spinel Gemstone Purplish Pink Tanzania
Located in Peshawar, PK
This exquisite **Spinel gemstone** showcases a captivating **Purplish Pink hue**, celebrated for its lively brilliance and timeless appeal. Originating from **Tanzania**, a region re...
Spinel
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.