3.48 cts, Faceted pink morganite heart shape
Located in บางรัก, TH
Faceted pink morganite heart shape sku561 Weight: 10x10х6.3 mm Weight: 3.48 cts Color: pink
Morganite
Set of faceted aquamarines, 4.45 cts
Located in บางรัก, TH
Set of faceted aquamarines sku14 Mining location: Africa Perfect for earrings and a ring Visually clean, inclusions are visible in the magnifying glass, which in itself is an excelle...
Aquamarine
6.8 cts, Faceted Russian danburite
Located in บางรัก, TH
Faceted Russian danburite sku560 Weight: 6.8 cts Diameter 12.5 mm, high 7.8 mm Origin Far East, Dalnegorskoe deposit Iideal perfect Russian cut
Stone
2.23 cts, Certified Faceted blue pink Sapphires Pair
Located in บางรัก, TH
Certified Faceted sapphires opposite pair sku144 Origin: Sri Lanka Sizes: 8.98x5.55x3.22 mm, 8.76x5.48x3.13 mm Weight: 2.23 ct This pair doenst have any treatments, even normal heat...
Sapphire, Blue Sapphire, Pink Sapphire
5.45 ct, Vivid green high quality Faceted peridote
Located in บางรัก, TH
Vivid green high quality Faceted peridote sku90 Weight: 5.45 carats Size: 9.3x8.2x7.1 mm Mining location: Pakistan Octagon cut
Peridot
6.5 cts, Rare Pink tourmaline cabochon
Located in บางรัก, TH
Rare Pink tourmaline cabochon sku407 Weight: 6.5 cts Size: 15x11x3 mm Origin: Russia
Tourmaline
4.8 ct, Faceted orange garnet, spessatite garnet
Located in บางรัก, TH
Faceted spessartite orange garnet sku69 From Nigeria Size: 9.7x8.8x5.5 mm Weight: 4.8 ct
Garnet
0.52 cts, Russian demantoid garnet with obvious horsetail inclusion
Located in บางรัก, TH
Russian demantoid garnet with obvious horsetail inclusion sku687 !!️Tagil, Bobrovka deposit = no treatments (no heating) Weight: 0.52 cts Diameter: 4.9 mm Demantoid is the rarest ...
Garnet
4.64 ct, Faceted Blue Tourmaline Indicolite Gemstone
Located in บางรัก, TH
Faceted blue tourmaline indicolite gemstone sku3 Weight: 4.64 ct Size: 9,97х7,99х6.49 mm Origin: Afghanistan, Kunar mine GFCO certified Perfect size and shape for the men ring
Tourmaline, Indicolite
4.64 cts, Rare Bi-Color Cat’s Eye Green Tourmaline
Located in บางรัก, TH
Rare Bi-Color Cat’s Eye Green Tourmaline sku722 Weight: 4.64 cts Origin: Afghanistan One part displays an opaque tourmaline with a distinct cat’s eye phenomenon, while the other rema...
Tourmaline, Cat’s Eye
114.83 cts, Rough alexandrite specimen
Located in บางรัก, TH
Rough alexandrite specimen sku706 Size: 40x35x20 mm Weight: 114.83 cts Can use for jewelry and put this stone into the ring or pendant Mined at Malyshevskoye deposit, Ural Mountains,...
Alexandrite, Chrysoberyl, Crystal
Collectible Russian demantoid set
Located in บางรัก, TH
Collectible Russian demantoid set sku316 Rough demantoid 13.5 cts Faceted demantoid 0.21 ct Everyone from gemsotne world knows, that best demantoids are mining in the Urals Mountain...
Garnet
Rare burmese zircon set, 5.5 cts
Located in บางรัก, TH
Rare burmese zircon set sku598 1.93 heart 6.3x7x4 mm 3.56 cts cushion 7.5x7.5x6.5 mm
Zircon
Faceted white sapphire octagon pair, 0.29 cts
Located in บางรัก, TH
Faceted white sapphire octagon pair sku308 Color: white Size: 4x2 mm Weight: 0.29 cts Sri Lanka Perfect for use as side stones — see the last photo for an example.
Sapphire
17.5 cts, Russian alexandrite rough crystal, chrysoberyl raw crystal
Located in บางรัก, TH
Russian alexandrite rough crystal, chrysoberyl raw crystal sku675 Size: 16x13x10 mm Weight: 17.5 cts Perfect for collection or jewelry Mined at Malyshevskoye deposit, Ural Mountai...
Alexandrite, Chrysoberyl, Crystal
63.5 cts, Round labradorite cabochon
Located in บางรัก, TH
Round labradorite cabochon sku397 Weight: 63.5 cts Diameter: 34 mm Heigh: 4 mm Origin: Madagascar
Labradorite
7.55 Carat Natural Loose Parti Tourmaline Emerald Shape Gemstone
Located in Peshawar, PK
Faceted Parti Colour Tourmaline Weight: 7.55 Carat Dimension: 14.5 x 8.6 x 6.8 Mm Colour: Black, Green, Blue Seafoam And Light Seafoam Origin: Afghanistan Treatment: Non Certifi...
Tourmaline, Other
5.17 ct, Faceted Spessartite Orange Garnet
Located in บางรัก, TH
Faceted spessartite orange garnet sku66 Cutting: oval From Nigeria Size: 11x8.2x6.2 mm Weight: 5.17 ct
Garnet
Dioptase cabochon
Located in บางรัก, TH
Dioptase cabochon sku14 From Kazahstan Size: 31х18х9 mm
Other
3.61, Faceted Sleepy Blue Sapphire
Located in บางรัก, TH
Heated faceted blue sapphire sku54 Size: 11.10 х 8.50 х 4.13 mm Mining location: Sri Lanka Nice incusions - very obvious color zoning Weight: 3.61 ct Shape: Oval Treatment: normal he...
Sapphire, Blue Sapphire
17.4 ct, Rough shungite specimen
Located in บางรัก, TH
Rough shungite specimen sku684 Size: 24x20x4 mm Weight: 17.4 ct Origin: Kola Peninsula, Russia
Crystal
0.52 ct, Faceted pink round tourmaline
Located in บางรัก, TH
Faceted pink round tourmaline sku667 Weight: 0.52 ct Diameter: 5.3 mm Color: pink Origin: Afghanistan
Tourmaline
Faceted aquamarine octagon, 1.45 cts
Located in บางรัก, TH
Faceted aquamarine octagon sku253 Weight: 1.45 cts Size: 9.5x5.6x3.4 mm
Aquamarine
4.78 cts, Russian alexandrite rough crystal, chrysoberyl raw crystal
Located in บางรัก, TH
Russian alexandrite rough crystal, chrysoberyl raw crystal sku681 Size: 13x9.3x6 mm Weight: 4.78 cts Perfect for collection or jewelry Mined at Malyshevskoye deposit, Ural Mountains...
Alexandrite, Chrysoberyl, Crystal
3.80 Carat Natural Loose Blue Tourmaline Cushion Shape Gemstone
Located in Peshawar, PK
Faceted Blue Tourmaline Weight: 3.80 Carat Dimension: 10.5 x 8.3 x 6.0 Mm Colour: Blue Origin: Afghanistan Treatment: Non Certificate: On Customer Demand Tourmaline is a capt...
Tourmaline, Other
$720Sale Price|55% Off
Certified 1.30ct Oval Paraiba Tourmaline, 7.02x5.79x4.39 mm
Located in เกาะสมุย, TH
A vibrant 1.30‑carat Mozambique Paraiba tourmaline displaying a glowing bluish‑green hue and exceptional VS1 clarity—rare for copper‑bearing material. The oval cut (7.02 × 5.79 × 4.3...
Tourmaline, Paraiba
Certified Faceted emerald, 0.24 cts
Located in บางรัก, TH
Certified Faceted emerald sku214 Weight: 0.24 cts Size: 3.83 x 3.62 x 2.76 mm Color: green 100% natural Origin: Colombia GFCO laboratory certificate.
Emerald
Faceted blue sapphire, 1.62cts
Located in บางรัก, TH
Faceted blue sapphire sku450 Weight: 1.62 cts Size: 7.6x5.5x3.8 mm Color: blue Origin: Sri Lanka Treatment heated, excellent cutting
Sapphire, Blue Sapphire
25.93 ct, Rough shungite specimen
Located in บางรัก, TH
Rough shungite specimen sku683 Size: 27x20x4 mm Weight: 25.93 ct Origin: Kola Peninsula, Russia
Crystal
1.17 cts, Certified faceted Paraiba tourmaline
Located in บางรัก, TH
Certified faceted Paraiba tourmaline sku694 Weight: 1.17 cts Size: 8.66x5.18x3.29 mm Origin: Mozambique Beautiful color, good cutting, affordable price Certified GFCO
Tourmaline, Paraiba
5.50 Carat Natural Loose Tri Colour Tourmaline Pair Emerald Shape Gemstone
Located in Peshawar, PK
Faceted Tri Colour Tourmaline Pair Weight: 5.50 Carat Sizes: 2.60 And 2.80 Carat Colour: Black, Light Pink And Baby Pink Origin: Afghanistan Treatment: Non Certificate: On Cust...
Tourmaline, Other
0.44 ct, Faceted Russian Demantoid with bissolite inclusions
Located in บางรัก, TH
Faceted Russian Demantoid with bissolite inclusions sku624 Weight: 0.44 ct Diameter 4.8 mm Demantoid is the rarest and most valuable variety of the garnet group. Stones that display the characteristic “horsetail” inclusion — fine fibrous structures of Bissolite — are especially prized by collectors. These inclusions are considered a classic identifying feature of natural Demantoid, particularly those originating from the Ural Mountains. Rather than reducing value, a well-formed horsetail inclusion is often seen as confirmation of authenticity and a distinctive natural characteristic of this gemstone. This demantoid originates from the historic Bobrovka deposit in the Ural Mountains, Russia, one of the most famous sources of demantoid garnet in the world. Uralian demantoids have been prized since the 19th century and were particularly popular in Russian Imperial jewelry...
Garnet
102.6 cts, Rough alexandrite specimen
Located in บางรัก, TH
Rough alexandrite specimen sku705 Size: 40x25x20 mm Weight: 102.6 cts Can use for jewelry and put this stone into the ring or pendant Mined at Malyshevskoye deposit, Ural Mountains, ...
Crystal, Chrysoberyl, Alexandrite
17.85 Carat Natural Loose Aquamarine Pair Emerald Shape Gemstone
Located in Peshawar, PK
Loose Aquamarine Pair Weight: 17.85 Carat Dimension: 14.2 x 10.2 x 8.3 Mm 14.2 x 10.1 x 8.4 Mm Colour : Blue White Origin: Pakistan Treatment: Non Certificate: On Demand Shape:...
Aquamarine, Other
78.94 cts, Rough alexandrite specimen
Located in บางรัก, TH
Rough alexandrite specimen sku707 Size: 40x21x11 mm Weight: 78.94 cts Can use for jewelry and put this stone into the ring or pendant Mined at Malyshevskoye deposit, Ural Mountains, ...
Crystal, Chrysoberyl, Alexandrite
0.27 ct, Faceted vivid green russian demantoid pair
Located in บางรัก, TH
Faceted vivid green russian demantoid pair sku732 !!️Tagil, Bobrovka deposit = no treatments (no heating) Weight: 0.27 ct Diameter: 2.8 mm Everyone from gemsotne world knows, that ...
Garnet
79 cts, Large larimar cabochon
Located in บางรัก, TH
Large larimar cabochon sku403 Weight: 79 cts Size: 38x32x4 mm Origin: Dominic republic
Larimar
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
48 cts, Pear shape labradorite cabochon
Located in บางรัก, TH
Pear shape labradorite cabochon sku396 Weight: 48 cts Size: 38x25x5 mm Origin: Madagascar
Labradorite
1.8 cts, Faceted spessartite pair
Located in บางรัก, TH
Faceted spessartite pair sku289 Weight: 1.64 cts Diameter: 5.5 mm Color orange Fanta Origin: Tanzania
Garnet
Faceted blue sapphire, 1.56 ct
Located in บางรัก, TH
Faceted blue sapphire sku449 Weight: 1.56 ct Size: 5.8x4 mm Color: blue Origin: Sri Lanka Treatment heated, excellent cutting
Sapphire, Blue Sapphire
11.70 Carat Natural Loose Bicolor Heart Shape Ametrine Brazilian Gemstone
Located in Bangkok, TH
Weight 11.70 carat Dimensions 15.7x16.8x9.4mm Treatment None Origin Brazil Clarity Loup Clean Shape Cut Heart This exquisite 11.70 carat natural ametrine showcases the encha...
Other
2.95 Carat Natural Loose Sapphire Lot Gemstone For Jewellery Making
Located in Peshawar, PK
Loose Sapphire Lot Weight: 2.95 Carats Sizes: 0.80, 1.00 And 1.05 Carat Origin: Madagascar Certificate: On Customer Demand Sapphire, a gemstone of legendary beauty and enduring al...
Sapphire, Other
36.15 Carat Natural Loose Baby Pink Kunzite Cushion Cut Afghan Gemstone
Located in Bangkok, TH
Weight 36.15 carat Dimensions 20x16.4x13.4 mm Treatment Heater Origin Afghan Clarity Loup Clean Shape Cut Cushion This exquisite 36.15 carat natural baby pink kunzite disp...
Kunzite
1.66 cts, Faceted indicolite blue tourmaline
Located in บางรัก, TH
Faceted indicolite blue tourmaline sku625 Weight: 1.66 ct Origin: Afghanistan, Kunar mine
Tourmaline
1.24 cts, Drop Shape Tourmaline Rubellite Pair
Located in บางรัก, TH
Drop shape tourmaline rubellite pair sku186 Weight: 1.24 ct Size: 6.3x4.4x3.1 mm Color: Pink Cut shape: Drop Place of extraction: Nigeria. Certificate from any lab is available, Pl...
Tourmaline
6.10 Carat Natural Loose Seafoam Tourmaline Cushion Shape Gemstone
Located in Peshawar, PK
Faceted Seafoam Tourmaline Weight: 6.10 Carat Dimension : 10.4 x 10 x 7.8 Mm Origin: Afghanistan Colour: Seafoam Treatment: Non Certificate: On Customer Demand Tourmaline is a...
Tourmaline, Other
Natural Sphene Titanite 1.57 Ct Madagascar Rare Fire Gemstone Statement Gem
Located in Peshawar, PK
Offered here is an exquisite **1.57 carat natural Sphene (Titanite)**, sourced from the distinguished gemstone deposits of Madagascar. Revered among collectors for its exceptional op...
Other
3.90 Carat Natural Loose Sapphire Lot For Jewellery Making
Located in Peshawar, PK
Loose Sapphire Lot Weight: 3.90 Carats Sizes: 0.80 To 1.10 Carats Origin: Madagascar Certificate: On Customer Demand Sapphire, a gemstone of legendary beauty and enduring allure, c...
Sapphire, Other
$356Sale Price|35% Off
Lime Vivid Green Natural Peridot 6.80 Carat Cushion Cut Loose Gemstone for Ring
Located in Peshawar, PK
Lime Vivid Green Natural Peridot Cushion Cut Loose Gemstone. Earth Mined Green Peridot August Birthstone for Ring, Pendant & Fine Jewelry, Faceted Cushion Shape Collector & I...
Peridot
IGI certified 6.48Ct Type A Burma Jade Leaf Carving Pair (Jadeite Pair)
Located in Singapore, SG
This pair is Type A completely natural, untreated Jade and sourced from Northern Burma (Myanmar). With official IGI certification, this stone represents both stunning adornment and ...
Jade
Chrysoprase cabochon
Located in บางรัก, TH
Chrysoprase cabochon sku404 Weight: 19.4 cts Size: 24x17x4 mm Origin: Kazakhstan
Chrysophrase
5.00 Carat Natural Loose Mint Green Tourmaline Emerald Cut Afghan Gemstone
Located in Bangkok, TH
Weight 5.00 carat Dimensions 12.9x7.9x6.4mm Treatment None Origin Afghan Clarity Eye Clean Shape Cut Emerald This beautiful 5.00 carat natural tourmaline displays a refresh...
Tourmaline
Certified faceted ruby, 0.68 cts
Located in บางรัก, TH
Certified faceted ruby sku209 Weight: 0.68 cts Size: 5.24х4.23х3.54 mm GFCO laboratory certificate
Ruby
$6,435Sale Price|25% Off
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
16.15 Carat Natural Loose Swiss Blue Topaz Emerald Shape Gemstone
Located in Peshawar, PK
Loose Swiss Blue Topaz Weight: 16.15 Carats Dimensions: 15.9 x 12.4 x 9.1 Mm Origin: Brazil Shape: Emerald Color: Blue Certificate: On Demand Benefits Of Wearing Swiss Blue Topaz ...
Blue Topaz, Other
Watermelon tourmaline slice, 9.8 cts
Located in บางรัก, TH
Watermelon tourmaline slice sku196 Weight: 9.8 cts
Tourmaline
4.25 Carat Natural Loose Imperial Topaz Lot For Jewellery Making
Located in Peshawar, PK
Faceted Imperial Topaz Lot Weight: 4.25 Carats Sizes: 1.80, 1.40 and 1.05 Carats Origin: Katlang Pakistan Color; Imperial Golden Treatment: Non Certificate: On Demand Imperial Top...
Imperial Topaz, Other
Fine 7MM Square Cushion Cut Tanzanite - Loose Gemstone
Located in New York, NY
A captivating 1.65 carat cushion-cut Tanzanite, measuring 7 mm with beautifully balanced proportions. Its soft pillow silhouette frames a rich violet-blue interior that shifts betwee...
Tanzanite
1.34 cts, Faceted pink tourmaline pair
Located in บางรัก, TH
Faceted pink tourmaline pair sku666 Weight: 1.34 cts Diameter 5.5 mm Origin: Afghanistan
Tourmaline
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.
