2.17 Carat Natural Burmese (Mogok) Ruby, Unheated, AGL Certified, Loose Gemstone
Located in OVIEDO, AS
A fine natural ruby of 2.17 carats, displaying a rich deep red hue with a subtle violet-purple undertone characteristic of antique Mogok material, and even saturation with no evidenc...
Ruby
Natural Rare Bicolor Pink & Green Tourmaline Slices Pair for Earring Jewelry
Located in Peshawar, PK
Gemstone Details: Polished Natural Rare Artistic Tourmaline Slices Pair Weight 4.20 carats Circumference 9.0-9.5 mm Depth 2.7 mm Best Pair for Earrings Jewellery Origin Nurista...
Tourmaline
6 Cts Deep Purple Color Cushion Cut Amethyst Gemstone for Ring Jewellery 11mm
Located in Peshawar, PK
Gemstone Details: Faceted Amethyst Weight 6.30 carats Dimension 11.5 x 10.8 x 8.5 mm Origin Africa Color Deep Purple Treatment None Shape and Cut Cushion Transparency Trans...
Amethyst
4 cts, Very unusual Orange violet faceted spinel
By True Gems
Located in บางรัก, TH
Very unusual Orange violet faceted spinel sku842 Weight: 4 cts Size: 9.2x9x6.2 mm Due to inclusions looks like bi-color Very interesting stone Perfect cut
Spinel
23.95 Cts, Collectible Russian alexandrite specimen
By True Gems
Located in บางรัก, TH
Collectible Russian alexandrite specimen sku812 Size: 23.0 x 17.7 x 8.4 mm Weight: 23.95 ct Can use for jewelry and put this stone into the ring or pendant Mined at Malyshevskoye dep...
Alexandrite, Chrysoberyl, Crystal
303 ct, Natural black qurtz morion crystal on feldspar matrix
By True Gems
Located in บางรัก, TH
Natural black qurtz morion crystal on feldspar matrix sku802 Size: 67.5 x 37.6 x 31.0 mm Weight: 303 ct
Crystal, Quartz
3 Cts Oval Shape Spessartite Mandarin Fanta Color Garnet Gemstone for Jewellery
Located in Peshawar, PK
Gemstone Details: Faceted Mandarin Garnet (Spessartite) Weight 3.0 carats Dimension 9.1*8.1*4.5 mm Origin Africa Treatment None Shape and Cut Round Transparency Transparent ...
Garnet
1.22 carat, Faceted oval blue sapphire
By True Gems
Located in บางรัก, TH
Faceted oval blue sapphire sku778 Weight: 1.22 cts Size: 6.8x5.09x3.7 mm Color: blue Origin: Sri Lanka
Blue Sapphire
2.49 carats, Untreated faceted Tanzanite
By True Gems
Located in บางรัก, TH
Untreated faceted Tanzanite A beautiful option – a completely untreated Tanzanite with a striking color shift. Weight: 2.49 carats
Tanzanite
1.15 cts, Certified royal blue sapphire
By True Gems
Located in บางรัก, TH
Certified royal blue sapphire sku774 Weight: 1.15 cts Size: 6.86x5.67x3.05 mm Color: royal blue
Sapphire, Blue Sapphire
4.30 Carat Natural Loose Peach Pink Tourmaline Cushion Cut Gemstone
Located in Peshawar, PK
Faceted Peach Pink Tourmaline Weight: 4.30 Carat Dimension: 11.4 x 7.7 x 6.2 Mm Colour: Peach Pink Origin: Afghanistan Treatment: Non Certificate: On Customer Demand Tourmali...
Tourmaline, Other
$480Sale Price|40% Off
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
GIA certified, 5.16 Carats, Natural Violet Sapphire, Oval Cut, Sri Lankan Gemsto
By True Gems
Located in บางรัก, TH
Natural Violet Sapphire Oval Cut Weight: 5.16 Carats Size: 11.00x8.9x6.6 mm Color: blue Origin: Sri Lanka GIA certified
Sapphire
3.82 cts, Rough alexandrite specimen
By True Gems
Located in บางรัก, TH
Rough alexandrite specimen sku735 Size: 12x7x4 mm Weight: 3.82 cts Can use for jewelry and put this stone into the ring or pendant Mined at Malyshevskoye deposit, Ural Mountains, Rus...
Alexandrite, Chrysoberyl, Crystal
$264Sale Price|40% Off
Rare Tricolor Tourmaline Pair Gemstone Rose Pink Aqua Blue Lavender Periwinkle
Located in Peshawar, PK
Gemstone Details: Faceted Tricolor Tourmaline Matching Pair Weight 2.80 carats Dimension 9.5 x 4.3 x 3.8 mm Origin Nuristan, Afghanistan Shape and Cut Rectangular Emerald Tran...
Tourmaline
2.20ct Grey Spinel Gemstone, Emerald Cut, Tanzania by Gilt Gemstone
Located in Peshawar, PK
Faceted Spinel Weight : 2.20 Carat Dimension: 8.6 x 6.5 x 4 Mm Origin: Tanzania Treatment: Non Certificate: On Customer Demand Spinels is a captivating gemstone prized for its b...
Spinel, Other
$564Sale Price|40% Off
Natural Bicolor Watermelon Tourmaline Slices Gemstone For Earrings Jewelry 29cts
Located in Peshawar, PK
Gemstone Details: Polished Watermelon Tourmaline Slices, almost pair Weight 29.50 carats Dimension (11.2 x 9.9 x 3.7 mm) (10.5 x 9.8 x 3.7mm) Origin Nuristan, Afghanistan Treatmen...
Tourmaline
13.7 ct, Faceted kunzite
By True Gems
Located in บางรัก, TH
Faceted kunzite sku792 Weight: 13.7 ct Origin: Afghanistan
Kunzite
2.57 ct, Rare Certified Russian faceted vivid green demantoid garnet
By True Gems
Located in บางรัก, TH
Rare Certified Russian faceted vivid green demantoid garnet sku840 !!️Tagil, Bobrovka deposit = no treatments (no heating) Weight: 2.57 ct Size: 8.44x8.36x5.26 mm Everyone from gems...
Garnet
1.34 cts, Faceted pink tourmaline pair
By True Gems
Located in บางรัก, TH
Faceted pink tourmaline pair sku666 Weight: 1.34 cts Diameter 5.5 mm Origin: Afghanistan
Tourmaline
3.60 Carat Natural Loose Seafoam Tourmaline Gemstone
Located in Peshawar, PK
Faceted Seafoam Tourmaline Weight: 3.60 Carat Dimension: 9 x 8.4 x 6.3 Mm Colour: Seafoam Blue Origin: Afghanistan Treatment: Non Certificate: On Customer Demand Tourmaline i...
Tourmaline, Other
Certified Faceted emerald, 0.24 cts
By True Gems
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
$220Sale Price|40% Off
Teal Blue Tourmaline Sugarloaf Cabochon Gem Reminiscent of Fine Paraiba Color
Located in Peshawar, PK
Gemstone Details: Tourmaline Cabochon Weight 4.85 carats Dimension 8.55 x 8.1 x 7.48 mm Origin Nuristan, Afghanistan Treatment None Color Teal Blue reminiscent of fine Paraiba ...
Tourmaline
2.34 cts, Certified faceted unheated tanzanite
By True Gems
Located in บางรัก, TH
Certified faceted unheated tanzanite sku772 Weight: 2.34 cts Size: 10x6.8x5.6 mm Color: blue Origin: Tanzania. Beautiful stones with colores of madagascar sapphire and afghan tourmal...
Tanzanite
GIA Certified Colombian Emerald 1.26ct Octagonal Cut, Unisex, 1990
Located in Brooklyn, NY
Stone: Colombian Emerald Total Weight: 1.26 carat Shape: Octagonal Cut Clarity: Transparent Luster: Very Good Color: Medium Bluish Green Measurements: 6.99 mm x 6.48 mm x 3.83 mm . G...
Emerald
Faceted blue sapphire, 1.56 ct
By True Gems
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
Rare Colombian 17.16ct Natural Sugar Cut Emerald Cabochon, GIA Certified
Located in Delhi, DL
Rare, deep green columbian origin sugar cut emerald, perfect for jewel collection and bespoke jewelry. Its details are: Stone: Emerald Weight: 17.16 carats Shape: Sugar Cut Luster: ...
Emerald
1.13 Ct No heat GIA Certificate Natural Burma Ruby Unheated Pigeon blood Color
Located in bangkok, TH
RMA133 1.13 Ct GIA Certificate Natural Ruby Burma Unheated pigeon blood Gemstone GEM DESCRIPTION Species: Natural Ruby Variety: Natural Ruby unheated Weight: 1.13ct Color: Pigeon b...
Ruby
0.92 ct, Faceted vivid yellow sphene
By True Gems
Located in บางรัก, TH
Faceted vivid yellow sphene sku833 100% natural Weight: 0.92 cts Size: 6x6x3 mm Color: yellow Origin: Madagascar
Other
17.5 cts, Russian alexandrite rough crystal, chrysoberyl raw crystal
By True Gems
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
5.95 Carat Natural Loose Green Peridot Cushion Cut from Pakistan Gemstone
Located in Bangkok, TH
Weight 5.95 carat Dimensions 11.2x9.9x7.7mm Treatment None Origin Pakistan Clarity SI Shape Cut Cushion AG153 Elevate your fine jewelry collection or investment portfolio wi...
Peridot
0.58 ct, Faceted Russian demantoid garnet
By True Gems
Located in บางรัก, TH
Faceted Russian demantoid garnet sku801 !!️Tagil, Bobrovka deposit = no treatments (no heating) Weight: 0.58 ct Diameter: 5.28 x 3.03 mm Everyone from gemsotne world knows, that bes...
Garnet
1.24 cts, Drop Shape Tourmaline Rubellite Pair
By True Gems
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
Colombian Emerald Loose Gemstone, 0.44ct Octagonal Cut, 1990s
Located in Brooklyn, NY
Stone: Colombian Emerald Total Weight: 0.44 carat Shape: Octagonal Cut Clarity: Transparent Luster: Very Good Color: Medium Bluish Green Measurements: 4.72 mm x 4.33 mm x 3.03 mm Geo...
Emerald
1.8 cts Natural Pink Tourmaline Gemstone Square Cushion Cut for Jewellery 7mm
Located in Peshawar, PK
Gemstone Details: Faceted Pink Tourmaline Weight 1.80 carats Dimension 7.1 x 6.7 x 5.3 mm Origin Kunar, Afghanistan Treatment None SKU-TBP20K Shape and Cut Square Cushion Tra...
Tourmaline
14 Carats Heart Shape Faceted Ametrine Bicolour Gemstone for Pendant Jewellery
Located in Peshawar, PK
Gemstone Details: Loose Ametrine Gemstone Weight 14.90 carats Dimension 17.3*16.7*10.8 mm Origin Bolivia Shape and Cut Heart Transparency Transparent Clarity Eye Clean Treatm...
Quartz
1.7 Cts Bluish Green Cushion Cut Tourmaline Gemstone Pair for Earrings Jewellery
Located in Peshawar, PK
Gemstone Details: Faceted Tourmaline Gemstone Pair Weight 1.70 carats Color Bluish Green Dimension 6.3 x 5.2 x 3.4 mm Origin Kunar, Afghanistan Treatment None Shape and Cut St...
Tourmaline
Faceted rainbow sheen moonstone, 3.35 cts
By True Gems
Located in บางรัก, TH
Faceted rainbow sheen moonstone sku121 Weight: 3.35 ct Size: 10.5x7.5x6mm Octagon cut Mining location: Madagascar Gem trend of the last few years
Moonstone
5.0 Carats Emerald Cut Green Tourmaline Gemstone for Jewellery from Afghanistan
Located in Peshawar, PK
Gemstone Details: • Gemstone: Natural Tourmaline • Color: Deep Green, Emerald Green • Weight: 5.0 carats • Dimension: 11.4*8.4*6.7 mm • C-axis Partially closed • Cut: Emerald •...
Tourmaline
2.05 cts, Faceted Mahenge pinkish red spinel
By True Gems
Located in บางรัก, TH
Faceted Mahenge pinkish red spinel sku826 Weight: 2.05 cts Color: pinkish red Size: 6.65x56.47x5.21 mm
Spinel
Ametrine Heart Cut Loose Gemstone, 15.00 Carats, Bolivia Origin
Located in Peshawar, PK
Loose Ametrine Weight: 15.00 Carats Dimension: 17.5 x 16.6 x 10.8 Mm Origin: Bolivia Shape: Heart Color: Purple & Yellow Treatment: Non Ametrine is a naturally occurring varie...
Citrine, Amethyst, Other
$420Sale Price|40% Off
Pendant Size Natural Polychrome Elbaite Tourmaline Gemstone Hand Carved Wing
Located in Peshawar, PK
Gemstone Details: Multi Color Tourmaline Hand Carved Wing Weight 6.65 carats Dimension 23.5*11.6*3.4 mm Origin Nuristan, Afghanistan Treatment None Transparency Transparent Lab...
Tourmaline
Faceted vivid green Rusisan demantoid garnet, 0.6cts
By True Gems
Located in บางรัก, TH
Faceted vivid green Rusisan demantoid garnet sku481 Weight: 0.6 ct Diameter: 5.09x5.08x3.13 mm Demantoid is the rarest and most valuable variety of the garnet group. Stones t...
Garnet
5.12 Carat Old Mine Cut Diamond – J Color, SI1 Clarity, GIA Certified
Located in Dubai, Dubai
A remarkable 5.12 carat Old Mine Cut diamond of exceptional presence and antique character, this GIA-certified diamond showcases the timeless beauty of historic diamond cutting. Grad...
Diamond
1.36 carat, Faceted oval blue sapphire
By True Gems
Located in บางรัก, TH
Faceted oval blue sapphire sku777 Weight: 1.36 cts Size: 6.5x5.8x4.2 mm Color: blue Origin: Sri Lanka
Blue Sapphire
Bicolor Blue Green Tourmaline Emerald Cut Natural Gemstone for Ring Jewellery
Located in Peshawar, PK
Gemstone Details: Gemstone: Natural Tourmaline Weight: 2.25 Carats Shape: Emerald Cut Dimension 13.8 x 4.7 x 3.6 mm Color: Lagoon Blue-Green (Dual Shades) Transp...
Tourmaline
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
$650Sale Price|59% 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
WEEK LONG CLEARANCE, 2.30 Carat Round Shape Natural Diamond No treatments
Located in Great Neck Plaza, NY
2.30 Carat Round Shape Natural Diamond Average Color H , Clarity i3 Measurement 8.3 mm stone Nice cut Excellent shine and face-up
Diamond, 14k Gold, Yellow Gold
4.8 ct, Faceted orange garnet, spessatite garnet
By True Gems
Located in บางรัก, TH
Faceted spessartite orange garnet sku69 From Nigeria Size: 9.7x8.8x5.5 mm Weight: 4.8 ct
Garnet
3.03 cts, Untreated blue sapphire with a GIA certificate
By True Gems
Located in บางรัก, TH
Untreated blue sapphire with a GIA certificate sku03 Weight: 3.03 carats Size: 8.37x7.57x4.75 mm Origin: Sri Lanka
Sapphire, Blue Sapphire
21.75 Cts, Collectible Russian alexandrite specimen
By True Gems
Located in บางรัก, TH
Collectible Russian alexandrite specimen sku811 Size: 21.3 x 17.6 x 11.2 mm Weight: 21.75 ct Can use for jewelry and put this stone into the ring or pendant Mined at Malyshevskoye de...
Alexandrite, Chrysoberyl, Crystal
Faceted red zircon, cushion cut, 6.32 cts
By True Gems
Located in บางรัก, TH
Faceted red zircon, cushion cut sku475 Size: 10.2 x8.4x6.3 mm Weight: 6.32 cts Origin: Sri Lanka
Zircon
5.40 Carat Natural Loose Bicolor Tourmaline Pair Emerald Cut Afghan Gemstone
Located in Bangkok, TH
Weight 5.40 carat Dimensions 8.6x7.0x4.9 mm Treatment None Origin Afghan Clarity SI Shape Cut Emerald Discover the beauty of this 5.40 Carat Natural Loose Bicolor Tourmaline...
Tourmaline
2.53 cts, Untreated bluish violet sapphire with a GIA certificate
By True Gems
Located in บางรัก, TH
Untreated bluish violet sapphire with a GIA certificate sku04 Weight: 2.53 carats Size: 8.72x6.82x4.98 mm Origin: Sri Lanka
Sapphire, Blue Sapphire
WHOLESALE VALUE, 2.22 Carat Round Shape Natural Diamond No treatments
Located in Great Neck Plaza, NY
2.22 Carat Round Shape Natural Diamond Average Color I , Clarity i3 Measurement 8.3 mm stone Nice cut Excellent shine and face-up
Diamond, 14k Gold, Yellow Gold
3.12 cts, Untreated purple sapphire with a GIA certificate
By True Gems
Located in บางรัก, TH
Untreated purple sapphire with a GIA certificate sku05 Weight: 3.12 carats Size: 8.23x6.34x5.97 mm Origin: Sri Lanka
Sapphire, Purple Sapphire
GIA Certified 2.33ct Colombian Emerald, Emerald Cut, Unisex, 1990
Located in Brooklyn, NY
Stone: Colombian Emerald Total Weight: 2.33 carat Shape: Octagonal Cut Clarity: Transparent Luster: Very Good Color: Medium Bluish Green Measurements: 7.82 mm x 7.60 mm x 6.35 mm Ge...
Emerald
3.15 cts, Untreated purple sapphire with a GIA certificate
By True Gems
Located in บางรัก, TH
Untreated purple sapphire with a GIA certificate sku02 Weight: 3.15 carats Size: 9.34×6.89×5.66 mm Origin: Sri Lanka
Sapphire, Purple 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.
