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Loose Gemstones For Sale
23.95 Cts, Collectible Russian alexandrite specimen
23.95 Cts, Collectible Russian alexandrite specimen

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...

Category

21st Century and Contemporary Russian Arts and Crafts Loose Gemstones

Materials

Alexandrite, Chrysoberyl, Crystal

303 ct, Natural black qurtz morion crystal on feldspar matrix
303 ct, Natural black qurtz morion crystal on feldspar matrix

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

Category

21st Century and Contemporary Russian Arts and Crafts Loose Gemstones

Materials

Crystal, Quartz

21.75 Cts, Collectible Russian alexandrite specimen
21.75 Cts, Collectible Russian alexandrite specimen

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...

Category

21st Century and Contemporary Russian Arts and Crafts Loose Gemstones

Materials

Alexandrite, Chrysoberyl, Crystal

1.15 cts, Certified royal blue sapphire
1.15 cts, Certified royal blue sapphire

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

Category

21st Century and Contemporary Russian Arts and Crafts Loose Gemstones

Materials

Sapphire, Blue Sapphire

3.12 cts, Untreated purple sapphire with a GIA certificate
3.12 cts, Untreated purple sapphire with a GIA certificate

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

Category

21st Century and Contemporary Russian Arts and Crafts Loose Gemstones

Materials

Sapphire, Purple Sapphire

13.7 ct, Faceted kunzite
13.7 ct, Faceted kunzite

13.7 ct, Faceted kunzite

By True Gems

Located in บางรัก, TH

Faceted kunzite sku792 Weight: 13.7 ct  Origin: Afghanistan 

Category

21st Century and Contemporary Russian Arts and Crafts Loose Gemstones

Materials

Kunzite

3.82 cts, Rough alexandrite specimen
3.82 cts, Rough alexandrite specimen

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...

Category

21st Century and Contemporary Russian Arts and Crafts Loose Gemstones

Materials

Alexandrite, Chrysoberyl, Crystal

18.47 cts, Rough alexandrite specimen
18.47 cts, Rough alexandrite specimen

18.47 cts, Rough alexandrite specimen

By True Gems

Located in บางรัก, TH

Rough alexandrite specimen sku743 Size: 22x11x6 mm Weight: 18.47 cts Can use for jewelry and put this stone into the ring or pendant Mined at Malyshevskoye deposit, Ural Mountains, R...

Category

21st Century and Contemporary Russian Arts and Crafts Loose Gemstones

Materials

Alexandrite, Chrysoberyl, Crystal

41.60 Cts, Collectible Russian alexandrite specimen
41.60 Cts, Collectible Russian alexandrite specimen

41.60 Cts, Collectible Russian alexandrite specimen

By True Gems

Located in บางรัก, TH

Collectible Russian alexandrite specimen sku807 Size: 24.1 x 19.2 x 17.0 mm Weight: 41.60 ct Can use for jewelry and put this stone into the ring or pendant Mined at Malyshevskoye de...

Category

21st Century and Contemporary Russian Arts and Crafts Loose Gemstones

Materials

Alexandrite, Chrysoberyl, Crystal

34.05 Cts, Collectible Russian alexandrite specimen
34.05 Cts, Collectible Russian alexandrite specimen

34.05 Cts, Collectible Russian alexandrite specimen

By True Gems

Located in บางรัก, TH

Collectible Russian alexandrite specimen sku810 Size: 18.9 x 18.6 x 14.5 mm Weight: 34.05 ct Can use for jewelry and put this stone into the ring or pendant Mined at Malyshevskoye de...

Category

21st Century and Contemporary Russian Arts and Crafts Loose Gemstones

Materials

Alexandrite, Chrysoberyl, Crystal

1.28 cts, Faceted oval blue sapphire
1.28 cts, Faceted oval blue sapphire

1.28 cts, Faceted oval blue sapphire

By True Gems

Located in บางรัก, TH

Faceted oval blue sapphire sku775 Weight: 1.28 cts Size: 6.5x5.5x3.4 mm Color: blue Origin: Sri Lanka

Category

21st Century and Contemporary Russian Arts and Crafts Loose Gemstones

Materials

Blue Sapphire

Grey Spinel Gemstone 2.20 Carat
Grey Spinel Gemstone 2.20 Carat

Grey Spinel Gemstone 2.20 Carat

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...

Category

21st Century and Contemporary Tanzanian Arts and Crafts Loose Gemstones

Materials

Spinel, Other

2.49 carats, Untreated faceted Tanzanite
2.49 carats, Untreated faceted Tanzanite

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

Category

21st Century and Contemporary Russian Arts and Crafts Loose Gemstones

Materials

Tanzanite

3.61, Faceted Sleepy Blue Sapphire
3.61, Faceted Sleepy Blue Sapphire

3.61, Faceted Sleepy Blue Sapphire

By True Gems

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...

Category

21st Century and Contemporary Russian Arts and Crafts Loose Gemstones

Materials

Sapphire, Blue Sapphire

1.34 cts, Faceted pink tourmaline pair
1.34 cts, Faceted pink tourmaline pair

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

Category

21st Century and Contemporary Russian Arts and Crafts Loose Gemstones

Materials

Tourmaline

Faceted rainbow sheen moonstone, 3.35 cts
Faceted rainbow sheen moonstone, 3.35 cts

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

Category

21st Century and Contemporary Russian Arts and Crafts Loose Gemstones

Materials

Moonstone

4.26 cts, Rough alexandrite specimen
4.26 cts, Rough alexandrite specimen

4.26 cts, Rough alexandrite specimen

By True Gems

Located in บางรัก, TH

Rough alexandrite specimen sku736 Size: 10x8x6 mm Weight: 4.26 cts Can use for jewelry and put this stone into the ring or pendant Mined at Malyshevskoye deposit, Ural Mountains, Rus...

Category

21st Century and Contemporary Russian Arts and Crafts Loose Gemstones

Materials

Alexandrite, Chrysoberyl, Crystal

GIA Certified Colombian Emerald 1.26ct Octagonal Cut, Unisex, 1990
GIA Certified Colombian Emerald 1.26ct Octagonal Cut, Unisex, 1990

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...

Category

1990s Colombian Loose Gemstones

Materials

Emerald

Certified Faceted emerald, 0.24 cts
Certified Faceted emerald, 0.24 cts

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.

Category

21st Century and Contemporary Russian Arts and Crafts Loose Gemstones

Materials

Emerald

Faceted aquamarine octagon, 1.45 cts
Faceted aquamarine octagon, 1.45 cts

Faceted aquamarine octagon, 1.45 cts

By True Gems

Located in บางรัก, TH

Faceted aquamarine octagon sku253 Weight: 1.45 cts Size: 9.5x5.6x3.4 mm

Category

21st Century and Contemporary Russian Arts and Crafts Loose Gemstones

Materials

Aquamarine

2.58 cts, Opalescent effect natural pink sapphire
2.58 cts, Opalescent effect natural pink sapphire

2.58 cts, Opalescent effect natural pink sapphire

By True Gems

Located in บางรัก, TH

Opalescent effect natural pink sapphire Origin: Sri Lanka Size: 9.1 x 7.0 x 4.7 mm Weight: 2.58 ct Shape: octagon

Category

21st Century and Contemporary Russian Arts and Crafts Loose Gemstones

Materials

Sapphire, Pink Sapphire

Faceted blue sapphire, 1.56 ct
Faceted blue sapphire, 1.56 ct

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

Category

21st Century and Contemporary Russian Arts and Crafts Loose Gemstones

Materials

Sapphire, Blue Sapphire

1 ct, Faceted Russian demantoid garnet set
1 ct, Faceted Russian demantoid garnet set

1 ct, Faceted Russian demantoid garnet set

By True Gems

Located in บางรัก, TH

Faceted Russian demantoid garnet set sku734 ‼️Tagil, Bobrovka deposit = no treatments (no heating) Weight: 1 ct Everyone from gemsotne world knows, that best demantoids are mining...

Category

21st Century and Contemporary Russian Arts and Crafts Loose Gemstones

Materials

Garnet

4.28 cts, Certified faceted Paraiba tourmaline
4.28 cts, Certified faceted Paraiba tourmaline

4.28 cts, Certified faceted Paraiba tourmaline

By True Gems

Located in บางรัก, TH

Certified faceted Paraiba tourmaline sku693 Weight: 4.28 cts Size: 10.93x8.74x6.63 mm Origin: Mozambique Beautiful color, good cutting, affordable price Certified GFCO

Category

21st Century and Contemporary Russian Arts and Crafts Loose Gemstones

Materials

Tourmaline, Paraiba

63.5 cts, Round labradorite cabochon
63.5 cts, Round labradorite cabochon

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

Category

2010s Loose Gemstones

Materials

Labradorite

3.85 Carat Natural Loose Bi Colour Tourmaline Emerald Shape Gemstone
3.85 Carat Natural Loose Bi Colour Tourmaline Emerald Shape Gemstone

3.85 Carat Natural Loose Bi Colour Tourmaline Emerald Shape Gemstone

By Gilt Gemstone

Located in Peshawar, PK

Faceted Bi Colour Tourmaline Weight: 3.85 Carat Dimension: 9.6 x 7.3 x 5.8 Mm Colour: Black And Pink Origin: Afghanistan Treatment: Non Certificate: On Customer Demand Tourm...

Category

21st Century and Contemporary Afghan Arts and Crafts Loose Gemstones

Materials

Tourmaline, Other

Lilac untreated sapphire with a GIA certificate
Lilac untreated sapphire with a GIA certificate

Lilac untreated sapphire with a GIA certificate

By True Gems

Located in บางรัก, TH

Lilac untreated sapphire with a GIA certificate Weight: 5.04 cts  Size: 9.5х8.72х6.49 mm Origin: Sri Lanka

Category

21st Century and Contemporary Russian Arts and Crafts Loose Gemstones

Materials

Sapphire

0.51 ct, Faceted bi color tourmaline
0.51 ct, Faceted bi color tourmaline

0.51 ct, Faceted bi color tourmaline

By True Gems

Located in บางรัก, TH

Faceted bi color tourmaline sku768 Weight: 0.51 cts Size: 5.1x4.3x3.1 mm Origin: Africe 100% natural.

Category

21st Century and Contemporary Russian Arts and Crafts Loose Gemstones

Materials

Tourmaline

2.23 cts, Certified Faceted blue pink Sapphires Pair
2.23 cts, Certified Faceted blue pink Sapphires Pair

2.23 cts, Certified Faceted blue pink Sapphires Pair

By True Gems

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...

Category

21st Century and Contemporary Russian Arts and Crafts Loose Gemstones

Materials

Sapphire, Blue Sapphire, Pink Sapphire

2.53 cts, Untreated bluish violet sapphire with a GIA certificate
2.53 cts, Untreated bluish violet sapphire with a GIA certificate

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

Category

21st Century and Contemporary Russian Arts and Crafts Loose Gemstones

Materials

Sapphire, Blue Sapphire

Certified 1.25ct Marquise Burma Pink Spinel, 5.08x9.79x3.25 mm
Certified 1.25ct Marquise Burma Pink Spinel, 5.08x9.79x3.25 mm

Certified 1.25ct Marquise Burma Pink Spinel, 5.08x9.79x3.25 mm

Located in เกาะสมุย, TH

A vivid 1.25ct natural Burma pink spinel, certified by GLC, showcasing a clean VS1 clarity and an elegant marquise mixed cut. The stone displays a bright, saturated pink with excelle...

Category

21st Century and Contemporary Burmese Artisan Loose Gemstones

Materials

Spinel

GIA Certified 2.33ct Colombian Emerald, Emerald Cut, Unisex, 1990
GIA Certified 2.33ct Colombian Emerald, Emerald Cut, Unisex, 1990

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...

Category

1990s Colombian Loose Gemstones

Materials

Emerald

2.14 cts, Untreated purple sapphire with a GIA certificate
2.14 cts, Untreated purple sapphire with a GIA certificate

2.14 cts, Untreated purple sapphire with a GIA certificate

By True Gems

Located in บางรัก, TH

Untreated purple sapphire with a GIA certificate sku07 Weight: 2.14 carats Size: 7.44x6.76x4.28 mm Origin: Sri Lanka

Category

21st Century and Contemporary Russian Arts and Crafts Loose Gemstones

Materials

Sapphire, Purple Sapphire

0.075 ct, Tiny vivid green faceted Russian demantoid garnet
0.075 ct, Tiny vivid green faceted Russian demantoid garnet

0.075 ct, Tiny vivid green faceted Russian demantoid garnet

By True Gems

Located in บางรัก, TH

Tiny vivid green faceted Russian demantoid garnet sku723 !!️Tagil, Bobrovka deposit = no treatments (no heating) Weight: 0.075 ct Diameter: 2.3 mm Everyone from gemsotne world kno...

Category

21st Century and Contemporary Russian Arts and Crafts Loose Gemstones

Materials

Garnet

WEEK LONG CLEARANCE, 2.30 Carat Round Shape Natural Diamond No treatments
WEEK LONG CLEARANCE, 2.30 Carat Round Shape Natural Diamond No treatments

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

Category

2010s American Loose Gemstones

Materials

Diamond, 14k Gold, Yellow Gold

4.78 cts, Russian alexandrite rough crystal, chrysoberyl raw crystal
4.78 cts, Russian alexandrite rough crystal, chrysoberyl raw crystal

4.78 cts, Russian alexandrite rough crystal, chrysoberyl raw crystal

By True Gems

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...

Category

21st Century and Contemporary Russian Arts and Crafts Loose Gemstones

Materials

Alexandrite, Chrysoberyl, Crystal

GIA Certified Natural Color change Blue Spinel 2.46 carat
GIA Certified Natural Color change Blue Spinel 2.46 carat

GIA Certified Natural Color change Blue Spinel 2.46 carat

Located in Brooklyn, NY

This unheated Blue color change spinel has exceptional brilliance and luster! Accompanied by Gemological Institute of America Report #1236945980, this gem weighs 2.46 carats and mea...

Category

2010s Sri Lankan Loose Gemstones

Materials

Spinel

1.24 cts, Drop Shape Tourmaline Rubellite Pair
1.24 cts, Drop Shape Tourmaline Rubellite Pair

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...

Category

21st Century and Contemporary Russian Arts and Crafts Loose Gemstones

Materials

Tourmaline

2.05 cts, Faceted Mahenge pinkish red spinel
2.05 cts, Faceted Mahenge pinkish red spinel

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

Category

21st Century and Contemporary Russian Arts and Crafts Loose Gemstones

Materials

Spinel

WHOLESALE VALUE, 2.22 Carat Round Shape Natural Diamond No treatments
WHOLESALE VALUE, 2.22 Carat Round Shape Natural Diamond No treatments

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 j , Clarity i3 Measurement 8.3 mm stone Nice cut Excellent shine and face-up

Category

2010s American Loose Gemstones

Materials

Diamond, 14k Gold, Yellow Gold

Fine Natural Aquamarine Beryl 2.38 Carat – Madagascar – Collector Quality Gem
Fine Natural Aquamarine Beryl 2.38 Carat – Madagascar – Collector Quality Gem

Fine Natural Aquamarine Beryl 2.38 Carat – Madagascar – Collector Quality Gem

Located in Peshawar, PK

Experience the elegance of this natural Aquamarine gemstone, weighing an impressive 2.38 carats and sourced from the renowned gemstone regions of Madagascar. Known for its rich, blue...

Category

2010s Malagasy Modern Loose Gemstones

Materials

Aquamarine

Certified 1.30ct Oval Paraiba Tourmaline, 7.02x5.79x4.39 mm
Certified 1.30ct Oval Paraiba Tourmaline, 7.02x5.79x4.39 mm

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...

Category

21st Century and Contemporary Mozambican Artisan Loose Gemstones

Materials

Tourmaline, Paraiba

3.16 cts, Untreated violet sapphire with a GIA certificate
3.16 cts, Untreated violet sapphire with a GIA certificate

3.16 cts, Untreated violet sapphire with a GIA certificate

By True Gems

Located in บางรัก, TH

Untreated violet sapphire with a GIA certificate sku01 Weight: 3.16 carats Size: 8.23×7.02×6.13 mm Origin: Sri Lanka

Category

21st Century and Contemporary Russian Arts and Crafts Loose Gemstones

Materials

Sapphire

3.95 Carat Natural Loose Pink Tourmaline Emerald Shape Gemstone
3.95 Carat Natural Loose Pink Tourmaline Emerald Shape Gemstone

3.95 Carat Natural Loose Pink Tourmaline Emerald Shape Gemstone

By Gilt Gemstone

Located in Peshawar, PK

Faceted Pink Tourmaline Weight: 3.95 Carat Dimension: 11.9 x 7 x 5.7 Mm Colour: Pink Origin: Afghanistan Treatment: Non Certificate: On Customer Demand Tourmaline is a capti...

Category

21st Century and Contemporary Afghan Arts and Crafts Loose Gemstones

Materials

Tourmaline, Other

GIA Certified 53.64ct Oval Carved Double Cabochon Emerald, Green
GIA Certified 53.64ct Oval Carved Double Cabochon Emerald, Green

GIA Certified 53.64ct Oval Carved Double Cabochon Emerald, Green

Located in New York, NY

An oval carved double-sided cabochon emerald weighing 53.64 carats, certified by GIA (Gemological Institute of America), can be considered rare and valuable Comments: Due to their gr...

Category

Early 20th Century Colombian Contemporary Loose Gemstones

Materials

Emerald

2.42 cts, Faceted pink tourmaline
2.42 cts, Faceted pink tourmaline

2.42 cts, Faceted pink tourmaline

By True Gems

Located in บางรัก, TH

Faceted pink tourmaline sku753 Weight: 2.42 cts Size: 7.65x6x5.9 mm Cushion cut Origin: Afghanistan

Category

21st Century and Contemporary Russian Arts and Crafts Loose Gemstones

Materials

Tourmaline

GIA Certified 1.03ct Colombian Emerald, Emerald Cut, Unisex, 1990
GIA Certified 1.03ct Colombian Emerald, Emerald Cut, Unisex, 1990

GIA Certified 1.03ct Colombian Emerald, Emerald Cut, Unisex, 1990

Located in Brooklyn, NY

Stone: Colombian Emerald Total Weight: 1.03 carat Shape: Octagonal Cut Clarity: Transparent Luster: Very Good Color: Medium Bluish Green Measurements: 7.18 mm x 5.45 mm x 3.84 mm Ge...

Category

1990s Colombian Loose Gemstones

Materials

Emerald

GIA Certified 1.39ct Colombian Emerald, Octagonal Cut, Unisex, 1990
GIA Certified 1.39ct Colombian Emerald, Octagonal Cut, Unisex, 1990

GIA Certified 1.39ct Colombian Emerald, Octagonal Cut, Unisex, 1990

Located in Brooklyn, NY

Stone: Colombian Emerald Total Weight: 1.39 carat Shape: Octagonal Cut Clarity: Transparent Luster: Very Good Color: Medium Bluish Green Measurements: 6.93 mm x 6.47 mm x 4.55 mm G...

Category

1990s Colombian Loose Gemstones

Materials

Emerald

7.10 Carat Natural Loose Fire Effect Sphene Cushion Cut Madagascar's Gemstone
7.10 Carat Natural Loose Fire Effect Sphene Cushion Cut Madagascar's Gemstone

7.10 Carat Natural Loose Fire Effect Sphene Cushion Cut Madagascar's Gemstone

Located in Bangkok, TH

Weight 7.10 carat Dimensions 13.1x9.6x6.9mm Treatment None Origin Madagascar Clarity VVS Shape Cut Cushion AG102 Elevate your fine jewelry collection or investment portfolio with this breathtaking 7.10-carat natural loose cushion-cut sphene from Madagascar. Famed for an intense optical display...

Category

21st Century and Contemporary Malagasy Modern Loose Gemstones

Materials

Other

43.30 Cts, Collectible Russian alexandrite specimen
43.30 Cts, Collectible Russian alexandrite specimen

43.30 Cts, Collectible Russian alexandrite specimen

By True Gems

Located in บางรัก, TH

Collectible Russian alexandrite specimen sku808 Size: 29.6 x 16.5 x 11.7 mm Weight: 43.30 ct Can use for jewelry and put this stone into the ring or pendant Mined at Malyshevskoye de...

Category

21st Century and Contemporary Russian Arts and Crafts Loose Gemstones

Materials

Alexandrite, Chrysoberyl, Crystal

Fine Natural Aquamarine Beryl 3.17 Carat – Madagascar – Collector Quality Gem
Fine Natural Aquamarine Beryl 3.17 Carat – Madagascar – Collector Quality Gem

Fine Natural Aquamarine Beryl 3.17 Carat – Madagascar – Collector Quality Gem

Located in Peshawar, PK

Experience the elegance of this natural Aquamarine gemstone, weighing an impressive 3.17 carats and sourced from the renowned gemstone regions of Madagascar. Known for its rich, deep...

Category

2010s Malagasy Modern Loose Gemstones

Materials

Aquamarine

4.64 ct, Faceted Blue Tourmaline Indicolite Gemstone
4.64 ct, Faceted Blue Tourmaline Indicolite Gemstone

4.64 ct, Faceted Blue Tourmaline Indicolite Gemstone

By True Gems

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

Category

21st Century and Contemporary Russian Arts and Crafts Loose Gemstones

Materials

Tourmaline, Indicolite

1.14ct Vietnam Blue Spinel Heart Shape (7x6.3x3.5mm)
1.14ct Vietnam Blue Spinel Heart Shape (7x6.3x3.5mm)

1.14ct Vietnam Blue Spinel Heart Shape (7x6.3x3.5mm)

Located in Singapore, SG

Grey Spinel: A New Trend in Colored Stones Grey spinel radiates contemporary elegance, combining bold character with cool sophistication, a gemstone that captures both refined chic ...

Category

21st Century and Contemporary Singaporean Art Deco Loose Gemstones

Materials

Spinel

1 carat, Faceted oval blue sapphire
1 carat, Faceted oval blue sapphire

1 carat, Faceted oval blue sapphire

By True Gems

Located in บางรัก, TH

Faceted oval blue sapphire sku776 Weight: 1 cts Size: 6.5x5.5x2.9 mm Color: blue Origin: Sri Lanka

Category

21st Century and Contemporary Russian Arts and Crafts Loose Gemstones

Materials

Blue Sapphire

GIA Certified 2.08ct Unheated Red Spinel Cushion Cut Gemstone, Myanmar
GIA Certified 2.08ct Unheated Red Spinel Cushion Cut Gemstone, Myanmar

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 ...

Category

2010s Burmese Loose Gemstones

Materials

Spinel

3.01 ct Oval Natural Diamond, D, VS1, Excellent Cut
3.01 ct Oval Natural Diamond, D, VS1, Excellent Cut

3.01 ct Oval Natural Diamond, D, VS1, Excellent Cut

Located in Dubai, AE

This 3.01-carat oval natural loose diamond is ideal for engagement rings and fine jewelry, featuring a brilliant D color grade, VS1 clarity, and GIA certification that you can verify...

Category

21st Century and Contemporary Chinese Loose Gemstones

Materials

Diamond, White Diamond

Faceted indicolite blue tourmaline 7.4 ct
Faceted indicolite blue tourmaline 7.4 ct

Faceted indicolite blue tourmaline 7.4 ct

By True Gems

Located in บางรัก, TH

Faceted indicolite blue tourmaline TRU0013 Weight: 7.4 ct Size: 17x8x5.8 mm Origin: Afghanistan, Kunar mine

Category

21st Century and Contemporary Russian Arts and Crafts Loose Gemstones

Materials

Tourmaline, Indicolite

3.90 Carat Natural Loose Sapphire Lot For Jewellery Making
3.90 Carat Natural Loose Sapphire Lot For Jewellery Making

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...

Category

21st Century and Contemporary Malagasy Arts and Crafts Loose Gemstones

Materials

Sapphire, Other

Natural Madagascar Sphene (Titanite) 23.45 Carat – Cushion Cut Rainbow Fire
Natural Madagascar Sphene (Titanite) 23.45 Carat – Cushion Cut Rainbow Fire

Natural Madagascar Sphene (Titanite) 23.45 Carat – Cushion Cut Rainbow Fire

Located in Peshawar, PK

Bring extraordinary brilliance to your gemstone collection with this Natural Madagascar Sphene (Titanite) weighing 23.45 carats. Expertly precision cut into a striking rectangular fa...

Category

2010s Malagasy Modern Loose Gemstones

Materials

Other

Loose Gemstones for Sale on 1stDibs

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.