Loose emeralds, sapphires and a ruby in a brass-rimmed suede jeweller's tray printed with the Avi The Gem Guy wordmark

Loose gemstones

The stone in the photo is the stone you get. Each one is graded and photographed on its own — buy it loose, or build a piece around it.

Updating gems
620 stones
Lab report
Octagonal emerald gemstone, bright green, faceted, 4.29 ct

4.29 Carat Colombian Emerald

Colombia · Clarity Enhanced / Oil · Yes report

$42,999.00
Lab reportSold
2.93-carat Colombian emerald gemstone, vivid green octagonal step cut

2.93 Carat Colombian Emerald

Colombia · No treatment · Yes report

Sold · ask about similar
Lab report
Octagonal emerald gemstone in vivid green with stepped faceted cut

3.25 Carat Colombian Emerald

Colombia · No treatment · Yes report

$64,999.00
Lab report
Two oval alexandrite gemstones on white, one dark teal, one purple

1.11 Carat Alexandrite - Brazil

Brazil · No treatment · Yes report

$16,699.00
Lab report
Purple sapphire gemstone, octagonal step facets

2.05 Carat No Heat Purple Sapphire - Sri Lanka

Sri Lanka · No treatment · Yes report

$5,199.00
Lab report
Octagonal emerald-cut green gemstone, brilliant faceted 1.82 carats

1.82 Carat Colombian Emerald

Colombia · Clarity Enhanced / Oil · Yes report

$18,299.00
Lab report
0.71 ct ruby gemstone, cushion cut, deep pink-red, no-heat

0.71 Carat No Heat Ruby - Madagascar

Madagascar · No treatment · Yes report

$2,699.00
Lab report
Round teal sapphire gemstone, high luster with faceted cut

4.34 Carat No Heat Teal Sapphire - Tanzania

Tanzania · No treatment · Yes report

$9,799.00
Lab report
Cushion-cut ruby gemstone in deep red, square face

1.51 Carat No Heat Ruby - Mozambique

Mozambique · No treatment · Yes report

$7,599.00
Lab report
Teal sapphire pear-cut gemstone with faceted surface

3.01 Carat No Heat Teal Sapphire - Tanzania

Tanzania · No treatment · Yes report

$4,599.00
Lab report
Square cushion-cut red ruby gemstone with faceted deep burgundy finish

2.01 Carat No Heat Ruby - Mozambique

Mozambique · No treatment · Yes report

$20,199.00
Lab report
Teal sapphire gemstone with octagonal step cut

4.02 Carat No Heat Teal Sapphire - GIA

No treatment · Yes report

$10,099.00
Lab report
Oval faceted pink sapphire gemstone with vivid magenta tone

1.59 Carat No Heat Pink Sapphire - Sri Lanka

Sri Lanka · No treatment · Yes report

$3,999.00
Lab reportSold
Cushion-cut sapphire gemstone with blue-to-purple color change and polished facets.

2.56 Carat No Heat Color Change Sapphire - Sri Lanka

Sri Lanka (Ceylon) · No treatment · Yes report

Sold · ask about similar
Lab report
Octagonal step-cut teal sapphire gemstone, faceted teal blue stone

2.03 Carat No Heat Teal Sapphire - Basalt Related

Australia · No treatment · Yes report

$3,999.00
Oval dark blue-black faceted gemstone

3.10 Carat No Heat Dark Blue Sapphire

No treatment

$1,399.00
Oval light-blue sapphire gemstone with faceted cut

1.35 Carat Light Blue Sapphire

Heat

$2,099.00
Sold
Square cushion-cut black diamond, faceted gemstone with dark luster

2.16 Carat Black Diamond

No treatment

Sold · ask about similar
Faceted pear-shaped yellow-brown diamond, 2.82 ct

2.82 Carat Yellow-Brown Diamond

No treatment

$1,000.00
Square black diamond gemstone, faceted in a cushion cut

2.88 Carat Black Diamond

No treatment

$899.00
Cushion-cut fancy yellow diamond with bright faceted sparkle

1.02 Carat Fancy Yellow Diamond

No treatment

$2,499.00
Teal sapphire pair, round brilliant faceted gemstones

3.80 Carat No Heat Teal Sapphire Pair

$7,699.00
Round teal sapphire gemstones, faceted brilliant cut, pair of two.

2.40 Carat No Heat Teal Sapphire Pair

$3,599.00
Teal sapphire gemstone, cushion cut, faceted

2.08 Carat No Heat Teal Sapphire

No treatment

$6,109.00$5,299.00
Sort by
  • Featured
  • Most relevant
  • Best selling
  • Alphabetically, A-Z
  • Alphabetically, Z-A
  • Price, low to high
  • Price, high to low
  • Date, old to new
  • Date, new to old

Buying a loose gemstone

Short answers to what people ask before buying a stone online.

How is it graded?

Every stone is examined by a gemologist and, where noted, backed by an independent lab report. The listing shows weight, measurements, origin and treatment.

Can I set it?

Yes. Choose any loose stone and start a custom ring, pendant or earrings around it. You approve a design before anything is made.

Start a custom piece

Can I see it first?

Book a live video viewing, or visit the showroom at 5 S. Wabash Ave, Suite 1010, Chicago by appointment.