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Gemstones

Loose stones for setting and repair work. Cabochons and faceted stones in genuine, lab created, simulated and assembled material, alongside diamonds, moissanite and cultured freshwater pearls. Round, oval, marquise, pear, emerald, heart, cushion, square and trillion shapes in calibrated millimeter sizes from 1 mm up. Filter by stone, shape, size and color to match an existing mounting.

Filtri

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Square Faceted Lab-Created Ruby

Otto Frei
Part # Varies
Prezzo originale $2.61 - Prezzo originale $4.05
Prezzo originale
$2.61 - $4.05
$2.61 - $4.05
Prezzo attuale $2.61

Composed of man-made corundum with the same chemical composition and durability as natural ruby, this square faceted lab-created ruby offers excell...

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Prezzo originale $2.61 - Prezzo originale $4.05
Prezzo originale
$2.61 - $4.05
$2.61 - $4.05
Prezzo attuale $2.61
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Pear Faceted Genuine Swiss Blue Topaz

Otto Frei
Part # Varies
Prezzo originale $7.00 - Prezzo originale $16.00
Prezzo originale
$7.00 - $16.00
$7.00 - $16.00
Prezzo attuale $7.00

Swiss Blue Topaz is the trade name used to describe a vivid medium to medium-dark blue hue of topaz. This gem is a great alternative to aquamarine,...

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Prezzo originale $7.00 - Prezzo originale $16.00
Prezzo originale
$7.00 - $16.00
$7.00 - $16.00
Prezzo attuale $7.00
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Oval Faceted Genuine Citrine

Otto Frei
Part # Varies
Prezzo originale $4.00 - Prezzo originale $13.60
Prezzo originale
$4.00 - $13.60
$4.00 - $13.60
Prezzo attuale $4.00

Citrine ranges from transparent yellow to brownish orange in color and takes its name from citron, a fruit related to the lemon. Most citrine is pr...

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Prezzo originale $4.00 - Prezzo originale $13.60
Prezzo originale
$4.00 - $13.60
$4.00 - $13.60
Prezzo attuale $4.00
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Oval Green Onxy Cabochon

Otto Frei
Part # Varies
Prezzo originale $1.50 - Prezzo originale $11.50
Prezzo originale
$1.50 - $11.50
$1.50 - $11.50
Prezzo attuale $1.50

Green onyx, also known as green agate, is dyed chalcedony — a microcrystalline quartz prized by jewelers and metalsmiths for its uniform color, smo...

Visualizza tutti i dettagli
Prezzo originale $1.50 - Prezzo originale $11.50
Prezzo originale
$1.50 - $11.50
$1.50 - $11.50
Prezzo attuale $1.50
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Oval Amazonite Cabochon

Otto Frei
Part # Varies
Prezzo originale $6.60 - Prezzo originale $24.00
Prezzo originale
$6.60 - $24.00
$6.60 - $24.00
Prezzo attuale $6.60

Named after the Amazon River that runs through Brazil, amazonite is a striking alternative to turquoise. Its distinctive blue-green color, grid-lik...

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Prezzo originale $6.60 - Prezzo originale $24.00
Prezzo originale
$6.60 - $24.00
$6.60 - $24.00
Prezzo attuale $6.60
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Round High Domed Genuine Lapis Lazuli Cabochon, High Quality

Otto Frei
Part # Varies
Prezzo originale $6.12 - Prezzo originale $11.68
Prezzo originale
$6.12 - $11.68
$6.12 - $11.68
Prezzo attuale $6.12

Lapis Lazuli has been mined in the mountains of Afghanistan for more than 6,000 years. In fact, these mountains are home to the world's oldest know...

Visualizza tutti i dettagli
Prezzo originale $6.12 - Prezzo originale $11.68
Prezzo originale
$6.12 - $11.68
$6.12 - $11.68
Prezzo attuale $6.12
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Round Snowflake Obsidian Cabochon

Otto Frei
Part # Varies
Prezzo originale $3.00 - Prezzo originale $4.20
Prezzo originale
$3.00 - $4.20
$3.00 - $4.20
Prezzo attuale $3.00

Snowflake Obsidian is named for its patches of white inclusions that resemble snowflakes. Obsidian is a naturally occurring volcanic glass, commonl...

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Prezzo originale $3.00 - Prezzo originale $4.20
Prezzo originale
$3.00 - $4.20
$3.00 - $4.20
Prezzo attuale $3.00
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Trillion Faceted Cubic Zirconia

Otto Frei
Part # Varies
Prezzo originale $2.20 - Prezzo originale $8.30
Prezzo originale
$2.20 - $8.30
$2.20 - $8.30
Prezzo attuale $2.20

Cubic Zirconia is a man-made gemstone that serves as an affordable alternative to precious gemstones and is suitable for everyday wear. Whether you...

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Prezzo originale $2.20 - Prezzo originale $8.30
Prezzo originale
$2.20 - $8.30
$2.20 - $8.30
Prezzo attuale $2.20
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Triangular Faceted Cubic Zirconia with Sharp Corners

Otto Frei
Part # Varies
Prezzo originale $3.57 - Prezzo originale $13.75
Prezzo originale
$3.57 - $13.75
$3.57 - $13.75
Prezzo attuale $3.57

Triangular Faceted Cubic Zirconia with Sharp Corners offers the dazzling brilliance and sparkle of a precision-cut gemstone at a fraction of the co...

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Prezzo originale $3.57 - Prezzo originale $13.75
Prezzo originale
$3.57 - $13.75
$3.57 - $13.75
Prezzo attuale $3.57
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Pear Genuine Opal Cabochon

Otto Frei
Part # Varies
Prezzo originale $12.00 - Prezzo originale $51.00
Prezzo originale
$12.00 - $51.00
$12.00 - $51.00
Prezzo attuale $12.00

Opal is the world's most popular phenomenal gemstone, with many cultures believing that opals have supernatural origins and power. Inside each opal...

Visualizza tutti i dettagli
Prezzo originale $12.00 - Prezzo originale $51.00
Prezzo originale
$12.00 - $51.00
$12.00 - $51.00
Prezzo attuale $12.00
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Antique Flat Top Single Bevel Genuine Black Onyx

Otto Frei
Part # Varies
Prezzo originale $7.00 - Prezzo originale $9.00
Prezzo originale
$7.00 - $9.00
$7.00 - $9.00
Prezzo attuale $7.00

Black Onyx, also known as black agate, is dyed black chalcedony. Chalcedony is composed of microscopic quartz crystals not visible to the naked eye...

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Prezzo originale $7.00 - Prezzo originale $9.00
Prezzo originale
$7.00 - $9.00
$7.00 - $9.00
Prezzo attuale $7.00
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Oval Faceted Imitation Aquamarine

Otto Frei
Part # Varies
Prezzo originale $2.40 - Prezzo originale $9.20
Prezzo originale
$2.40 - $9.20
$2.40 - $9.20
Prezzo attuale $2.40

Simulating the light sky blue of aquamarine, these oval faceted stones are composed of lab-created blue spinel. Crafted to calibrated dimensions, t...

Visualizza tutti i dettagli
Prezzo originale $2.40 - Prezzo originale $9.20
Prezzo originale
$2.40 - $9.20
$2.40 - $9.20
Prezzo attuale $2.40
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Oval Genuine Opal Cabochon

Otto Frei
Part # Varies
Prezzo originale $12.00 - Prezzo originale $140.00
Prezzo originale
$12.00 - $140.00
$12.00 - $140.00
Prezzo attuale $12.00

Opal is the world's most popular phenomenal gemstone, with many cultures believing that opals had supernatural origins and power. Inside each opal,...

Visualizza tutti i dettagli
Prezzo originale $12.00 - Prezzo originale $140.00
Prezzo originale
$12.00 - $140.00
$12.00 - $140.00
Prezzo attuale $12.00
Closeout: Sold As Is

Closeout Druzy Quartz White Opal Oval 20mm x 15mm

Otto Frei
Part # 939-320
Prezzo originale $36.05
Prezzo originale $36.05 - Prezzo originale $36.05
Prezzo originale $36.05
Prezzo attuale $25.75
$25.75 - $25.75
Prezzo attuale $25.75
List Price: $36.05

Druzy Quartz adds a colorful, glittery texture to any jewelry at an affordable cost. The term "Druzy" refers to clusters of tiny crystals that form...

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Prezzo originale $36.05
Prezzo originale $36.05 - Prezzo originale $36.05
Prezzo originale $36.05
Prezzo attuale $25.75
$25.75 - $25.75
Prezzo attuale $25.75
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Round Rose Cut Lab-Created 10mm Blue Sapphire

Otto Frei
Part # 910-990
Prezzo originale $0.00 - Prezzo originale $0.00
Prezzo originale $0.00
$40.00
$40.00 - $40.00
Prezzo attuale $40.00

This Round Rose Cut Lab-Created Blue Sapphire is composed of man-made corundum sharing the same chemical composition and physical durability as nat...

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Prezzo originale $0.00 - Prezzo originale $0.00
Prezzo originale $0.00
$40.00
$40.00 - $40.00
Prezzo attuale $40.00
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Oval Genuine Citrine Cabochon

Otto Frei
Part # Varies
Prezzo originale $6.00 - Prezzo originale $30.00
Prezzo originale
$6.00 - $30.00
$6.00 - $30.00
Prezzo attuale $6.00

Citrine ranges from transparent yellow to brownish orange in color and takes its name from citron, a fruit related to the lemon. Most citrine is pr...

Visualizza tutti i dettagli
Prezzo originale $6.00 - Prezzo originale $30.00
Prezzo originale
$6.00 - $30.00
$6.00 - $30.00
Prezzo attuale $6.00
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Oval Lab-Created White Sapphire Cabochon

Otto Frei
Part # Varies
Prezzo originale $4.75 - Prezzo originale $7.50
Prezzo originale
$4.75 - $7.50
$4.75 - $7.50
Prezzo attuale $4.75

The Oval Lab-Created White Sapphire Cabochon offers jewelers and metalsmiths a clean, versatile white stone for setting in rings, pendants, earring...

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Prezzo originale $4.75 - Prezzo originale $7.50
Prezzo originale
$4.75 - $7.50
$4.75 - $7.50
Prezzo attuale $4.75
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Marquise Faceted Imitation Emerald

Otto Frei
Part # Varies
Prezzo originale $2.40 - Prezzo originale $12.96
Prezzo originale
$2.40 - $12.96
$2.40 - $12.96
Prezzo attuale $2.40

Displaying a vivid emerald green, these Marquise Faceted Imitation Emeralds are ideal for May birthstone jewelry designs. Each stone is a lab-creat...

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Prezzo originale $2.40 - Prezzo originale $12.96
Prezzo originale
$2.40 - $12.96
$2.40 - $12.96
Prezzo attuale $2.40
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Heart Faceted Imitation Alexandrite

Otto Frei
Part # Varies
Prezzo originale $4.50 - Prezzo originale $5.75
Prezzo originale
$4.50 - $5.75
$4.50 - $5.75
Prezzo attuale $4.50

This alexandrite simulant is crafted from lab-created synthetic purple corundum, displaying a distinctive grayish purple color reminiscent of natur...

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Prezzo originale $4.50 - Prezzo originale $5.75
Prezzo originale
$4.50 - $5.75
$4.50 - $5.75
Prezzo attuale $4.50
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Emerald Cut Faceted Imitation Alexandrite

Otto Frei
Part # Varies
Prezzo originale $3.00 - Prezzo originale $14.25
Prezzo originale
$3.00 - $14.25
$3.00 - $14.25
Prezzo attuale $3.00

This Alexandrite simulant is crafted from lab-created synthetic purple corundum, displaying a grayish purple color characteristic of alexandrite im...

Visualizza tutti i dettagli
Prezzo originale $3.00 - Prezzo originale $14.25
Prezzo originale
$3.00 - $14.25
$3.00 - $14.25
Prezzo attuale $3.00
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Square Faceted Imitation Sapphire

Otto Frei
Part # Varies
Prezzo originale $2.20 - Prezzo originale $4.20
Prezzo originale
$2.20 - $4.20
$2.20 - $4.20
Prezzo attuale $2.20

Mimicking the rich royal blue of natural sapphire, these square faceted imitation sapphires are composed of lab-created blue spinel. Offering an af...

Visualizza tutti i dettagli
Prezzo originale $2.20 - Prezzo originale $4.20
Prezzo originale
$2.20 - $4.20
$2.20 - $4.20
Prezzo attuale $2.20
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Oval Denim Lapis Cabochon

Otto Frei
Part # Varies
Prezzo originale $3.50 - Prezzo originale $7.50
Prezzo originale
$3.50 - $7.50
$3.50 - $7.50
Prezzo attuale $3.50

Lapis Lazuli has been mined in the mountains of Afghanistan for more than 6,000 years — these mountains are the world's oldest known commercial gem...

Visualizza tutti i dettagli
Prezzo originale $3.50 - Prezzo originale $7.50
Prezzo originale
$3.50 - $7.50
$3.50 - $7.50
Prezzo attuale $3.50
Closeout: Sold As Is

Closeout 9mm x 7mm Oval Cat's-Eye Opal Cabochon

Otto Frei
Part # Varies
Prezzo originale $56.00 - Prezzo originale $65.80
Prezzo originale $56.00 - Prezzo originale $65.80
Prezzo originale $56.00
$40.00 - $47.00
$40.00 - $47.00
Prezzo attuale $40.00

Opal is the world's most popular phenomenal gemstone, with many cultures believing it possessed supernatural origins and power. While precious opal...

Visualizza tutti i dettagli
Prezzo originale $56.00 - Prezzo originale $65.80
Prezzo originale $56.00 - Prezzo originale $65.80
Prezzo originale $56.00
$40.00 - $47.00
$40.00 - $47.00
Prezzo attuale $40.00
10+ Supplies & Gravers, Get 12% Off

Oval Snowflake Obsidian Cabochon

Otto Frei
Part # Varies
Prezzo originale $2.64 - Prezzo originale $3.00
Prezzo originale
$2.64 - $3.00
$2.64 - $3.00
Prezzo attuale $2.64

Snowflake Obsidian is named for its patches of white inclusions that resemble snowflakes. Obsidian is a naturally occurring volcanic glass, typical...

Visualizza tutti i dettagli
Prezzo originale $2.64 - Prezzo originale $3.00
Prezzo originale
$2.64 - $3.00
$2.64 - $3.00
Prezzo attuale $2.64
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Emerald Moissanite - 8x6mm

Otto Frei
Part # 965-126
Prezzo originale $0.00 - Prezzo originale $0.00
Prezzo originale $0.00
$69.00
$69.00 - $69.00
Prezzo attuale $69.00

Moissanite in the jewelry industry is synthetic material. With one of the highest refractive indices and light dispersion ratings of any gemstone s...

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Prezzo originale $0.00 - Prezzo originale $0.00
Prezzo originale $0.00
$69.00
$69.00 - $69.00
Prezzo attuale $69.00
Closeout: Sold As Is

Rock Deco 3.5mm Diamond Pearls-Grey (N)

Otto Frei
Part # 977-035G
Prezzo originale $160.00
Prezzo originale $160.00 - Prezzo originale $160.00
Prezzo originale $160.00
Prezzo attuale $120.00
$120.00 - $120.00
Prezzo attuale $120.00
List Price: $160.00

These 3.5mm natural diamond pearls from Rock Deco are finely polished round spheres that showcase the unique character of genuine grey diamonds. Ea...

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Prezzo originale $160.00
Prezzo originale $160.00 - Prezzo originale $160.00
Prezzo originale $160.00
Prezzo attuale $120.00
$120.00 - $120.00
Prezzo attuale $120.00
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Pack-2 Round Created Diamond-2.25mm

Otto Frei
Part # 97C-225
Prezzo originale $0.00 - Prezzo originale $0.00
Prezzo originale $0.00
$19.95
$19.95 - $19.95
Prezzo attuale $19.95

Full cut round created diamond melee in 2.25mm, sold in a pack of 2. These HPHT-created diamonds deliver the brilliance and sparkle of natural diam...

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Prezzo originale $0.00 - Prezzo originale $0.00
Prezzo originale $0.00
$19.95
$19.95 - $19.95
Prezzo attuale $19.95
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Pack-10 Round Lab Grown Diamond-1.50mm

Otto Frei
Part # 97C-150
Prezzo originale $0.00 - Prezzo originale $0.00
Prezzo originale $0.00
$40.00
$40.00 - $40.00
Prezzo attuale $40.00

Elevate your jewelry designs with Full Cut Lab Grown Round Diamond Melee, sold in a convenient pack of 10. At 1.50mm, these precision-cut round dia...

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Prezzo originale $0.00 - Prezzo originale $0.00
Prezzo originale $0.00
$40.00
$40.00 - $40.00
Prezzo attuale $40.00
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Pack-10 Round Lab Grown Diamond-1.25mm

Otto Frei
Part # 97C-125
Prezzo originale $0.00 - Prezzo originale $0.00
Prezzo originale $0.00
$30.00
$30.00 - $30.00
Prezzo attuale $30.00

Elevate your designs with full-cut lab grown round diamond melee, sold in a convenient pack of 10. These 1.25mm stones are ideal for accent work al...

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Prezzo originale $0.00 - Prezzo originale $0.00
Prezzo originale $0.00
$30.00
$30.00 - $30.00
Prezzo attuale $30.00
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Pack-5 Rock Deco Natural Rose Cut Diamonds-2mm Yellow

Otto Frei
Part # 975-220
Prezzo originale $0.00 - Prezzo originale $0.00
Prezzo originale $0.00
$40.00
$40.00 - $40.00
Prezzo attuale $40.00

For the first time, jewelers and metalsmiths can purchase calibrated sizes of these natural rose cut diamonds in yellow. Please note that color wil...

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Prezzo originale $0.00 - Prezzo originale $0.00
Prezzo originale $0.00
$40.00
$40.00 - $40.00
Prezzo attuale $40.00
Esaurito
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Pack-3 Rock Deco Natural Rose Cut Diamonds-3mm White

Otto Frei
Part # 975-030
Prezzo originale $0.00 - Prezzo originale $0.00
Prezzo originale $0.00
$129.95
$129.95 - $129.95
Prezzo attuale $129.95

For the first time, you can buy calibrated sizes of these natural rose cut diamonds, now available in convenient packs of 3. These 3mm white rose c...

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Prezzo originale $0.00 - Prezzo originale $0.00
Prezzo originale $0.00
$129.95
$129.95 - $129.95
Prezzo attuale $129.95
Esaurito
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Triangular Faceted Cubic Zirconia with Cut Corners

Otto Frei
Part # Varies
Prezzo originale $2.15 - Prezzo originale $14.50
Prezzo originale
$2.15 - $14.50
$2.15 - $14.50
Prezzo attuale $2.15

Triangular faceted cubic zirconia with cut corners offers a brilliant, affordable alternative to precious gemstones — ideal for statement jewelry, ...

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Prezzo originale $2.15 - Prezzo originale $14.50
Prezzo originale
$2.15 - $14.50
$2.15 - $14.50
Prezzo attuale $2.15
10+ Supplies & Gravers, Get 12% Off

Round Genuine Lapis Lazuli Cabochon, High Quality

Otto Frei
Part # Varies
Prezzo originale $2.40 - Prezzo originale $22.40
Prezzo originale
$2.40 - $22.40
$2.40 - $22.40
Prezzo attuale $2.40

Lapis Lazuli has been mined in the mountains of Afghanistan for more than 6,000 years. In fact, these mountains are home to the world's oldest know...

Visualizza tutti i dettagli
Prezzo originale $2.40 - Prezzo originale $22.40
Prezzo originale
$2.40 - $22.40
$2.40 - $22.40
Prezzo attuale $2.40
10+ Supplies & Gravers, Get 12% Off

Octagon Buff Top Double Bevel Genuine Black Onyx

Otto Frei
Part # Varies
Prezzo originale $3.48 - Prezzo originale $6.25
Prezzo originale
$3.48 - $6.25
$3.48 - $6.25
Prezzo attuale $3.48

Black Onyx, also known as black agate, is dyed black chalcedony. Chalcedony is composed of microscopic quartz crystals not visible to the naked eye...

Visualizza tutti i dettagli
Prezzo originale $3.48 - Prezzo originale $6.25
Prezzo originale
$3.48 - $6.25
$3.48 - $6.25
Prezzo attuale $3.48
10+ Supplies & Gravers, Get 12% Off

Cushion Bumble Bee Jasper

Otto Frei
Part # Varies
Prezzo originale $4.50 - Prezzo originale $13.50
Prezzo originale
$4.50 - $13.50
$4.50 - $13.50
Prezzo attuale $4.50

Bumble Bee Jasper comes from the volcanic areas of Indonesia and Australia. It displays a wonderful array of yellows, blacks, greys, and oranges. E...

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Prezzo originale $4.50 - Prezzo originale $13.50
Prezzo originale
$4.50 - $13.50
$4.50 - $13.50
Prezzo attuale $4.50
10+ Supplies & Gravers, Get 12% Off

Oval Faceted Lab-Created Light Blue Sapphire

Otto Frei
Part # Varies
Prezzo originale $17.82 - Prezzo originale $22.95
Prezzo originale
$17.82 - $22.95
$17.82 - $22.95
Prezzo attuale $17.82

Composed of man-made corundum with the same chemical composition and durability as natural sapphire, these oval faceted lab-created light blue sapp...

Visualizza tutti i dettagli
Prezzo originale $17.82 - Prezzo originale $22.95
Prezzo originale
$17.82 - $22.95
$17.82 - $22.95
Prezzo attuale $17.82