Skip to content

Gemstones

Filters

$0 $830
10+ Supplies & Gravers, Get 12% Off

Pear Faceted Genuine Aquamarine

Otto Frei
Part # Varies
Original price $34.00 - Original price $100.00
Original price
$34.00 - $100.00
$34.00 - $100.00
Current price $34.00

Aquamarine takes its name from the Latin for "sea water," and its color lives up to that heritage — a cool, translucent blue ranging from greenish ...

View full details
Original price $34.00 - Original price $100.00
Original price
$34.00 - $100.00
$34.00 - $100.00
Current price $34.00
10+ Supplies & Gravers, Get 12% Off

Marquise Faceted Genuine Aquamarine

Otto Frei
Part # Varies
Original price $17.00 - Original price $39.00
Original price
$17.00 - $39.00
$17.00 - $39.00
Current price $17.00

Aquamarine is derived from the Latin word for "sea water," displaying a cool blue that ranges from greenish blue to blue-green. Part of the Beryl f...

View full details
Original price $17.00 - Original price $39.00
Original price
$17.00 - $39.00
$17.00 - $39.00
Current price $17.00
10+ Supplies & Gravers, Get 12% Off

Oval Faceted Genuine Aquamarine

Otto Frei
Part # Varies
Original price $27.20 - Original price $108.44
Original price
$27.20 - $108.44
$27.20 - $108.44
Current price $27.20

Aquamarine takes its name from the Latin word for "sea water," displaying a cool blue that ranges from greenish blue to blue-green. These oval face...

View full details
Original price $27.20 - Original price $108.44
Original price
$27.20 - $108.44
$27.20 - $108.44
Current price $27.20
10+ Supplies & Gravers, Get 12% Off

Pear Faceted Genuine Amethyst

Otto Frei
Part # Varies
Original price $12.00 - Original price $15.40
Original price
$12.00 - $15.40
$12.00 - $15.40
Current price $12.00

Amethyst is the most popular and valuable stone in the quartz family, prized for its rich purple color that ranges from light lavender to medium-da...

View full details
Original price $12.00 - Original price $15.40
Original price
$12.00 - $15.40
$12.00 - $15.40
Current price $12.00
10+ Supplies & Gravers, Get 12% Off

Marquise Faceted Genuine Amethyst

Otto Frei
Part # Varies
Original price $6.80 - Original price $8.50
Original price
$6.80 - $8.50
$6.80 - $8.50
Current price $6.80

Amethyst has captivated gem enthusiasts and jewelers for centuries. Early Greeks believed the stone's deep purple hue could ward off intoxication —...

View full details
Original price $6.80 - Original price $8.50
Original price
$6.80 - $8.50
$6.80 - $8.50
Current price $6.80
10+ Supplies & Gravers, Get 12% Off

Round Red Coral Cabochon

Otto Frei
Part # Varies
Original price $6.00 - Original price $150.00
Original price
$6.00 - $150.00
$6.00 - $150.00
Current price $6.00

Coral is an organic gem, composed of the external skeletons of coral polyps. Formed from calcium carbonate with no crystal structure, coral has bee...

View full details
Original price $6.00 - Original price $150.00
Original price
$6.00 - $150.00
$6.00 - $150.00
Current price $6.00
10+ Supplies & Gravers, Get 12% Off

Oval Angel Skin Coral Cabochon

Otto Frei
Part # Varies
Original price $8.00 - Original price $60.00
Original price
$8.00 - $60.00
$8.00 - $60.00
Current price $8.00

Coral is an organic gem composed of the external skeletons of coral polyps. Unlike mineral gemstones, coral has no crystal structure and is made of...

View full details
Original price $8.00 - Original price $60.00
Original price
$8.00 - $60.00
$8.00 - $60.00
Current price $8.00
10+ Supplies & Gravers, Get 12% Off

Half-drilled Lapis Lazuli Tear Drop Pair, High Quality

Otto Frei
Part # Varies
Original price $35.00 - Original price $51.00
Original price
$35.00 - $51.00
$35.00 - $51.00
Current price $35.00

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...

View full details
Original price $35.00 - Original price $51.00
Original price
$35.00 - $51.00
$35.00 - $51.00
Current price $35.00
10+ Supplies & Gravers, Get 12% Off

Oval Genuine Blue Sapphire Cabochon

Otto Frei
Part # Varies
Original price $60.00 - Original price $186.83
Original price
$60.00 - $186.83
$60.00 - $186.83
Current price $60.00

Sapphire is one of the most popular colored stones in the United States, prized for its extraordinary durability and suitability for everyday wear....

View full details
Original price $60.00 - Original price $186.83
Original price
$60.00 - $186.83
$60.00 - $186.83
Current price $60.00
10+ Supplies & Gravers, Get 12% Off

Oval Genuine Emerald Cabochon

Otto Frei
Part # Varies
Original price $48.00 - Original price $70.00
Original price
$48.00 - $70.00
$48.00 - $70.00
Current price $48.00

Emerald is considered the world's finest green gemstone and has been highly prized and coveted for centuries, from Cleopatra to European royalty. E...

View full details
Original price $48.00 - Original price $70.00
Original price
$48.00 - $70.00
$48.00 - $70.00
Current price $48.00
10+ Supplies & Gravers, Get 12% Off

Oval Genuine Iolite Cabochon

Otto Frei
Part # Varies
Original price $11.25 - Original price $18.56
Original price
$11.25 - $18.56
$11.25 - $18.56
Current price $11.25

Iolite takes its name from the Greek word for violet, and the color delivers on that promise with a vivid violet-blue hue that catches the eye imme...

View full details
Original price $11.25 - Original price $18.56
Original price
$11.25 - $18.56
$11.25 - $18.56
Current price $11.25
10+ Supplies & Gravers, Get 12% Off

Round Genuine Iolite Cabochon

Otto Frei
Part # Varies
Original price $4.20 - Original price $12.00
Original price
$4.20 - $12.00
$4.20 - $12.00
Current price $4.20

Iolite is derived from the Greek word for violet, displaying a vivid violet-blue color. These round genuine iolite cabochons are strongly pleochroi...

View full details
Original price $4.20 - Original price $12.00
Original price
$4.20 - $12.00
$4.20 - $12.00
Current price $4.20
10+ Supplies & Gravers, Get 12% Off

Marquise Opal Triplet Cabochon

Otto Frei
Part # Varies
Original price $21.00 - Original price $38.75
Original price
$21.00 - $38.75
$21.00 - $38.75
Current price $21.00

Opal is the world's most popular phenomenal gemstone, with many cultures believing that opals have supernatural origins and power. These Marquise O...

View full details
Original price $21.00 - Original price $38.75
Original price
$21.00 - $38.75
$21.00 - $38.75
Current price $21.00
10+ Supplies & Gravers, Get 12% Off

Oval Genuine Ruby Cabochon

Otto Frei
Part # Varies
Original price $42.00 - Original price $100.00
Original price
$42.00 - $100.00
$42.00 - $100.00
Current price $42.00

Known as the King of Gems in Sanskrit, ruby is one of the most desired and valuable gemstones, prized as far back as biblical times. Ruby is the mo...

View full details
Original price $42.00 - Original price $100.00
Original price
$42.00 - $100.00
$42.00 - $100.00
Current price $42.00
10+ Supplies & Gravers, Get 12% Off

Pear Tiger's-Eye Cabochon

Otto Frei
Part # Varies
Original price $1.60 - Original price $5.00
Original price
$1.60 - $5.00
$1.60 - $5.00
Current price $1.60

Tiger's Eye is part of the quartz family and a consistently popular gem for jewelry making—readily available, inexpensive, and durable enough for e...

View full details
Original price $1.60 - Original price $5.00
Original price
$1.60 - $5.00
$1.60 - $5.00
Current price $1.60
10+ Supplies & Gravers, Get 12% Off

Antique Flat Top Double Bevel Genuine Black Onyx with Hole

Otto Frei
Part # 947-143
Original price $5.00 - Original price $5.00
Original price
$5.00
$5.00 - $5.00
Current price $5.00

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

View full details
Original price $5.00 - Original price $5.00
Original price
$5.00
$5.00 - $5.00
Current price $5.00
10+ Supplies & Gravers, Get 12% Off

Oval Rutilated Quartz Cabochon

Otto Frei
Part # Varies
Original price $14.00 - Original price $25.00
Original price
$14.00 - $25.00
$14.00 - $25.00
Current price $14.00

Oval Rutilated Quartz cabochons offer a striking combination of natural clarity and the distinctive needle-like inclusions of rutile that give this...

View full details
Original price $14.00 - Original price $25.00
Original price
$14.00 - $25.00
$14.00 - $25.00
Current price $14.00
10+ Supplies & Gravers, Get 12% Off

Oval Genuine Red Aventurine Cabochon

Otto Frei
Part # Varies
Original price $3.85 - Original price $6.20
Original price
$3.85 - $6.20
$3.85 - $6.20
Current price $3.85

Oval genuine red aventurine cabochons are a striking choice for jewelers and metalsmiths seeking a natural stone with rich color and sparkling visu...

View full details
Original price $3.85 - Original price $6.20
Original price
$3.85 - $6.20
$3.85 - $6.20
Current price $3.85
10+ Supplies & Gravers, Get 12% Off

Oval Genuine Azurite Cabochon

Otto Frei
Part # Varies
Original price $11.20 - Original price $32.00
Original price
$11.20 - $32.00
$11.20 - $32.00
Current price $11.20

Azurite Malachite is rarely found in calibrated sizes due to the unique nature of the stone and its distinctive green and blue coloration. This mat...

View full details
Original price $11.20 - Original price $32.00
Original price
$11.20 - $32.00
$11.20 - $32.00
Current price $11.20
10+ Supplies & Gravers, Get 12% Off

Round Genuine Blue Sapphire Cabochon

Otto Frei
Part # Varies
Original price $25.00 - Original price $92.00
Original price
$25.00 - $92.00
$25.00 - $92.00
Current price $25.00

Sapphire is one of the most popular colored stones in the United States, prized for its extraordinary durability and suitability for everyday wear....

View full details
Original price $25.00 - Original price $92.00
Original price
$25.00 - $92.00
$25.00 - $92.00
Current price $25.00
10+ Supplies & Gravers, Get 12% Off

Marquise Genuine Opal Cabochon

Otto Frei
Part # Varies
Original price $12.00 - Original price $58.00
Original price
$12.00 - $58.00
$12.00 - $58.00
Current price $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...

View full details
Original price $12.00 - Original price $58.00
Original price
$12.00 - $58.00
$12.00 - $58.00
Current price $12.00
10+ Supplies & Gravers, Get 12% Off

Round Faceted Cubic Zirconia-Large Sizes 8.5mm to 18.0mm

Otto Frei
Part # Varies
Original price $12.96 - Original price $44.20
Original price
$12.96 - $44.20
$12.96 - $44.20
Current price $12.96

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

View full details
Original price $12.96 - Original price $44.20
Original price
$12.96 - $44.20
$12.96 - $44.20
Current price $12.96
10+ Supplies & Gravers, Get 12% Off

Oval Picture Jasper Cabochon

Otto Frei
Part # 9CB-OV-003-BR-1813
Original price $9.00 - Original price $9.00
Original price
$9.00
$9.00 - $9.00
Current price $9.00

Jasper is an opaque chalcedony that can display a variety of colors and patterns, making each stone unique and one-of-a-kind. Picture Jasper tends ...

View full details
Original price $9.00 - Original price $9.00
Original price
$9.00
$9.00 - $9.00
Current price $9.00
10+ Supplies & Gravers, Get 12% Off

Heart Faceted Imitation Aquamarine

Otto Frei
Part # Varies
Original price $2.88 - Original price $3.55
Original price
$2.88 - $3.55
$2.88 - $3.55
Current price $2.88

Simulating the light sky blue of aquamarine, these heart-shaped faceted stones are composed of lab-created blue spinel. Designed as an aquamarine s...

View full details
Original price $2.88 - Original price $3.55
Original price
$2.88 - $3.55
$2.88 - $3.55
Current price $2.88
Sold out
10+ Supplies & Gravers, Get 12% Off

Heart Tiger's-Eye Cabochon

Otto Frei
Part # Varies
Original price $2.25 - Original price $4.25
Original price
$2.25 - $4.25
$2.25 - $4.25
Current price $2.25

Tiger's Eye is a member of the quartz family and one of the top-selling gemstones among jewelers and metalsmiths. Its enduring popularity stems fro...

View full details
Original price $2.25 - Original price $4.25
Original price
$2.25 - $4.25
$2.25 - $4.25
Current price $2.25

Closeout Pack of 25 Black Princess-Square 7x7mm Cubic Zirconia Hand Cut

Otto Frei
Part # 920-807
Original price $50.00
Original price $50.00 - Original price $50.00
Original price $50.00
Current price $15.50
$15.50 - $15.50
Current price $15.50
List Price: $50.00

Pick up a pack of 25 black princess-square cubic zirconia stones at closeout pricing. These 7×7mm CZs are B-quality, hand-cut stones — a practical ...

View full details
Original price $50.00
Original price $50.00 - Original price $50.00
Original price $50.00
Current price $15.50
$15.50 - $15.50
Current price $15.50
Sold out

Closeout Pack of 10 Black Princess-Square 9x9mm Cubic Zirconia Hand Cut

Otto Frei
Part # 920-809
Original price $40.00
Original price $40.00 - Original price $40.00
Original price $40.00
Current price $8.50
$8.50 - $8.50
Current price $8.50
List Price: $40.00

Take advantage of closeout pricing on this pack of 10 black princess-square cubic zirconia stones. These 9x9mm CZs are hand cut and graded B qualit...

View full details
Original price $40.00
Original price $40.00 - Original price $40.00
Original price $40.00
Current price $8.50
$8.50 - $8.50
Current price $8.50

Closeout Pack of 10 Black Princess-Square 10x10mm Cubic Zirconia Hand Cut

Otto Frei
Part # 920-810
Original price $57.00
Original price $57.00 - Original price $57.00
Original price $57.00
Current price $15.50
$15.50 - $15.50
Current price $15.50
List Price: $57.00

Take advantage of exceptional closeout pricing on these 10x10mm Black Princess-Square Cubic Zirconia stones. Sourced from a large closeout lot, the...

View full details
Original price $57.00
Original price $57.00 - Original price $57.00
Original price $57.00
Current price $15.50
$15.50 - $15.50
Current price $15.50
10+ Supplies & Gravers, Get 12% Off

Round Moissanite 4.5mm

Otto Frei
Part # 965-045
Original price $0.00 - Original price $0.00
Original price $0.00
$10.40
$10.40 - $10.40
Current price $10.40

Moissanite is an exceptional gemstone known for its extraordinary optical properties. All moissanite used in the jewelry industry is synthetic mate...

View full details
Original price $0.00 - Original price $0.00
Original price $0.00
$10.40
$10.40 - $10.40
Current price $10.40

Closeout Pack of 20 Trillion Cut Corner 9x9mm Cubic Zirconia

Otto Frei
Part # 999-099TN
Original price $120.00
Original price $120.00 - Original price $120.00
Original price $120.00
Current price $18.00
$18.00 - $18.00
Current price $18.00
List Price: $120.00

Pack of 20 Trillion Cut Corner 9×9mm Cubic Zirconia (CZ) — B quality, hand-cut colorless stones offered at closeout pricing while supplies last. Th...

View full details
Original price $120.00
Original price $120.00 - Original price $120.00
Original price $120.00
Current price $18.00
$18.00 - $18.00
Current price $18.00
10+ Supplies & Gravers, Get 12% Off

Oval Genuine 8mm x 6mm Muonionalusta Meteorite Cabochon

Otto Frei
Part # 935-034
Original price $0.00 - Original price $0.00
Original price $0.00
$53.75
$53.75 - $53.75
Current price $53.75

The Muonionalusta Meteorite is a rare iron meteorite that fell to Earth over one million years ago, originating from the core of a celestial body. ...

View full details
Original price $0.00 - Original price $0.00
Original price $0.00
$53.75
$53.75 - $53.75
Current price $53.75
10+ Supplies & Gravers, Get 12% Off

Oval Genuine 10mm x 8mm Muonionalusta Meteorite Cabochon

Otto Frei
Part # 935-038
Original price $0.00 - Original price $0.00
Original price $0.00
$64.75
$64.75 - $64.75
Current price $64.75

The Muonionalusta Meteorite Cabochon is a rare and extraordinary gemstone material sourced from one of the oldest known meteorites on Earth. This i...

View full details
Original price $0.00 - Original price $0.00
Original price $0.00
$64.75
$64.75 - $64.75
Current price $64.75
10+ Supplies & Gravers, Get 12% Off

Oval Genuine 12mm x 10mm Muonionalusta Meteorite Cabochon

Otto Frei
Part # 935-042
Original price $0.00 - Original price $0.00
Original price $0.00
$84.75
$84.75 - $84.75
Current price $84.75

The Muonionalusta Meteorite is a rare iron meteorite that fell to Earth over one million years ago, originating from the core of a celestial body. ...

View full details
Original price $0.00 - Original price $0.00
Original price $0.00
$84.75
$84.75 - $84.75
Current price $84.75
10+ Supplies & Gravers, Get 12% Off

Oval Genuine 14mm x 10mm Muonionalusta Meteorite Cabochon

Otto Frei
Part # 935-044
Original price $0.00 - Original price $0.00
Original price $0.00
$94.75
$94.75 - $94.75
Current price $94.75

The Muonionalusta Meteorite is a rare iron meteorite that fell to Earth over one million years ago, originating from the core of a celestial body. ...

View full details
Original price $0.00 - Original price $0.00
Original price $0.00
$94.75
$94.75 - $94.75
Current price $94.75
10+ Supplies & Gravers, Get 12% Off

Oval Genuine 16mm x 12mm Muonionalusta Meteorite Cabochon

Otto Frei
Part # 935-046
Original price $0.00 - Original price $0.00
Original price $0.00
$98.95
$98.95 - $98.95
Current price $98.95

The Muonionalusta Meteorite Cabochon is a rare and remarkable gemstone material sourced from one of Earth's oldest known meteorite strikes. This ir...

View full details
Original price $0.00 - Original price $0.00
Original price $0.00
$98.95
$98.95 - $98.95
Current price $98.95
Sold out
10+ Supplies & Gravers, Get 12% Off

Closeout Aletai Etched Meteorite-10 Gram Pack

Otto Frei
Part # 990-218
Original price $0.00 - Original price $0.00
Original price $0.00
$50.00
$50.00 - $50.00
Current price $50.00

The Aletai Meteorite is a genuine iron meteorite from the IIIE group, originating from Xinjiang, China. Each piece offers a rare glimpse into the f...

View full details
Original price $0.00 - Original price $0.00
Original price $0.00
$50.00
$50.00 - $50.00
Current price $50.00