Skip to content

Gemstones

Filters

$0 – $830

Closeout Labradorite Cabochon - Oval

Otto Frei
Part # Varies
Original price $7.00 - Original price $44.80
Original price $7.00 - Original price $44.80
Original price $7.00
$5.00 - $32.00
$5.00 - $32.00
Current price $5.00

When light strikes this oval labradorite cabochon, an iridescent shimmer of spectral colors — commonly blue and green — dances across the surface i...

View full details
Original price $7.00 - Original price $44.80
Original price $7.00 - Original price $44.80
Original price $7.00
$5.00 - $32.00
$5.00 - $32.00
Current price $5.00
10+ Supplies & Gravers, Get 12% Off

Oval Rose Quartz Cabochon

Otto Frei
Part # Varies
Original price $3.75 - Original price $12.65
Original price
$3.75 - $12.65
$3.75 - $12.65
Current price $3.75

Rose Quartz derives its name from its distinctive pastel pink appearance, ranging from very light to medium-dark pink. Known as the "love stone," t...

View full details
Original price $3.75 - Original price $12.65
Original price
$3.75 - $12.65
$3.75 - $12.65
Current price $3.75
10+ Supplies & Gravers, Get 12% Off

Emerald Faceted Cubic Zirconia

Otto Frei
Part # Varies
Original price $2.50 - Original price $16.00
Original price
$2.50 - $16.00
$2.50 - $16.00
Current price $2.50

Emerald faceted cubic zirconia offers jewelers and metalsmiths a brilliant, affordable alternative to precious gemstones. These man-made stones del...

View full details
Original price $2.50 - Original price $16.00
Original price
$2.50 - $16.00
$2.50 - $16.00
Current price $2.50
10+ Supplies & Gravers, Get 12% Off

Oval Green Moss Agate Cabochon

Otto Frei
Part # Varies
Original price $3.60 - Original price $24.00
Original price
$3.60 - $24.00
$3.60 - $24.00
Current price $3.60

Agate is a type of chalcedony characterized by curved and angular bands of color that vary in hue and transparency. From patterns of lace, moss, an...

View full details
Original price $3.60 - Original price $24.00
Original price
$3.60 - $24.00
$3.60 - $24.00
Current price $3.60
10+ Supplies & Gravers, Get 12% Off

Oval Faceted Cubic Zirconia

Otto Frei
Part # Varies
Original price $2.25 - Original price $23.00
Original price
$2.25 - $23.00
$2.25 - $23.00
Current price $2.25

Cubic zirconia is a man-made gemstone that offers an affordable alternative to precious gemstones and is suitable for everyday wear. These oval fac...

View full details
Original price $2.25 - Original price $23.00
Original price
$2.25 - $23.00
$2.25 - $23.00
Current price $2.25
10+ Supplies & Gravers, Get 12% Off

Oval Genuine Hematite Cabochon

Otto Frei
Part # Varies
Original price $1.80 - Original price $2.40
Original price
$1.80 - $2.40
$1.80 - $2.40
Current price $1.80

Hematite is composed of iron oxide and exhibits a distinctive shiny, metallic luster that sets it apart from other gemstones. A traditional favorit...

View full details
Original price $1.80 - Original price $2.40
Original price
$1.80 - $2.40
$1.80 - $2.40
Current price $1.80
10+ Supplies & Gravers, Get 12% Off

Oval Red Jasper Cabochon

Otto Frei
Part # Varies
Original price $2.00 - Original price $6.65
Original price
$2.00 - $6.65
$2.00 - $6.65
Current price $2.00

Jasper is an opaque chalcedony displaying a rich variety of colors and patterns, making each stone a truly unique, one-of-a-kind specimen. These ov...

View full details
Original price $2.00 - Original price $6.65
Original price
$2.00 - $6.65
$2.00 - $6.65
Current price $2.00
10+ Supplies & Gravers, Get 12% Off

Oval Faceted Lab-Created Ruby

Otto Frei
Part # Varies
Original price $2.40 - Original price $9.00
Original price
$2.40 - $9.00
$2.40 - $9.00
Current price $2.40

Composed of man-made corundum with the same chemical composition and durability as natural ruby, these oval faceted lab-created rubies offer excell...

View full details
Original price $2.40 - Original price $9.00
Original price
$2.40 - $9.00
$2.40 - $9.00
Current price $2.40
10+ Supplies & Gravers, Get 12% Off

Oval Carnelian Cabochon

Otto Frei
Part # Varies
Original price $2.50 - Original price $8.00
Original price
$2.50 - $8.00
$2.50 - $8.00
Current price $2.50

Carnelian is part of the Chalcedony family, ranging from brownish orange to orange-red. Chalcedony is composed of tiny crystals of quartz not visib...

View full details
Original price $2.50 - Original price $8.00
Original price
$2.50 - $8.00
$2.50 - $8.00
Current price $2.50
10+ Supplies & Gravers, Get 12% Off

Oval Cabochon Malachite

Otto Frei
Part # Varies
Original price $2.50 - Original price $10.20
Original price
$2.50 - $10.20
$2.50 - $10.20
Current price $2.50

From bulls-eyes to straight and curved bands, Malachite is a distinctive, unique, and easily recognizable gemstone. Ranging from opaque bluish gree...

View full details
Original price $2.50 - Original price $10.20
Original price
$2.50 - $10.20
$2.50 - $10.20
Current price $2.50
10+ Supplies & Gravers, Get 12% Off

Oval Synthetic Ocean Blue Zircon Spinel

Otto Frei
Part # Varies
Original price $2.00 - Original price $12.20
Original price
$2.00 - $12.20
$2.00 - $12.20
Current price $2.00

Oval Synthetic Ocean Blue Zircon Spinel offers jewelers and metalsmiths a vibrant, lab-created gemstone alternative with the rich ocean blue color ...

View full details
Original price $2.00 - Original price $12.20
Original price
$2.00 - $12.20
$2.00 - $12.20
Current price $2.00
10+ Supplies & Gravers, Get 12% Off

Oval Amber Cabochon

Otto Frei
Part # Varies
Original price $3.18 - Original price $62.80
Original price
$3.18 - $62.80
$3.18 - $62.80
Current price $3.18

Amber is an organic gem formed millions of years ago when sap from ancient pine trees hardened and fossilized. Amber artifacts date back to 10,000 ...

View full details
Original price $3.18 - Original price $62.80
Original price
$3.18 - $62.80
$3.18 - $62.80
Current price $3.18
10+ Supplies & Gravers, Get 12% Off

Oval Lab-Created Ruby Cabochon

Otto Frei
Part # Varies
Original price $5.00 - Original price $12.00
Original price
$5.00 - $12.00
$5.00 - $12.00
Current price $5.00

Composed of man-made corundum with the same chemical composition and durability as natural ruby, these oval lab-created ruby cabochons offer excell...

View full details
Original price $5.00 - Original price $12.00
Original price
$5.00 - $12.00
$5.00 - $12.00
Current price $5.00
10+ Supplies & Gravers, Get 12% Off

Oval Black Onyx Cabochon

Otto Frei
Part # Varies
Original price $0.60 - Original price $8.00
Original price
$0.60 - $8.00
$0.60 - $8.00
Current price $0.60

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

View full details
Original price $0.60 - Original price $8.00
Original price
$0.60 - $8.00
$0.60 - $8.00
Current price $0.60
10+ Supplies & Gravers, Get 12% Off

Oval Genuine Lapis Lazuli Cabochon, High Quality

Otto Frei
Part # Varies
Original price $4.45 - Original price $48.00
Original price
$4.45 - $48.00
$4.45 - $48.00
Current price $4.45

Lapis Lazuli has been mined in the mountains of Afghanistan for more than 6,000 years — home to the world's oldest known commercial gemstone mines....

View full details
Original price $4.45 - Original price $48.00
Original price
$4.45 - $48.00
$4.45 - $48.00
Current price $4.45
10+ Supplies & Gravers, Get 12% Off

Emerald/Octagon Faceted Lab-Created Ruby

Otto Frei
Part # Varies
Original price $3.15 - Original price $8.37
Original price
$3.15 - $8.37
$3.15 - $8.37
Current price $3.15

Cut in a classic emerald/octagon faceted shape, these lab-created rubies are composed of man-made corundum sharing the same chemical composition an...

View full details
Original price $3.15 - Original price $8.37
Original price
$3.15 - $8.37
$3.15 - $8.37
Current price $3.15
10+ Supplies & Gravers, Get 12% Off

Oval Lab-Created Blue Sapphire Cabochon

Otto Frei
Part # Varies
Original price $16.00 - Original price $36.00
Original price
$16.00 - $36.00
$16.00 - $36.00
Current price $16.00

These oval lab-created blue sapphire cabochons are composed of man-made corundum sharing the same chemical composition and durability as natural sa...

View full details
Original price $16.00 - Original price $36.00
Original price
$16.00 - $36.00
$16.00 - $36.00
Current price $16.00
10+ Supplies & Gravers, Get 12% Off

Bloodstone Oval Cabochon

Otto Frei
Part # Varies
Original price $2.55 - Original price $9.90
Original price
$2.55 - $9.90
$2.55 - $9.90
Current price $2.55

Bloodstone is a member of the Chalcedony family, prized for its opaque dark green to brownish green background accented by distinctive red and redd...

View full details
Original price $2.55 - Original price $9.90
Original price
$2.55 - $9.90
$2.55 - $9.90
Current price $2.55
10+ Supplies & Gravers, Get 12% Off

Oval Opal Triplet Cabochon

Otto Frei
Part # Varies
Original price $9.00 - Original price $95.00
Original price
$9.00 - $95.00
$9.00 - $95.00
Current price $9.00

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

View full details
Original price $9.00 - Original price $95.00
Original price
$9.00 - $95.00
$9.00 - $95.00
Current price $9.00
10+ Supplies & Gravers, Get 12% Off

Oval Blue Onyx Cabochon

Otto Frei
Part # Varies
Original price $1.40 - Original price $12.25
Original price
$1.40 - $12.25
$1.40 - $12.25
Current price $1.40

Blue onyx, also known as blue agate, is dyed chalcedony — a microcrystalline quartz prized by jewelers and gem artists for its smooth, uniform tran...

View full details
Original price $1.40 - Original price $12.25
Original price
$1.40 - $12.25
$1.40 - $12.25
Current price $1.40
10+ Supplies & Gravers, Get 12% Off

12mm x 10mm Oval Peach Moonstone Cabochon

Otto Frei
Part # 935-380
Original price $0.00 - Original price $0.00
Original price $0.00
$24.00
$24.00 - $24.00
Current price $24.00

Moonstone is a member of the feldspar group mineral orthoclase, consisting of alternating layers of the minerals albite and orthoclase. When light ...

View full details
Original price $0.00 - Original price $0.00
Original price $0.00
$24.00
$24.00 - $24.00
Current price $24.00
Sold out
10+ Supplies & Gravers, Get 12% Off

Oval Bumble Bee Jasper

Otto Frei
Part # Varies
Original price $4.90 - Original price $12.00
Original price
$4.90 - $12.00
$4.90 - $12.00
Current price $4.90

Bumble Bee Jasper cabochons display a striking array of yellows, blacks, greys, and oranges, making each stone a truly unique addition to any jewel...

View full details
Original price $4.90 - Original price $12.00
Original price
$4.90 - $12.00
$4.90 - $12.00
Current price $4.90
10+ Supplies & Gravers, Get 12% Off

Oval Tiger's-Eye Cabochon

Otto Frei
Part # Varies
Original price $0.60 - Original price $6.80
Original price
$0.60 - $6.80
$0.60 - $6.80
Current price $0.60

Tiger's Eye is a member of the quartz family and one of the most popular gemstones in the lapidary and jewelry trade — prized for its accessibility...

View full details
Original price $0.60 - Original price $6.80
Original price
$0.60 - $6.80
$0.60 - $6.80
Current price $0.60
10+ Supplies & Gravers, Get 12% Off

Oval Faceted Imitation Pink Tourmaline

Otto Frei
Part # Varies
Original price $3.00 - Original price $9.50
Original price
$3.00 - $9.50
$3.00 - $9.50
Current price $3.00

This pink tourmaline simulant is crafted from lab-created synthetic pink corundum, delivering a rich rose pink hue with the exceptional durability ...

View full details
Original price $3.00 - Original price $9.50
Original price
$3.00 - $9.50
$3.00 - $9.50
Current price $3.00
10+ Supplies & Gravers, Get 12% Off

Oval Faceted Imitation Sapphire

Otto Frei
Part # Varies
Original price $2.10 - Original price $11.40
Original price
$2.10 - $11.40
$2.10 - $11.40
Current price $2.10

Mimicking the royal blue color of natural sapphire, these oval faceted imitation sapphires are composed of lab-created blue spinel. Designed as a s...

View full details
Original price $2.10 - Original price $11.40
Original price
$2.10 - $11.40
$2.10 - $11.40
Current price $2.10
10+ Supplies & Gravers, Get 12% Off

Oval Faceted Imitation Emerald

Otto Frei
Part # Varies
Original price $2.00 - Original price $24.00
Original price
$2.00 - $24.00
$2.00 - $24.00
Current price $2.00

Displaying a rich emerald green, these oval faceted imitation emeralds are ideal for May birthstone jewelry and emerald simulant applications. Each...

View full details
Original price $2.00 - Original price $24.00
Original price
$2.00 - $24.00
$2.00 - $24.00
Current price $2.00
10+ Supplies & Gravers, Get 12% Off

Emerald Cut Faceted Imitation Sapphire

Otto Frei
Part # Varies
Original price $2.49 - Original price $13.65
Original price
$2.49 - $13.65
$2.49 - $13.65
Current price $2.49

Mimicking the royal blue color of natural sapphire, these emerald cut faceted imitation sapphires are composed of lab-created blue spinel. Offered ...

View full details
Original price $2.49 - Original price $13.65
Original price
$2.49 - $13.65
$2.49 - $13.65
Current price $2.49
10+ Supplies & Gravers, Get 12% Off

Oval Charoite Cabochon

Otto Frei
Part # Varies
Original price $5.25 - Original price $24.30
Original price
$5.25 - $24.30
$5.25 - $24.30
Current price $5.25

Charoite is a striking opaque purple gemstone featuring swirls, veins, and patches of black, gray, white, and brownish-orange. Found exclusively in...

View full details
Original price $5.25 - Original price $24.30
Original price
$5.25 - $24.30
$5.25 - $24.30
Current price $5.25
10+ Supplies & Gravers, Get 12% Off

Oval Flat Top Double Bevel Genuine Black Onyx

Otto Frei
Part # Varies
Original price $3.48 - Original price $6.00
Original price
$3.48 - $6.00
$3.48 - $6.00
Current price $3.48

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

View full details
Original price $3.48 - Original price $6.00
Original price
$3.48 - $6.00
$3.48 - $6.00
Current price $3.48
10+ Supplies & Gravers, Get 12% Off

Oval Unakite Cabochon

Otto Frei
Part # Varies
Original price $3.15 - Original price $8.00
Original price
$3.15 - $8.00
$3.15 - $8.00
Current price $3.15

Oval Unakite Cabochons offer jewelers and metalsmiths a striking natural stone with a rich, multi-toned palette. Unakite is an opaque stone compose...

View full details
Original price $3.15 - Original price $8.00
Original price
$3.15 - $8.00
$3.15 - $8.00
Current price $3.15
10+ Supplies & Gravers, Get 12% Off

Oval Genuine Iron Tiger Eye Cabochon

Otto Frei
Part # Varies
Original price $2.80 - Original price $10.50
Original price
$2.80 - $10.50
$2.80 - $10.50
Current price $2.80

Oval Genuine Iron Tiger Eye Cabochons offer jewelers and metalsmiths a natural stone option with the distinctive chatoyant shimmer characteristic o...

View full details
Original price $2.80 - Original price $10.50
Original price
$2.80 - $10.50
$2.80 - $10.50
Current price $2.80
10+ Supplies & Gravers, Get 12% Off

Oval Genuine Sodalite Cabochon

Otto Frei
Part # Varies
Original price $1.70 - Original price $8.00
Original price
$1.70 - $8.00
$1.70 - $8.00
Current price $1.70

These oval genuine sodalite cabochons offer a rich royal blue color that makes them a striking choice for rings, pendants, earrings, and other jewe...

View full details
Original price $1.70 - Original price $8.00
Original price
$1.70 - $8.00
$1.70 - $8.00
Current price $1.70
10+ Supplies & Gravers, Get 12% Off

Antique Buff Top Single Bevel Genuine Black Onyx

Otto Frei
Part # Varies
Original price $4.50 - Original price $6.00
Original price
$4.50 - $6.00
$4.50 - $6.00
Current price $4.50

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 $4.50 - Original price $6.00
Original price
$4.50 - $6.00
$4.50 - $6.00
Current price $4.50
10+ Supplies & Gravers, Get 12% Off

Oval Faceted Imitation Alexandrite

Otto Frei
Part # Varies
Original price $2.30 - Original price $10.80
Original price
$2.30 - $10.80
$2.30 - $10.80
Current price $2.30

This Alexandrite simulant is crafted from lab-created synthetic purple corundum, displaying a characteristic grayish purple color. With a hardness ...

View full details
Original price $2.30 - Original price $10.80
Original price
$2.30 - $10.80
$2.30 - $10.80
Current price $2.30
10+ Supplies & Gravers, Get 12% Off

Emerald Cut Faceted Imitation Blue Zircon

Otto Frei
Part # Varies
Original price $4.00 - Original price $15.50
Original price
$4.00 - $15.50
$4.00 - $15.50
Current price $4.00

This lab-created blue Spinel displays the ocean blue shade of zircon without its characteristic brittleness. Crafted as a zircon simulant, these em...

View full details
Original price $4.00 - Original price $15.50
Original price
$4.00 - $15.50
$4.00 - $15.50
Current price $4.00
10+ Supplies & Gravers, Get 12% Off

Emerald Cut Faceted Imitation PInk Tourmaline

Otto Frei
Part # Varies
Original price $4.90 - Original price $15.00
Original price
$4.90 - $15.00
$4.90 - $15.00
Current price $4.90

This Pink Tourmaline simulant is crafted from lab-created synthetic pink corundum, offering a rich rose pink hue that closely mimics the appearance...

View full details
Original price $4.90 - Original price $15.00
Original price
$4.90 - $15.00
$4.90 - $15.00
Current price $4.90