Cabochons
Dome topped stones with flat backs, cut for bezel and channel settings. Genuine material such as onyx, turquoise, lapis lazuli, opal, tiger eye and malachite, alongside lab created sapphire and ruby and assembled opal triplets. Calibrated round and oval sizes run from 3 mm through 25 x 18 mm, with freeform closeout lots sold by weight.
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Oval Charoite Cabochon
Otto Frei5.0 / 5.0
1 Review
Charoite is a striking opaque purple gemstone featuring swirls, veins, and patches of black, gray, white, and brownish-orange. Found exclusively in...
View full detailsCushion Bumble Bee Jasper
Otto FreiBumble Bee Jasper comes from the volcanic areas of Indonesia and Australia. It displays a wonderful array of yellows, blacks, greys, and oranges. E...
View full details12mm x 10mm Oval Peach Moonstone Cabochon
Otto Frei5.0 / 5.0
1 Review
Moonstone is a member of the feldspar group mineral orthoclase, consisting of alternating layers of the minerals albite and orthoclase. When light ...
View full detailsRound Genuine Turquoise Cabochon (With Matrix)
Otto FreiTurquoise has been a prized gemstone across many cultures and civilizations, including Ancient Egyptians and Native Americans. Colored by copper, t...
View full detailsOval Genuine Citrine Cabochon
Otto FreiCitrine 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...
View full detailsRound Opal Triplet Cabochon
Otto FreiOpal is the world's most popular phenomenal gemstone, with many cultures believing that opals have supernatural origins and power. These Round Opal...
View full detailsOval Denim Lapis Cabochon
Otto FreiLapis 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...
View full detailsOval Genuine Opal Cabochon
Otto FreiOpal is the world's most popular phenomenal gemstone, with many cultures believing that opals had supernatural origins and power. Inside each opal,...
View full detailsOval Bumble Bee Jasper
Otto FreiBumble 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 detailsRound Peach Moonstone Cabochon
Otto FreiMoonstone is a member of the feldspar group mineral orthoclase and consists of alternating layers of the minerals albite and orthoclase. When light...
View full detailsOval Lab-Created White Sapphire Cabochon
Otto FreiThe Oval Lab-Created White Sapphire Cabochon offers jewelers and metalsmiths a clean, versatile white stone for setting in rings, pendants, earring...
View full detailsOval Green Onxy Cabochon
Otto FreiGreen onyx, also known as green agate, is dyed chalcedony — a microcrystalline quartz prized by jewelers and metalsmiths for its uniform color, smo...
View full detailsPear Genuine Opal Cabochon
Otto Frei5.0 / 5.0
1 Review
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 detailsOval Genuine Sodalite Cabochon
Otto FreiThese 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 detailsRound Tiger's-Eye Cabochon
Otto FreiTiger'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 detailsRound Genuine Emerald Cabochon
Otto FreiEmerald 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 detailsOval Snowflake Obsidian Cabochon
Otto FreiSnowflake Obsidian is named for its patches of white inclusions that resemble snowflakes. Obsidian is a naturally occurring volcanic glass, typical...
View full detailsCloseout Pink Tourmaline 7mm x 5mm Cabochon
Otto FreiThis oval pink tourmaline cabochon measures approximately 7 × 5 mm and is offered as a closeout item. Natural tourmaline is prized for its exceptio...
View full detailsCloseout Bag of 3 Mixed Shaped Mexican Opals
Otto FreiThese Mexican opals are naturally encased in a sandstone-like matrix for an earthy, organic look. The surrounding matrix adds stability and makes e...
View full detailsRound Genuine Aquamarine Cabochon
Otto FreiAquamarine takes its name from the Latin for "sea water," and its cool, tranquil blue reflects that origin beautifully. Ranging from light to mediu...
View full detailsOval Genuine Iron Tiger Eye Cabochon
Otto FreiOval Genuine Iron Tiger Eye Cabochons offer jewelers and metalsmiths a natural stone option with the distinctive chatoyant shimmer characteristic o...
View full detailsRound Purple Mosaic Turquoise Cabochons
Otto FreiMosaic Purple Turquoise cabochons offer a striking visual appeal, combining the rich color of dyed Kingman American turquoise with an intricate bro...
View full detailsCloseout Chrome Tourmaline 5 Carat Cabochons Assorted Bag of 7-8 Stones
Otto FreiChrome Tourmaline cabochons offer a vivid chrome-green hue prized by custom jewelers, gemstone collectors, and lapidary artists. Each bag contains ...
View full detailsCloseout Assorted Bag of 3 Australian Boulder Opals
Otto FreiBoulder Opal is found exclusively in Queensland, Australia, where veins and patches of precious opal form within rugged brown ironstone boulders. T...
View full detailsCloseout No Opalescence Australian 10mm x 8mm Oval Boulder Opal
Otto FreiBoulder Opal is found exclusively in Queensland, Australia, where veins and patches of precious opal form within rugged brown ironstone boulders. T...
View full detailsAntique Buff Top Single Bevel Genuine Black Onyx
Otto FreiBlack 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 detailsOctagon Buff Top Double Bevel Genuine Black Onyx
Otto FreiBlack 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 detailsRound Denim Lapis Cabochon
Otto FreiLapis Lazuli has been mined in the mountains of Afghanistan for more than 6,000 years — these mountains are among the world's oldest known commerci...
View full detailsOval Taiwan Jade Cabochon
Otto FreiHighly prized since prehistoric times, jade has been used for many purposes beyond jewelry, including tools, religious artifacts, medicine, and mus...
View full detailsCloseout Green Tourmaline 6mm x 4mm Cabochon
Otto FreiThis oval green tourmaline cabochon measures approximately 6 × 4 mm and is offered as a closeout item. Tourmaline is prized for its exceptionally w...
View full detailsOval Flat Top Double Bevel Genuine Black Onyx
Otto FreiBlack 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 detailsRound High Domed Genuine Lapis Lazuli Cabochon, High Quality
Otto FreiLapis 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 detailsOval Rose Cut Genuine Hematite Cabochon
Otto FreiGenuine hematite cabochon in a classic oval rose cut, ideal for rings, pendants, cufflinks, and men's jewelry. Its black opaque body and bright met...
View full detailsOval Unakite Cabochon
Otto FreiOval Unakite Cabochons offer jewelers and metalsmiths a striking natural stone with a rich, multi-toned palette. Unakite is an opaque stone compose...
View full detailsCloseout Yellow Tourmaline 6mm x 4mm Cabochon
Otto Frei5.0 / 5.0
1 Review
This oval yellow tourmaline cabochon measures approximately 6 × 4 mm and is offered as a closeout. Tourmaline is prized for its exceptionally wide ...
View full detailsCloseout Rutilated Quartz Bulk Lot of 100 Carats
Otto FreiRutilated Quartz is clear, transparent quartz that contains eye-visible golden rutile inclusions. The rutile crystals form striking needle-like for...
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