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Oval Faceted Imitation Sapphire, Synthetic Spinel (September)
Otto FreiMimicking 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 detailsOval Faceted Lab-Created Blue Sapphire
Otto Frei5.0 / 5.0
1 Review
These oval faceted lab-created blue sapphires are composed of man-made corundum sharing the same chemical composition and physical durability as na...
View full detailsOval Faceted Lab-Created Emerald
Otto Frei5.0 / 5.0
1 Review
Composed of man-made beryl with the same chemical composition as natural emerald, this oval faceted lab-created emerald offers exceptional clarity ...
View full detailsOval Faceted Lab-Created Light Blue Sapphire
Otto FreiComposed of man-made corundum with the same chemical composition and durability as natural sapphire, these oval faceted lab-created light blue sapp...
View full detailsOval Faceted Lab-Created Ruby
Otto Frei5.0 / 5.0
1 Review
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 detailsOval Faceted Sunstone
Otto FreiOregon Sunstone is a natural, all-American gem, sourced exclusively from mines in the state of Oregon and sold without any treatment. A member of t...
View full detailsOval Faceted Tanzanite
SwarovskiTanzanite is found in only one location in the entire world — Tanzania, in Eastern Africa. Discovered in 1962, tanzanite is a relative newcomer on ...
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 detailsOval Flat Top Double Bevel Genuine Black Onyx With Hole
Otto FreiBlack Onyx, also known as black agate, is dyed black chalcedony. Chalcedony is composed of microscopic quartz crystals that are not visible to the ...
View full detailsOval Genuine 10mm x 8mm Muonionalusta Meteorite Cabochon
Otto FreiThe Muonionalusta Meteorite Cabochon is a rare and extraordinary gemstone material sourced from one of the oldest known meteorites on Earth. This i...
View full detailsOval Genuine 10x8mm Nephrite Jade Cabochon
Otto FreiOval Genuine 10x8mm Nephrite Jade Cabochon is a natural stone cabochon ideal for setting into rings, pendants, brooches, and other fine jewelry pro...
View full detailsOval Genuine 11x9mm Nephrite Jade Cabochon
Otto FreiOval Genuine 11x9mm Nephrite Jade Cabochon brings the rich, earthy character of authentic nephrite jade to your jewelry designs. Each cabochon feat...
View full detailsOval Genuine 12mm x 10mm Muonionalusta Meteorite Cabochon
Otto FreiThe 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 detailsOval Genuine 12x10mm Nephrite Jade Cabochon
Otto FreiOval Genuine 12x10mm Nephrite Jade Cabochon is a natural stone cabochon cut to a classic oval profile, ideal for setting in rings, pendants, brooch...
View full detailsOval Genuine 14mm x 10mm Muonionalusta Meteorite Cabochon
Otto FreiThe 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 detailsOval Genuine 14x10mm Nephrite Jade Cabochon
Otto FreiOval Genuine 14x10mm Nephrite Jade Cabochon is a natural gemstone cabochon suited for professional jewelers, metalsmiths, and designers seeking a c...
View full detailsOval Genuine 16mm x 12mm Muonionalusta Meteorite Cabochon
Otto FreiThe Muonionalusta Meteorite Cabochon is a rare and remarkable gemstone material sourced from one of Earth's oldest known meteorite strikes. This ir...
View full detailsOval Genuine 8mm x 6mm Muonionalusta Meteorite Cabochon
Otto FreiThe 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 detailsOval Genuine 9x7mm Nephrite Jade Cabochon
Otto FreiOval Genuine 9x7mm Nephrite Jade Cabochon is a classic cut stone for jewelers and metalsmiths seeking a natural, ready-to-set gem. Each cabochon fe...
View full detailsOval Genuine Amethyst Cabochon
Otto Frei5.0 / 5.0
1 Review
Amethyst has captivated gem enthusiasts and jewelers for centuries — early Greeks believed its rich purple hue could prevent drunkenness, lending t...
View full detailsOval Genuine Aquamarine Cabochon
Otto FreiAquamarine takes its name from the Latin for "sea water," displaying a cool blue that ranges from greenish blue to blue-green. A member of the Bery...
View full detailsOval Genuine Azurite Cabochon
Otto FreiAzurite 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 detailsOval Genuine Blue Sapphire Cabochon
Otto FreiSapphire is one of the most popular colored stones in the United States, prized for its extraordinary durability and suitability for everyday wear....
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 detailsOval 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 Genuine Faceted Garnet
Otto FreiGarnet is a set of closely related minerals sharing the same crystal structure while varying in chemical composition. Red is the most common and ab...
View full detailsOval Genuine Garnet Cabochon
Otto Frei5.0 / 5.0
1 Review
Garnet is a set of closely related minerals that share the same crystal structure while varying in chemical composition. Red is the most common and...
View full detailsOval Genuine Hematite Cabochon
Otto FreiHematite is composed of iron oxide and exhibits a distinctive shiny, metallic luster that sets it apart from other gemstones. A traditional favorit...
View full detailsOval Genuine Iolite Cabochon
Otto FreiIolite 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 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 detailsOval Genuine Lapis Lazuli Cabochon, High Quality
Otto FreiLapis 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 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 Genuine Peridot Cabochon
Otto FreiNamed by the Egyptians as the "gem of the sun," peridot is one of the few gemstones found in only one color — a distinctive yellowish green to gree...
View full detailsOval Genuine Pink Opal Cabochon
Otto FreiOpal is the world's most popular phenomenal gemstone, with many cultures believing that opals have supernatural origins and powers. These Oval Genu...
View full detailsOval Genuine Red Aventurine Cabochon
Otto FreiOval genuine red aventurine cabochons are a striking choice for jewelers and metalsmiths seeking a natural stone with rich color and sparkling visu...
View full detailsOval Genuine Ruby Cabochon
Otto FreiKnown 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...
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