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.
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Closeout-Round Swarovski Gemstonesâ„¢ Genuine Ice Blue Topaz
Swarovski5.0 / 5.0
2 Reviews
Swarovski Gemsâ„¢ Genuine Ice Blue Topaz elevates natural topaz with two proprietary enhancements: the patented Natural Brilliance Cut and the TCF (T...
View full detailsRound Faceted Imitation Sapphire
Otto Frei5.0 / 5.0
1 Review
Mimicking the rich royal blue of natural sapphire, these round faceted imitation sapphires are composed of lab-created blue spinel. Designed as a s...
View full detailsRound Faceted Lab-Created Blue Sapphire
Otto Frei5.0 / 5.0
2 Reviews
Composed of man-made corundum with the same chemical composition and durability as natural sapphire, these round faceted lab-created blue sapphires...
View full detailsOval Genuine Turquoise Cabochon (With Matrix)
Otto Frei3.0 / 5.0
1 Review
Turquoise has been a prized gemstone across many cultures and civilizations, including Ancient Egyptians and Native Americans. Revered for centurie...
View full detailsRound Faceted Imitation Blue Zircon
Otto FreiThis lab-created blue Spinel delivers the rich ocean blue hue characteristic of zircon, without zircon's inherent brittleness. Composed of syntheti...
View full detailsRound Faceted Imitation Aquamarine
Otto FreiThese round faceted imitation aquamarine stones simulate the light sky blue color of natural aquamarine and are composed of lab-created blue spinel...
View full detailsRound Lab-Created Blue Sapphire Cabochon
Otto FreiThese round lab-created blue sapphire cabochons are composed of man-made corundum sharing the same chemical composition and durability as natural s...
View full detailsCloseout-Round Swarovski Gemstonesâ„¢ Genuine Kashmir Blue Topaz
SwarovskiSwarovski Gemsâ„¢ Genuine Kashmir Blue Topaz elevates natural topaz through two proprietary innovations: the Natural Brilliance Cut and the TCF (Ther...
View full detailsOval Synthetic Ocean Blue Zircon Spinel
Otto FreiOval Synthetic Ocean Blue Zircon Spinel offers jewelers and metalsmiths a vibrant, lab-created gemstone alternative with the rich ocean blue color ...
View full detailsCloseout Pack of 6 Druzy Quartz Light Blue Round 8mm
Otto FreiDruzy Quartz adds a colorful, glittery texture to any jewelry design at an affordable cost. The term "Druzy" refers to clusters of tiny crystals th...
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 detailsRound Swiss Blue Topaz Cabochon
Otto FreiSwiss 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,...
View full detailsOval Sleeping Beauty Turquoise Cabochon
Otto FreiTurquoise has been a prized gemstone for many cultures and civilizations, including the Ancient Egyptians and Native Americans. Turquoise is heavil...
View full detailsRound Blue Onyx Cabochon
Otto FreiBlue onyx, also known as blue agate, is dyed chalcedony — a microcrystalline quartz whose fine crystal structure is invisible to the unaided eye. P...
View full detailsRound Faceted Tanzanite
Otto Frei2.0 / 5.0
1 Review
Tanzanite is found in only one location in the entire world — Tanzania, in Eastern Africa. Discovered in 1962, tanzanite is a relative newcomer to ...
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 Lab-Created Blue Sapphire Cabochon
Otto FreiThese oval lab-created blue sapphire cabochons are composed of man-made corundum sharing the same chemical composition and durability as natural sa...
View full detailsRound Sleeping Beauty Turquoise Cabochon
Otto FreiTurquoise has been a prized gemstone across many cultures and civilizations, from Ancient Egyptians to Native Americans. Found in Egyptian tombs an...
View full detailsRound Faceted Genuine Blue Sapphire
Otto Frei5.0 / 5.0
1 Review
Sapphire is one of the most popular colored gemstones in the United States, prized for its extraordinary durability and suitability for everyday we...
View full detailsRound Faceted Genuine Aquamarine
Otto FreiAquamarine takes its name from the Latin word for "sea water," displaying a cool blue that ranges from greenish blue to blue-green. A member of the...
View full detailsOval Blue Onyx Cabochon
Otto FreiBlue 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 detailsPear Faceted Imitation Blue Zircon
Otto FreiThis lab-created blue spinel displays the ocean blue shade of zircon without its characteristic brittleness. Crafted as a zircon simulant, these pe...
View full detailsOctagon Faceted Lab-Created Blue Sapphire
Otto FreiThese octagon faceted lab-created blue sapphires are composed of man-made corundum sharing the same chemical composition and physical durability as...
View full detailsOval Faceted Imitation Sapphire
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 detailsEmerald Cut Faceted Imitation Sapphire
Otto FreiMimicking the royal blue color of natural sapphire, these emerald cut faceted imitation sapphires are composed of lab-created blue spinel. Offered ...
View full detailsSquare Faceted Imitation Blue Zircon
Otto FreiThis lab-created blue Spinel displays the ocean blue shade of zircon without its characteristic brittleness. Composed of synthetic Spinel, these sq...
View full detailsSquare Faceted Imitation Aquamarine
Otto FreiSimulating the soft, light sky blue of natural Aquamarine, these square faceted stones are composed of lab-created Blue Spinel. Offered in calibrat...
View full detailsRound Faceted Genuine Sky Blue Topaz
Otto FreiSky Blue Topaz is the trade name used to describe a bright, light blue hue of topaz. This gem is a great alternative to aquamarine, offering more i...
View full detailsPear Faceted Imitation Sapphire
Otto FreiMimicking the royal blue color of natural sapphire, these pear faceted imitation sapphires are composed of lab-created blue spinel. Offered in a ra...
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 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 Genuine Sodalite Cabochon
Otto FreiRound genuine sodalite cabochons offer a rich, deep royal blue color that makes them a compelling and more accessible alternative to lapis lazuli. ...
View full detailsCloseout-Round Swarovski Gemstonesâ„¢ Genuine Faceted 1mm Bright Blue & Pink Sapphires | OttoFrei.com
SwarovskiSold by the piece, these Round Swarovski Gemstonesâ„¢ Genuine Faceted Sapphires offer exceptional quality in a 1mm diameter. Available in Bright Blue...
View full detailsEmerald Cut Faceted Imitation Blue Zircon
Otto FreiThis lab-created blue Spinel displays the ocean blue shade of zircon without its characteristic brittleness. Crafted as a zircon simulant, these em...
View full detailsEmerald Cut Imitation Aquamarine
Otto FreiSimulating the light sky blue of natural aquamarine, these emerald cut stones are composed of lab-created blue spinel. Available in a range of cali...
View full detailsPear Faceted Genuine Swiss Blue Topaz
Otto FreiSwiss 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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