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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Marquise Faceted Imitation Citrine, Synthetic Corundum (November)
Otto FreiDisplaying the rich golden yellow of citrine, these marquise faceted imitation citrine stones are composed of synthetic yellow corundum. With a har...
View full detailsMarquise Faceted Imitation Pink Tourmaline, Synthetic Corundum (October)
Otto FreiThis Pink Tourmaline simulant is crafted from lab-created synthetic pink corundum, offering a rich rose pink hue that closely mimics the appearance...
View full detailsMarquise Faceted Imitation Peridot, Synthetic Spinel Doublet (August)
Otto FreiDisplaying the characteristic lime-green color of natural peridot, these marquise faceted imitation stones are lab-created yellow-green spinel doub...
View full detailsMarquise Faceted Imitation Alexandrite, Synthetic Corundum (June)
Otto FreiThis Alexandrite Simulant is composed of lab-created synthetic purple corundum, exhibiting a grayish purple color reminiscent of natural alexandrit...
View full detailsMarquise Faceted Imitation Aquamarine, Synthetic Spinel (March)
Otto FreiSimulating the soft, light sky blue of natural aquamarine, these marquise faceted stones are composed of lab-created blue spinel. Offered in a rang...
View full detailsMarquise Faceted Imitation Amethyst, Synthetic Spinel Doublet (February)
Otto FreiThis marquise faceted imitation amethyst exhibits a light to medium purple color that mimics the rich hue of natural amethyst without its character...
View full detailsMarquise Faceted Imitation Red Garnet, Synthetic Corundum (January)
Otto FreiThis marquise faceted imitation red garnet simulant is crafted from lab-created corundum, displaying a deep, vivid red color that closely resembles...
View full detailsHeart Faceted Imitation Citrine, Synthetic Corundum (November)
Otto FreiDisplaying the rich golden yellow of citrine, this simulant is composed of lab-created synthetic yellow corundum. With a hardness of 9 on the Mohs ...
View full detailsHeart Faceted Imitation Emerald, Synthetic Spinel Doublet (May)
Otto FreiDisplaying a rich emerald green, this Synthetic Spinel doublet is an ideal emerald simulant and a popular choice for May birthstone jewelry. Each s...
View full detailsHeart Faceted Imitation Amethyst, Synthetic Spinel Doublet (February)
Otto FreiThis heart-shaped faceted imitation amethyst exhibits a light to medium purple color that closely mimics the rich hue of natural amethyst without i...
View full detailsEmerald Cut Faceted Imitation Citrine, Synthetic Corundum (November)
Otto FreiDisplaying the rich golden yellow of citrine, these emerald cut faceted imitation citrine stones are composed of synthetic yellow corundum. With a ...
View full detailsEmerald Cut Faceted Imitation Amethyst, Synthetic Spinel Doublet (February)
Otto FreiThis emerald cut faceted imitation amethyst is composed of a lab-created synthetic spinel doublet, exhibiting a light to medium purple color. The d...
View full detailsEmerald Cut Faceted Imitation Red Garnet, Synthetic Corundum (January)
Otto FreiThis garnet simulant is crafted from lab-created synthetic red corundum, displaying a deep, vivid red color characteristic of natural garnet. With ...
View full detailsCushion Faceted Imitation Emerald, Synthetic Spinel Doublet (May)
Otto FreiDisplaying a rich emerald green, this synthetic spinel doublet is an ideal emerald simulant and a popular choice for May birthstone jewelry. Each s...
View full detailsSquare Faceted Imitation Citrine, Synthetic Corundum (November)
Otto FreiDisplaying the rich golden yellow of citrine, this simulant is composed of lab-created synthetic yellow corundum. With a hardness of 9 on the Mohs ...
View full detailsSquare Faceted Imitation Peridot, Synthetic Spinel Doublet (August)
Otto FreiDisplaying the characteristic lime-green of peridot, these square faceted imitation peridot stones offer an affordable simulant option for jewelry ...
View full detailsSquare Faceted Imitation Alexandrite, Synthetic Corundum (June)
Otto FreiSquare Faceted Imitation Alexandrite is an alexandrite simulant crafted from lab-created synthetic purple corundum, displaying a distinctive grayis...
View full detailsSquare Faceted Imitation Amethyst, Synthetic Spinel Doublet (February)
Otto FreiThis imitation amethyst is composed of a lab-created synthetic spinel doublet exhibiting a light to medium purple color. The doublet construction c...
View full detailsMarquise Faceted Genuine Pink Tourmaline
Otto FreiPink Tourmaline has been highly prized in the Chinese imperial court for centuries and is also known by the trade name Rubellite. Tourmaline is hig...
View full detailsOval Faceted Genuine Pink Tourmaline
Otto FreiPink Tourmaline has been highly prized in the Chinese imperial court for centuries and is also known by the trade name Rubellite. Tourmaline is hig...
View full detailsRound Faceted Genuine Pink Tourmaline
Otto FreiPink Tourmaline has been highly prized in the Chinese imperial court for centuries and is also known by the trade name Rubellite. Tourmaline is cel...
View full detailsPear 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 popular alternative to Aquamarine, offering more...
View full detailsMarquise Faceted Genuine Smoky Quartz
Otto FreiSmoky Quartz is a widely available and affordable gemstone with a rich history in fine jewelry. Popular during the Victorian era and often confused...
View full detailsPear Faceted Genuine Blue Sapphire
Otto FreiSapphire ranks among the most popular colored gemstones in the United States, prized for its extraordinary durability and rich, vivid color. These ...
View full detailsMarquise Faceted Genuine Blue Sapphire
Otto FreiSapphire is one of the most popular colored gemstones in the United States, prized for its extraordinary durability and suitability for everyday we...
View full detailsOval Faceted Genuine Blue Sapphire
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 detailsMarquise Faceted Genuine Ruby
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 ...
View full detailsPear Faceted Genuine Peridot
Otto FreiNamed by the Egyptians as the "gem of the sun," peridot is plentiful and generally inexpensive. Ranging from transparent yellowish green to greenis...
View full detailsMarquise Faceted Genuine Peridot
Otto FreiNamed by the Egyptians as the "gem of the sun," peridot is plentiful and generally accessible. Ranging from transparent yellowish green to greenish...
View full detailsMarquise Faceted Genuine Emerald
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 Faceted Genuine Emerald
Otto FreiEmerald is considered the world's finest green gemstone and has been highly prized and coveted for centuries, from Cleopatra to European royalty. A...
View full detailsPear Faceted Genuine Citrine
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 detailsMarquise Faceted Genuine Citrine
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 detailsPear Faceted Genuine Aquamarine
Otto FreiAquamarine 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 detailsMarquise Faceted Genuine Aquamarine
Otto FreiAquamarine 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 detailsOval 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. These oval face...
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