Pierres précieuses

Swiss Blue Topaz is the trade name used to describe a vivid medium to medium-dark blue hue of topaz. This December birthstone is a compelling alter...

Known 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...

Hematite is composed of iron oxide, exhibiting a shiny, metallic luster. A traditional favorite in men's jewelry, hematite has the highest density ...

Genuine hematite cabochon in a classic oval rose cut, ideal for rings, pendants, cufflinks, and men's jewelry. Its black opaque body and bright met...

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

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...

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

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...

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

Black onyx, also known as black agate, is dyed black chalcedony — one of the most enduring and versatile gem materials in the jeweler's palette. Ch...

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

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

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

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

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

Bumble Bee Jasper comes from the volcanic areas of Indonesia and Australia. It displays a wonderful array of yellows, blacks, greys, and oranges. E...

Azurite Malachite is rarely available in calibrated sizes due to the natural rarity of the stone and its striking combination of blue and green col...

Azurite malachite is rarely found in calibrated sizes due to the natural rarity of the stone and its striking combination of blue and green hues. T...

Morganite is a captivating variety of the Beryl family — the same mineral group that includes Emerald and Aquamarine. Its color ranges from soft ro...

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

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

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...

Displaying a rich, vivid emerald green, this nano crystal gemstone is ideal for the birthstone of May. With a Mohs hardness of 7 to 7½ and high res...

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

Known 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...

Sky Blue Topaz is the trade name used to describe a bright light blue hue of topaz. This genuine faceted marquise stone is an excellent alternative...

Tanzanite is found in only one location in the entire world — Tanzania, in Eastern Africa. Discovered in 1962, tanzanite is a relative newcomer on ...

Mexican Fire Opal is prized for its blazing reddish-orange color — a characteristic that sets it apart from most other opals, which typically displ...

Oregon 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...

Oregon Sunstone is a natural, all-American gem, sourced exclusively from mines in the state of Oregon and receiving no treatment of any kind. A mem...

Iolite takes its name from the Greek word for violet, and this genuine faceted stone delivers a vivid violet-blue color that makes it a compelling ...

Square rose-cut marcasite offers the timeless appeal of a polished, metallic, mirror-like appearance that has made this stone a staple in antique a...

Displaying the characteristic lime-green color of natural peridot, these pear-shaped faceted simulants are composed of a lab-created yellow-green s...

Simulating the delicate light sky blue of natural aquamarine, these pear faceted imitation stones are composed of lab-created blue spinel. Their ca...

This pear faceted imitation amethyst is composed of a lab-created spinel doublet exhibiting a light to medium purple color. The doublet constructio...

Displaying the rich golden yellow of citrine, this simulant is composed of lab-created synthetic yellow corundum. With a hardness of 9 on the Mohs ...