Garnets are a group of closely related minerals with gemstones in almost every color.
The garnet group of related mineral species offers gems of every hue, including fiery red pyrope, vibrant orange spessartine, and rare intense-green varieties of grossular and andradite.
The essence of the color purple, amethyst is beautiful enough for crown jewels yet affordable enough for class rings.
This purple variety of the mineral quartz often forms large, six-sided crystals. Fine, velvety-colored gems come from African and South American mines. Amethyst is in demand for jewelry at all price points.
Named after seawater, aquamarine's fresh watery hue is a cool plunge into a refreshing pool.
This gem is a blue to slightly greenish-blue variety of the beryl mineral. Crystals are sometimes big enough to cut fashioned gems of more than 100 carats. Well-formed crystals also might make superb mineral specimens.
Diamonds are among nature's most precious and beautiful creations. The hardest gem of all, diamonds are made of just one element: carbon.
Valued for its colorless nature and purity, most diamonds are primeval — over a billion years old — and form deep within the earth.
Emerald is the bluish-green to green variety of beryl, a mineral species that includes aquamarine.
The most valued variety of beryl, emerald was once cherished by Spanish conquistadors, Inca kings, Moguls, and pharaohs. Today, fine gems come from Africa, South America, and Central Asia.
Perfect shining spheres. Lustrous baroque forms. Seductive strands, warm to the touch. Pearls are simply and purely organic.
Pearls can either be naturally produced in the bodies of marine and freshwater mollusks or cultured by people with great care. Lustrous, smooth, subtly-colored pearls are jewelry staples, especially as strands.
Ruby is the most valuable variety of the corundum mineral species, which also includes sapphire.
Traces of chromium give this red variety of the mineral corundum its rich color. Long valued by humans of many cultures, in ancient Sanskrit, ruby was called ratnaraj or "king of precious stones."
Found in lava, meteorites, and deep in the earth's mantle, yellow-green peridot is the extreme gem.
This yellow-green gem is a variety of the mineral olivine. It can be found as nodules in volcanic rock, occasionally as crystals lining veins in mountains of Myanmar and Pakistan, and occasionally inside meteorites.
The name "sapphire" can also apply to any corundum that's not ruby, another corundum variety.
Depending on their trace element content, sapphire varieties of the mineral corundum might be blue, yellow, green, orange, pink, purple, or even show a six-rayed star if cut as a cabochon.
Fireworks. Jellyfish. Galaxies. Lightning. Opal's shifting play of kaleidoscopic colors is unlike any other gem.
Opal's microscopic arrays of stacked silica spheres diffract light into a blaze of flashing colors. An opal's color range and pattern help determine its value.
Perhaps the most popular and frequently purchased yellow gemstone, Citrine's color comes from traces of iron.
Citrine is an attractive alternative for topaz as well as for yellow sapphire. It is also known as the gemstone that commemorates the thirteenth anniversary.
Symbolic of wisdom and longevity, blue topaz ranges in hues from deep London blue to a paler sky blue.
The ancient Greeks believed that topaz gave strength to whomever wore it. This birthstone is also believed to promote good health and a calm mind.
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