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Buying a Faceting Machine

Buying a faceting machine means making compromises between economy, looks, and technical features. Learn what questions to ask before you make…

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Gemstone Encyclopedia
Our Gemstone Encyclopedia has information on over 300 gemstones, from traditional and popular jewelry standards to collector’s stones that rarely appear for sale. Each entry has photos and detailed information about the gem’s properties. Entries for jewelry stones also have price guidelines and discussions of their most important value factors.
January Birthstone
Although many associate January's birthstone, garnet, with the color red, they can come in a variety of colors including red, yellow, orange, green and even blue.
February Birthstone
Thanks to its beauty and relative abundance, the February birthstone, amethyst, is used in all types of jewelry: from the mass market to the finest custom couture pieces.
July Birthstone
This vibrant red gemstone is the July birthstone and is closely associated with love, passion, and romance. While there are affordable options to be found, the largest and most beautifully colored rubies can be very expensive; the best rubies may be sold for the highest cost-per-carat costs of any colored gemstone.
August Birthstone
Peridot is the August birthstone. It is also sometimes called the “evening emerald” because of its unique capacity to sparkle under natural or artificial light. However, it should not be confused with emerald because peridot has its own distinct characteristics setting it apart from other gemstones.
September Birthstone
The September birthstone is sapphire. Sapphires are members of the gem species corundum. Depending on the exact chemistry of individual stones, sapphires may present a whole spectrum of colors with the exception of red. This is because red sapphires are put into their own category and called rubies.
October Birthstone
Pink tourmaline is the modern October birthstone, loved for its breathtaking beauty and awe-inspiring variations of the color pink.
November Birthstone
The most common birthstone for November is yellow topaz however citrine, another lovely yellow gemstone, has been rising in popularity as an alternative and is much easier to purchase.
December Birthstone
Blue zircon is known a modern December birthstones alongside blue topaz and tanzanite. The more traditional December birthstones are lapis lazuli and turquoise.