Our silver bracelets are crafted from the highest-quality pure sterling silver, and all are inspected for a fineness mark to ensure quality. Our sterling silver charm bracelets and charms are created exclusively for Blue Nile. Our high-quality charms feature a custom lobster claw, designed to precisely fit either of our unique bracelets.

A carat measures fine gemstones and the weight of diamonds. Each has its own unique brilliance. Larger diamonds, such as those on diamond engagement rings, will usually carry a greater weight in carats than smaller stones, such as those found in diamond tennis bracelets. Look for diamond fine jewelry in which the diamond itself has a carat weight. Diamonds may be round brilliant, oval, tiffany, marquise, pear-shaped, heart-shaped, cushion cut , emerald cut, trilliant, radiant, or princess cut. Make sure the diamond is not cubic zirconium.

Nowadays such a distinction is no longer made by the trade. Rare or unusual gemstones, generally meant to include those gemstones which occur so infrequently in gem quality that they are scarcely known except to connoisseurs, include andalusite, cassiterite and bixbite. Some minerals can be very beautiful, but they may be too soft and will scratch easily (such as the mineral fluorite). Fluorite is extremely colorful and pretty but has a hardness of only 4 on the hardness scale and has four perfect cleavage directions, which makes it only an oddity as a cut gem.

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