Green Chrysoprase, Shell and 1.45 ct. t.w. CZ Necklace in Sterling Silver. 18"

STERLING SILVER: Also known as "Standard Silver," sterling silver is silver alloyed with other metals to increase the hardness and durability. Generally, sterling is 92.5% silver and 7.5% other metals. Some sterling silver jewelry is plated with 14kt-18kt gold and referred to as "vermeil," or "gold over sterling."

CABLE: One of the most popular and classic of chain styles, created from interlocking oval links unvarying in size.

SPRINGRING CLASP: Invented in the early 1900s this diminutive device is highly effective. It's a hollow circular metal fastener with a spring opening. This keeps the clasp closed.

DOUBLE: A bale that has two loops to slide a chain through.

Chrysoprase: One of the rarer and more valuable varieties of chalcedony, chrysoprase owes its signature green hue to traces of nickel. It measures 6.5 to 7 on the Mohs hardness scale and has been used to decorate buildings and jewelry.

CABOCHON: A style of cutting gemstones to achieve a smooth, domed surface with an absence of facets.

CUBIC ZIRCONIA: once called the poor cousin to the diamond, CZs have since become a fashion statement in their own right. Perfect for travel and a little extra bling, CZ Jewelry is one of man's flawless creations.

BRILLIANT: A gemstone cut to enhance brilliance without sacrificing much carat weight. Typically has 58 facets.

SHELL: A treasured gift of the sea, shell has been used for ornamentation since recorded time. Shell makes a classic choice for cameo designs and is often carved in relief to display a ladylike motif, presented in a frame of precious metal.

PEAR: Similar to the outline of a pear fruit, this is a round shape that comes to a point on one side.

CARVED: When a gemstone is cut so that the outline or surface takes the form or likeness of a specific image or pattern.