5.50 Carat Emerald-Cut Ametrine Solitaire 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.

SAFETY CHAIN: A chain that is attached to both sides of the opening for a necklace or bracelet. It provides an extra measure of security in case the main clasp fails.

AMETRINE: A rare and captivating bi-colored gemstone, ametrine combines the majestic purple of amethyst with the sunny glow of citrine. The contrasting colors give it a distinct appearance. Ametrines are typically cut in such a way that there is a sharp boundary between the two colors towards the center.

EMERALD: the birthstone of May, and from the beryl mineral family, the emerald has been a prized possession of royalty since ancient times and a good quality emerald can be as or even more expensive than a fine diamond of the same carat. Emeralds are considered the traditional gift for the 55th wedding anniversary.