2-In-1 Mixed Gemstone Necklace and Eyeglass Chain in 18kt Gold Over Sterling. 30"

18KT: Karat (abbreviated kt or K) is a unit that indicates the purity of gold in the metal. 18kt is 75% gold. In Europe, 18K yellow gold is most favored and used in jewelry.

YELLOW GOLD: Gold is a precious metal with a natural yellow color. It is quite soft and often alloyed with other metals to increase its strength. The purity of the metal is indicated by a unit called a "karat," with 24kt having the highest percentage of natural gold.

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."

RUBBER: A resilient, elastic polymer material formed both naturally and synthetically. Rubber is cured into various forms, allowing it to maintain its shape while also having some flexibility.

LOBSTER CLASP: named after the pinching style of the hook, this clasp is often shaped like a lobster's claw. Use your finger to work the lever to open the clasp.

AMETHYST: A natural variety of quartz, amethyst ranges in color from deep purple to pale lavender, and even to warm greens. Amethyst has been used during meditation to provide a sense of spiritual balance. Amethyst is the birthstone of February.

RONDELLE: A round shape with two flat parallel sides. Often in the form of a faceted bead.

FACETED BEAD: A stone with a drilled hole and a faceted surface. Strung together to decorate bracelets, necklaces, and earrings.

CHALCEDONY: a family of minerals that is often milky gray or bluish in color. Chalcedony includes a number of stones including onyx (black), carnelian (waxy red), agate (wide ranging palette) and bloodstone (brownish red.)

APATITE: This gemstone is found in many colors, from shades of the sea and sky to vibrant greens and yellows. Apatite lends a distinctive glow to necklaces and earrings, especially when used in multi-gemstone jewelry settings.

GARNET: the birthstone of January. One glance at the deep red seeds nestled inside of a pomegranate explains why the word "garnet" comes from the Latin word "granatus," meaning "grain" or "seed." This name was given to the garnet because of its close resemblance to the succulent seed.

QUARTZ: From the icy shimmer of rock crystal quartz to the delicate pink of rose quartz to the moody hues of smoky quartz, this gemstone offers something for everyone. Quartz, found in endless colors and varieties, is a popular choice for bracelets, necklaces, rings and earrings.

CITRINE: A member of the quartz family, citrine symbolizes cheerfulness and prosperity. Its name is derived from the French word citron meaning lemon. This sunny stone comes in colors from lemon yellow to amber brown, with its coloring agent attributed to iron. Citrine is the birthstone for November.