Judith Ripka "Marisol" Canary Yellow Crystal and .18 ct. t.w. Diamond Circle Pendant Necklace With Yellow Sapphire Accents in 18kt Gold. 24"

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.

ROLO: A chain comprised of interlocking circle-links.

TOGGLE: A two-piece clasp that fastens when a t-shaped or decorative bar is threaded through a circular loop. This stylized clasp type often serves as the centerpiece of a design.

Diamond: The hardest and most brilliant of all gemstones, a diamond can make the heart race with its pure and fiery spark. An ancient symbol of love, a diamond is the preferred gemstone for tokens of affection, such as rings, earrings, necklaces and bracelets. Diamond is the birthstone for April.

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

Color Grade G-H: Near-colorless

CLARITY SI1-SI2: Slightly Included. Inclusions are noticeable under 10x magnification.

CRYSTAL: Though traditionally the term "crystal" was given to glass with a 24% lead content, today it is used in a more general sense to describe transparent and highly refractive glass formed with silica, oxide, or other additives. Crystal is used in serveware, barware, home accents, and jewelry.

CHECKERBOARD: A technique that creates a contrast of dark and light when light hits the pattern of square or diamond-shaped facets.

SAPPHIRE: A favorite gemstone of ancient priests and royalty, the sapphire radiates sophistication and grace. This prized gem comes in every hue of blue, plus the more unexpected shades of pink, yellow, green and orange, and is September's birthstone.