C. 1990 Vintage .50 Carat Synthetic Emerald and .15 ct. t.w. Diamond Heart Ring in 14kt Yellow Gold. Size 6

14KT: Karat (abbreviated kt or K) is a unit that indicates the purity of gold in the metal. 14kt is 58.33% gold. In the United States, 14K 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.

SYNTHETIC EMERALD: A gemstone that is created in a laboratory to mimic the actual properties of a natural emerald. Commonly known as "created emerald," it features the same gallant green color and transparent radiance, but is significantly more affordable than an emerald found in nature.

HEART: A shape that takes the form of a heart symbol, with two curved sections at the top and a point at the bottom.

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.

SINGLE-CUT: A gemstone cutting technique that dates back to the 1300s. Still used today, the single-cut usually features 18 facets that go in one direction without crossing each other.

Color Grade I-J: Near-colorless

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