C. 1930 Vintage Tiffany Jewelry 14kt Yellow Gold and Black Cord Watch with Simulated Rubies. Size 7.5

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.

FOLDOVER: A clasp that folds over a bar and snaps into place. It is secure and also easy to clasp on and off.

FOLDOVER: A clasp that folds over a bar and snaps into place. It is secure and also easy to clasp on and off.

SIMULATED RUBY: A simulated ruby is an artificial stone made to imitate real rubies. Sometimes known as "faux ruby," it does not actually hold any of the physical properties of ruby, as it could be made from acrylic, plastic, glass or CZ. Simulated ruby is very affordable and can create the same sultry look for less.