ESTATE JEWELRY

"k" - karat - the amount of pure gold in the alloy. 10k = 41% pure, 14k = 58.5% pure, 18k = 75% pure.

"ct" - carat - the measurement used to describe weight in gemstones. equal to 1/5 of 1 gram.

"ctw" - carat total weight - the approximate total weight of multiple stones combined.

"dwt" - pennyweight - A unit of measurement used in jewelry. There are 20 pennyweights in 1 troy ounce.