Stunning 18-karat gold large Herkimer diamond with "baby" pendant on an 18 inch open oval link chain. This one-of-a-kind pendant is beautiful worn alone or with another necklace. The Herkimer diamond measures approximately 1 inch long, or 25x22x12mm. The pendant is shown here on our 18 inch 18-karat gold open long cable 2.9mm link chain.