This one-of-a-kind necklace by Karin Jacobson features a beautiful pear-shaped opal. For an added sparkle, there is a round brilliant cut diamond (0.025ct) accent just above the 3.78ct Coober Pedy Opal. Made of 18k and 22k yellow gold with a sterling silver back, the pendant measures 0.87" tall including the bail and 0.37" at the widest. It comes with an adjustable oxidized sterling silver chain that can be worn at both 16" and 18". Handcrafted in US.