About the brand: Enchanting fine jewellery designed by a woman, for women. 14-karat yellow gold Faceted Round-cut Prong-set Diamond = approximately 0.10 ct. tw.; colour = G-H; clarity = SI2-I1 Gemstone(s): Opal = approximately 3.72 ct. tw. Pendant drops approximately .75in Approximately 18in long with 2in extender Lobster claw clasp closure It is customary to treat most gemstones to achieve enhanced colour and durability. Some of these treatments may not be permanent, and may require special care. Please note: In product titles ct. tw. refers to the total carat weight of all diamonds and/or gemstones combined. Colour: blue