Metal: 925 Silver | Brand: Unbranded | Length (inches): 8 | Country/Region of Manufacture: China | Main Colour: Silver | Main Stone: Opal | Theme: Holiday. 925 Sterling Silver White Round Opal Chain Bangle Bracelet is an ideal gift for any woman. The chain is 8'' long (20.32cm) and the opal stone size 10mm. Free UK Delivery and Same Day Dispatch.