9ct 7mm Rolled Gold Bolt Ring
These 9ct rolled gold bolt rings measure approximately 7mm in diameter. Bolt rings are a popular jewellery finding and regularly used to fasten chain, pendents and bracelets. Rolled gold jewellery is also know as gold filled of gold bonded, and is created by mechanically bonding a layer of gold to a layer of base metal-usually brass. The outer gold layer must be at least 1/20 of the overall metal content by weight, and is therefore a much thicker and more durable alternative to gold plating. These 7mm rolled gold bolt rings are supplied with a open jump ring.