Talk about an amazing glow! This is a vintage 18ct buttery gold opal ring, with a rare and unique closed back, which we love. She is in amazing vintage condition and the natural opal (possibly a doublet) has flashes of blue, green and particulary orange. Her shank is fully hallmarked for 18ct British gold, sponsor mark N.B.S, assayed in Birmingham. Size N.5/US 7 and a weighty 6.97g.
 
*opal in amazing unmarked condition, a faint line noticeable within the left side of the stone at angle, we think because she is a doublet. But we have had this checked this is not a crack or fracture. See pics