A blue topaz and diamond eternity ringA 9 carat gold half hoop eternity ring. Set with five blue topaz gem stones, each 2. 8mm. Between each a small white diamond, (total diamond content estimated at 0. 06 carats) all set into white gold. The band is 9 carat yellow gold. Spreads around the finger to 19mm, width 3. 8mm, weight 2. 2grams. UK hallmarks. Size R, we can resize free of charge (limited to smallest size N).