Unusual Diamond Ruby And Emerald Full Eternity Ring Auction Eternity 9ct Gold Ruby and Diamond Eternity Ring Diamonds from Antiques Atlas 18ct Gold Diamond & Ruby Half Eternity Ring Vintage Ruby and Diamond Eternity Ring Solid 9 Ct Yellow Gold Full. A 9 carat gold half hoop eternity ring. Set with five calibre cut rubies, from 1. 7 to 2mm, and between small 1mm white diamonds. Set as a cross over design, the under ring has a satin yellow gold finish and looks simply gorgeous when placed onto the finger! Spreads across the finger to 17. 5mm, width 5. 5mm, weight 2. 7grams. UK hallmarks, no date letter, probably 1990s. Size N, we can resize free of charge