Anello aperto contemporaneo con topazio blu e diamante in oro giallo da 9 ctA modern open ring exuding sophistication with a sleek square cut blue topaz and delicate diamond trilogy design on a 9ct yellow gold band. Curate your own ring stacks with these sticking gemstone jewels from Gemondo's contemporary collections. Gemstone Information Blue topaz boasts the striking shades of a summer skyline. This semi precious stone has become popular in glacial blue shades and is thought by some to bring eloquence and expression.