Intricate swirls of 18ct white gold are encrusted with stunning diamonds totaling 3 carats this detail surrounds an amazing 226 carats worth of powerful blue topaz complete with a three piece chain this impressive piece evokes feelings of the depths of the ocean with its vibrant blue colour and swirling designs round diamond 300ct g vs topaz 22634ct conflict free diamonds free insurance valuation uk hallmarked nickel free