London blue topaz, Swiss blue topaz, rock crystal and hematite doublet, and rock crystal, mother-of-pearl, and black onyx triplet paint myriad dark blue shades in this delicate necklace. The gems are set in 18K gold and cut by hand with large facets created exclusively by IPPOLITA to make the most of their intense colors. Pair this piece, either long or doubled, with a blue dress.