More Details Ippolita necklace from the 18K Rock Candy Collection. Polished 18-karat yellow gold. Mixed-set stones in Steel Blue assortment, including Hematite and Clear Quartz Doublet, Swiss Blue Topaz, London Blue Topaz, Clear Quartz over MOP over Black Onyx, London Blue Topaz and Labradorite Doublet. Approx. 1618"L. Lobster clasp. Imported.