18K Rose Gold 5/8 Cttw Diamond and London Blue Topaz Gemstone Bezel-Set Cluster 18" Station Necklace (G-H Color, SI1-SI2 Clarity) - Adjustable up to 16" - 18"This exceptional 18k rose gold station necklace features a natural 7. 7mm round bezel set topaz in a vivid heat treated London blue hue that serves as an eye catching centerpiece. A cluster of round, bezel set diamonds encircles this crisply colored gemstone, adding their own sparkle in a total 5 8 cttw with an approximate G H Color and SI1 SI2 Clarity. Stationed along the chain, a 3x3mm round bezel set blue topaz winks its sparkle as a solo