2.23 Pear Ruby & Rose Diamond Necklace 18kThis 18 karat yellow gold necklace features pear cut rubies weighing 2. 23 carats and nine rose cut diamonds totaling . 92 carats accent the design, adding brilliant contrast to the deep red gemstones. The pear shaped stones are set in prong baskets that suspend from an 18 inch beaded chain. The rubies display the rich red color characteristic of fine quality, while the rose cut diamonds offer a softer, more subtle sparkle than traditional brilliant