Stunning blue topaz gemstones combine with the beautiful sparkle of lab-created opals and white lab-created sapphires in this mesmerizing necklace. A gorgeous swiss blue topaz shines at the center, framed by deep-hued london blue topaz gemstones. Pear-shaped london blue topaz surround the outer edge, and the pendant catches the light with sparkling round-cut white lab-created sapphires and ethereal lab-created opals throughout. The sterling silver pendant hangs from an 18-inch cable chain and secures with a lobster clasp.