A stellar look, this drop necklace features uniquely shaped, colorful gemstones reimagined in a modern silhouette —with a scattering of shimmering lab-grown diamonds for otherworldly sparkle. 10k yellow gold 6. 0 x 4. 0mm pear-shaped pink tourmaline 3. 5mm and 4. 0mm trillion-cut pink tourmalines lab-grown diamonds; f colo r/vs2 clarity 1/3 ct. T. W. Of lab-grown diamonds 17. 0- to 18. 0-inch adjustable bead chain; lobster claw clasp from the stellar star collection exclusive to zales