A stellar look, this 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 trillion-cut pink tourmaline 6. 0 x 3. 0mm marquise-cut pink tourmaline lab-grown diamonds; f color/vs2 clarity 1/10 ct. T. W. Of lab-grown diamonds adjustable 18. 0-inch paper clip chain necklace; lobster claw clasp from the stellar star collection exclusive to zales