Surprise your favorite december-born birthday girl by giving her your heart. Stunning in cool 10k white gold, this pendant features an exquisite heart-shaped 7. 0mm blue topaz that glistens brightly. A single shimmering lab-created white sapphire adds just a hint of extra sparkle. Polished to a brilliant shine, style suspends from an 18. 0-inch rope chain and secures with a spring-ring clasp.