Write your own fashion rules when you wear this smart lab-grown diamond duo necklace from pdpaola™ at zales. Crafted in 18k gold two lab-grown diamonds - the larger a 1/15 ct. Stone - shimmer side-by-side for a playful look. Captivating with 1/10 ct. T. W. Of lab-grown diamonds the design suspends centered along a 19. 5-inch forzatina cable chain that secures with a spring-ring clasp. Additional closure rings at 15. 5 and 17. 5 inches.