Zydo rainbow sapphire stretch bracelet in yellow gold. Single-Row Stretch Bracelet In 18Kt Yellow Gold With Multi Color Sapphires And Diamonds. One Size. Special Sizes Available Upon Special Order. Spring Made Of Special Alloy Is The Internal Structure That Gives It The Stretch Characteristic. 3.41 Ct Sapphires, 0.55 Ct Semi-Precious Stones, 0.22 Ct White Diamonds F/Vs18K Yellow Gold