It's the perfect way to say "I love you to the moon and back." Crescent Moon Charm Necklace With Blue Sapphire Star In Sterling Silver White Gold, Moon Sapphire Pendant Necklace, Birthstone Moon Star Necklace ◆ Product Specifications ※18K white gold ※3mm round cut lab sapphire & 1.5-2mm moissanite or diamond ※ Spring clasp ※Setting: Prong ※Adjustable 18" (45cm) length, 20" (50cm),22" (55cm) ※Made in the USA the chain length is include the extender chain length,if needed customized chain length,