27. Principes et pratique de la nbulisation Medicine Key By Charlotte Crystal Lotus Heart Padlock Necklace Gold. The 18k Gold Vermeil Crystal Lotus Heart Padlock Necklace represents the unbreakable bonds that unite us. This delicate token of protection is the perfect gift to your loved one, timeless in design. Available in 18k gold vermeil and sterling silver. Necklace length: 18 inches, with loops to shorten to 16 or 15 inches. Padlock pendant: 8 x 5. 5mm. Set with a cubic zirconia in a claw setting. Lobster clasp. Features iconic lotus motif. Set on signature fine chain.