[Love of Crystal] Yoursfs Heart of Ocean Sapphire Necklace and Earrings Set 18k White Gold Plated. Warm tips: 1.Please avoid contacting with the acid and alkali, corrosive substances. 2.Please avoid the collision, so as to avoid surface scratches. 3.Please avoid wearing it when sweating a lot, shower or sleep, etc. 4.Please wipe them with soft cloth when you clean your jewelries. .