Boucles d'Oreilles Clou Floral Trèfle Argent 925 Saphir Rond Serti ClosThese sterling silver stud earrings feature 8 round blue sapphires. These earrings come with a post and butterfly clip and are suitable for pierced ears only. sapphire is considered the most precious and valuable blue gemstones and it is commonly associated with royalty. Traditionally given as a gift for a 5th and 45th year wedding anniversary sapphire earrings make a stunning gift. These stylish stud earrings are also available in ruby and emerald.