For June birthdays, Alexandrite is a perfect option and these everyday hoop earrings set with a total of 16 alexandrite coloured crystals are a wonderful gift that they can enjoy all year round. The simple, sterling silver hoops measure 15mm in diameter and are 3mm wide. Each of the beautiful cubic zirconia stones measures 2mm and is pave set around the outside. These earrings have a hinged opening for easy fitting and weigh 2.8 grams for the pair.