- January: garnet; February: amethyst; March: aquamarine; April: white topaz; May: emerald; June: moonstone; July: ruby; August: peridot; September: blue sapphire; October: opal; November: citrine; December: blue topaz; G-H SI diamond, total weight: 0.02-carats - Butterfly fastening for pierced ears - NET-A-PORTER is a certified member of the Responsible Jewellery Council