- Designed and Handmade by me -Sterling Silver 925 - nickel free - Rhodium Plating over the silver - a very rare type of platinum to prevent tarnishing - Natural Sky Blue Topaz 9mm x 6mm, 2.5mm, 4.5mm I made these gorgeous earrings with clear blue, natural blue topaz. These are a small to medium sized earring, perfect for all occasions. These will come in a pretty gift box. Blue Topaz is a silicate of aluminium and fluorine. A higher water content causes the stone to be yellow to brown, while a Hallmarked Silver Jewelry With Blue Topaz, Classic Light Blue Sterling Silver Jewelry, Silver Aquamarine Jewelry Set With Earrings, Silver Jewelry With Blue Topaz And Prong Setting, Silver Jewelry With Blue Topaz In Prong Setting, Silver Blue Topaz Jewelry With Prong Setting, Drop Topaz Jewelry For Anniversary, Drop Shaped Topaz Jewelry For Anniversary, Drop-shaped Topaz Jewelry For Anniversary