Blue Topaz is the December stone and the 4th-anniversary gem. Oxidation resistance, corrosion resistance, no allergy. A great addition to your collection of topaz and gemstone jewelry. It can be purchased as gifts and jewelry sets for women, teenagers, and girls. Perfect for the sophisticated, fashionable lady in your life, whether it’s your mom, sister, daughter, aunt, grandmother, best friend – or even you! Do you have an important date or anniversary soon? Check it out in style! It will be a meaningful and loving gift idea for a birthday, Mother’s Day, Valentine’s Day, or any special occasion that requires a unique look.