Give a Gift with Meaning. BIRTHSTONE FOR FEBRUARY. 0.4 Inch Dark Amethyst Ball Pendant Necklace on 18 Inch Rolo Cable Chain with matching 0.31 inch stud earrings. Made Using Solid Sterling Silver 925 and Swarovski Crystals.For other Birthstones please type Decorum Jewellery into the search bar. Gorgeous Dark Purple color Sparkles when it catches the light Suitable for every day or evening wear An absolute classic Always a winner