It's all about color and sparkle with this ready to use post featuring Swarovski SS34 flatback crystal. Siam echoes the color of Garnet, birthstone for January and is included in our Birthstone Mix. Posts are titanium for Hypoallergenic comfort. Clutches are sold separately. Embellish your next DIY earring project with this 12mm Bright Rhodium Earring from TierraCast. This earring is lead free and made right here in the USA! This bright rhodium plated pewter earring features a 7mm Siam Swarovski Flat Back mounted in the stepped bezel setting.