By Blesk Flatback Gems come in a vast range of shapes and colours, plus we are always on the look out for new and different designs to excite our customers. By Blesk offers two types for Flatback Gems, Sew on and Glue on. We suggest using Gem Tac for your next project. If you cannot find a Gem that you are after please get in contact with us. We absolutely love helping out our clients with their creative project.