Rough Sapphire

Rough Sapphires are harder to get than the Rough Diamond but as not as hard as getting the Rough Ruby. They are randomly sent by a person who owns a Dino Bone Gallery Module to a person on the module owner's friendlist. 10 are needed to make the Jeweled Triceratops Masterpiece and 5 to make the seal. After that you won't find any use of them other than buying a few loops and stickers.