ROUGH AQUAMARINEThis is a6.16 carat roughAquamarine or BlueBeryl specimen.This is a gem cuttable quality stone.Thisberyl is 100% natural and has not been worked on in any way.Measurements:15mm x 12mm x 6.8mmCheck out our other great values by visiting us at www.stores.eCRATER.com/roughdiamondworld or click on our store link.On Aug-31-09 at 09:17:13 PDT, seller added the following information:Every buyer gets a MyStoreRewards invitation for cash back