«gem»Shell cameo : Mazzacarving : dancing three muses graces«setting»prongs setting«brooch clasp»trombone clasp : pull-out cylindrical type cylinder 6.8 mm(L) x 4.8 mm(Ф) pole 0.9 mm(Ф)«measurement»54.5mm(L) x 39.0mm(W) x 9.5mm(H), pendant bail 8.8mm«material»K18 Yellow gold«guarantee»The responsible person who is qualified as G.I.A. G.G. issues a warranty.We will take care of after purchasing items.