①B.C.JADE (British Columbia) Square Cufflinks Tie Pin ②Round Stone Cufflinks Tie Tack Although not stated, they are believed to be jade. There are no specific markings on the metal parts, so this is for those interested in jade, minerals, etc. Please understand that we cannot guarantee the stones will not come off and that the condition is not perfect before purchasing. We will ship anonymously via Yu-Packet Post.