14k gold earrings studs with tanzanites and diamonds

14k gold earrings studs with tanzanites and diamonds metal: 14k gold , no hallmark tested in lab weight: 1.9 gr size: 10x10mm set with tanzanites: blue color, round cut, clarity good - small inclusions, 0.45x2=0.90 ct total rubies: 12 pieces, round cut, red color, transparent clarity, 0.03x12= 0.36 ct total in both earrings Earrings goes with a plastics clasps.