14KW BL SAPH SATIN PLSHD BAND, GROOVED. POLISHED RAILS SATIN CNTR. BL SAPHS SET IN GROUPS, 1 2 3 4 ACROSS TOP. 10=0.08CT. 7.5X2.3MM, 5.77MM RAISED SATIN CNTR, 1.1MM POLISHED RAILS 0.5MM GROOVE. 7.4DWT SERIAL #281323