14K WHITE GOLD & DIAMOND HIDDEN HALO SEMI MOUNT ENGAGEMENT RING . CONTAINS 18 ROUND DIAMONDS EQUAL 0.25CT TOTAL DIAMOND WEIGHT . 4 PRONG - BEAD SETTING STYLE . RING IS MADE FOR A MARQUISE SHAPE CENTER STONE ABOUT : 16 X 8.5 X 5.5 MM . CENTER STONE SETTING IS A 6 PRONG SETTING - HEAD . ESTIMATED 14KW GOLD WEIGHT 4.7 GRAMS . RING SIZE 6 . SHANK - RING ONLY MEASUREMENTS ABOUT : WIDTH 2 MM , THICKNESS - DEPTH 1.5 MM .