18ct White Gold Single Stone Diamond Enagagement Ring D IF 0.50 SHAPE Brilliant CARAT WEIGHT 0.5 COLOUR D CLARITY IF CERTIFICATE AGI CERTIFICATE NUMBER 938165 CERTIFICATE LINK http://www-1.agigems.com/secure/viewcertnli.php?id=938165 Please note that Royal Mail delivery charges apply. Rings can be resized if required.?