Magnifier Loupe Hearts and Arrows. For checking ideal cuts of diamond by revealing symmetrical pattern of hearts and the table side pattern of arrows.The finest cut round brilliant diamonds- with their perfect symmetry- display a unique optical symmetry pattern only when viewed through our special scope. Table up- you will see 8 Arrows and table down you will see 8 Hearts. Use as a a buying tool when sorting through parcels and use as a sales tool to show customers the value of their purchase. May be used on loose or mounted diamonds.