First of all, its hardness is close to that of diamond (diamond hardness is 10 ARTE crystal diamond hardness is 9. 1), so it can be used to cut diamonds with eight hearts and eight arrows. Secondly, the art family's cutting and inlay technology is very elegant (his designer is a descendant of the Barrango family who designed jewelry for three generations of the Spanish royal family). Then there is no problem that its hardness falls to the ground, which Swarow can't do, and their products are cleaned for free for life, and Deto doesn't have to worry about fading. Clarity and brightness cutting can reach the highest level of diamonds, which is very face-saving!