1)crystal resin can make out matt finish directly.Since it's anti-scratches,don't need to coat clear laquer outside,so the matt is very matt.

2)The base of crystal resin flowers/cameos can be made very smooth and flat itself,don't need to do polishing.

1)They have to coat laquer outside products,otherwise they will scratched easily,so not so matt.

2)They have to polish the base,so it's hard to control quality,the base always have scratches or not flat.