Review on DerBlue 50 Piece Diamond Gemstones: Perfect for Lapidary, Beading, and Jewelry Making by Kristen Reid

Really enjoyed working with it! I carved the text into a block of limestone using a dremel at speed 6. Great. Also, I was able to drill nice big holes in some of the antique architectural glass blocks using various drill bits. Make sure you have a spray bottle filled with water to frequently spritz your work surface on the tops of the ridges. This is absolutely necessary when using diamond drill bits and milling cutters. Otherwise the drill will get too hot and the molten diamonds will break off. It was so much fun playing with a variety of shapes and creating different marks on the stone. I highly recommend this set!