These are the type that are set into a stone setting. The back is not flat. - Brand: SWAROVSKI - Size: #4501 7x3mm #4527 8×6mm - Color: #4501 Crystal (White) 5 pieces per bag x 6 bags (Total 30 pieces) #4501 Siam (Red) 5 pieces per bag x 4 bags (Total 20 pieces) #4501 Montana (Navy) 5 pieces per bag x 2 bags (Total 10 pieces) #4527 Smoky Quartz (Brown) 2 pieces per bag x 4 bags (Total 8 pieces) Thank you for viewing. There are cuts in the hole at the top of the bag, but the part containing the product is unopened. I am retiring as an artist and will be selling off my inventory. I will carefully pack and ship the items. --------------- Product No. 12