No price reductions. No discounts for bulk purchases. These are beautiful, vibrantly colored acrylic stones, Crystal AB (Aurora), purchased from overseas. (There may be occasional small scratches. We inspect and sort them, but please understand this before purchasing.) Items under 3000 yen will be shipped via regular mail. If you want to purchase a large quantity, please select from the following units and we will adjust the price. Please contact us first. 10mm 15 pieces for 300 yen 50 pieces for 500 yen 100 pieces for 800 yen 200 pieces for 1,500 yen 12mm 20 pieces for 350 yen 50 pieces for 600 yen 100 pieces for 1,100 yen 200 pieces for 1,900 yen