5061 Corundum, Luc Yen, Yen Bai Province, Vietnam September 29, 2019 Steve Asia Vietnam Blue Sapphires
Montana North and Central Americas United States 3493 Baddeleyite, Corundum, Biotite, Microcline, Bear Trap Deposit, Bozeman, Gallatin Co., Montana, USA October 3, 2019
Africa Madagascar 5056 Corundum, Zazafotsy Quarry, Ihosy District, Fianarantsoa Province, Madagascar September 29, 2019
