5056 Corundum, Zazafotsy Quarry, Ihosy District, Fianarantsoa Province, Madagascar September 29, 2019 Steve Africa Madagascar Ruby. Kerry Banks Collection
Argyll and Bute Scotland United Kingdom 3596 Sapphire, Kilfinichen Bay, Loch Scridain, Isle of Mull, Argyll and Bute, Scotland November 30, 2018
Montana North and Central Americas United States 10020 Corundum, Bozeman Corundum Mine, Gallatin Gateway, Montana November 16, 2018
