5090 Corundum, Luc Yen, Yen Bai Province, Vietnam

September 29, 2019 Steve Asia Vietnam

Ruby

Australasia Australia New South Wales

2727 Sapphire, Inverell, New South Wales

November 27, 2018

20031 Ruby, Luc Yen, Yen Bai Province, Vietnam

October 24, 2020

Montana North and Central Americas United States

10020 Corundum, Bozeman Corundum Mine, Gallatin Gateway, Montana

November 16, 2018

Asia Myanmar (Burma)

5394 Corundum, Mogok, Myanmar (Burma)

September 29, 2019

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