GIA Acquires John Koivula’s 2,665-Piece Collection of Gem and Mineral Inclusions (새 탭에서 열립니다)
Select pieces from the 60-year collection will debut at the AGTA Tucson GemFair and Tucson Gem and Mineral Show in February 2027.
INSTORE에서 기사 전문 읽기 (새 탭에서 열립니다)