The topaz is accompanied by a $5 million gift from Whitney to endow the Coralyn W. Whitney Curator of Gems and Minerals. “We are indebted to Coralyn Wright Whitney for her generosity and her ...

A flawless blue topaz gemstone - the largest of its kind - will be displayed in the Museum's Minerals gallery from 19 October. The Ostro stone is the largest cut topaz to go on show at the Museum.

Any topaz you find is yours to keep. Some people even turn their finds into jewelry. Bar M Ranch has been in Hahn's family since 1923 and 2018 marks the sixth year they’ve allowed gemstone ...