The brooch was bought at the same time as the earrings

The brooch and earrings were bought by Johanna from the jeweller Henry Capt in Geneva in Switzerland in September 1866.

The oval amethyst may be large but it is a variety of quartz, which is the world’s most common mineral. Consequently, it is neither particularly expensive nor unusual, which means that large pieces can be bought for low prices. A wide gold rim and twisted fronds also contribute to a spectacular appearance.