he Black Prince's Ruby on the front of the Imperial State Crown, a name which is misleading because the stone is actually a red spinel weighing about 170 carats. The gem is a large bead - the lighter-colored dot on the front of the stone is actually a ruby plugging up the hole that goes through the stone. Photo © HMSO,
Monday, August 31, 2009
The Cullinan
he Black Prince's Ruby on the front of the Imperial State Crown, a name which is misleading because the stone is actually a red spinel weighing about 170 carats. The gem is a large bead - the lighter-colored dot on the front of the stone is actually a ruby plugging up the hole that goes through the stone. Photo © HMSO,
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