What is known about one of the most expensive blue diamonds in auction history
4:17
How did an ordinary girl from an unremarkable family become one of the 500 richest people?
2:10
Oppenheimer blue diamond: one of the rare diamonds
1:07
Viewing a Pear Diamond Engagement Ring
10:45
Everything You Need to Know About Cornflower Blue Sapphires
3:46
Famous jewelry: the Marjorie Post collection
3:30
Tanzanite gemstone
2:44
expo Cartier et collection Coloratura, Cartier - Paris juillet 2018
1:03