Queen Mary’s Diamond Riviere and La Peregrina Pearl
It has an estimated price of $1,828,224. This was owned by England’s first female ruler Queen Mary. It is considered to be one of the world’s most exclusive jewels that include a Diamond Riviere. It was crafted from 34 old cut authentic diamonds set in gold and silver and given as a gift by the queen to her granddaughter Princess Margaret.
The Laurence Graff Ring
English jeweler Laurence Graff bought this ring for $2.6 million during a Christie’s Auction. It became one of a kind due to the maroon central color of the diamond and even rarer due to the diamond’s octagonal shape.