The ` ` ' ' Black Diamond '' is estimated to be worth $ 15 million . Black diamond in the home button was appraised at $ 14.5 million . Joe then told Hughes about the black diamond that had been in his family for generations . Lavish UK craftsman Stuart Smith was hired by Chinese businessman . Rare , black diamond has been in the family for generations .
The ` ` ' ' Black Diamond '' is estimated to be worth $ 15 million . Black diamond in the home button was appraised at $ 14.5 million . Lavish UK craftsman Stuart Smith was hired by Chinese businessman . Rare , black diamond has been in the family for generations .