Blue diamonds, such as the Hope Diamond ... Topaz is a fascinating gemstone that can occur in a range of colors, from the ...

Diamond’s allure as a gemstone and its use as a tool due to ... It also enables precision ‘doping’ with elements such as boron (in blue diamonds) for electrochemical applications, or ...

One side has valued it at US$10 million but the other side says it is worth US$27 million. Read more at straitstimes.com.