The Hope Diamond is a large, 45.52 carats (9.10 g), fancy deep-blue diamond, housed in the Smithsonian Natural History Museum in Washington, D.C. The Hope Diamond is blue to the naked eye because of trace amounts of boron within its crystal structure, … see full wiki
Diamonds that are color enhanced.
A lab-created gemstone made of silicon carbide.
A non-profit institute dedicated to research and education i …