Sentences with phrase «crystal synthetic diamonds»
Not exact matches
And although scientists have been able to manufacture synthetic diamonds since 1955, current techniques create a diamond comprised of many small crystals.
https://www.scientificamerican.com/
By exposing basic chemicals to extremely high temperatures scientists were able to create the Synthetic Spinel, Corundum and Cubic Zirconia crystals to perfectly mimic the priceless gems — including the Black Prince Ruby; Stuart Sapphire; and the Cullinan II (the fourth largest polished diamond in the world).