[TRENDING: DeSantis to lift restaurant limits in Fla. | Here’s how to track your mail-in ballot | How can I tell difference between flu and COVID-19?]Cut from a rough diamond discovered in Ontario, Canada, in 2018, it achieved top rankings in each of the “four Cs” -- cut, color, clarity and carat weight.It has the highest grading for a white diamond, classified as “D color.”.