What is a Cape Diamond?
Cape Diamonds is a term used mostly by jewelers and diamond dealers to refer to diamonds which are darker (yellower) than M color. The term Cape was originally used to refer to diamonds cut from rough that originated from Cape Town, South Africa.
Center stone: Cape Diamond, 5.90ct O-color
Center stone: Cape Diamond, 8.02ct QR-color, VS1 clarity
Diamonds that are at the top end of the yellow-color spectrum like N or O color are usually referred to as Silver Cape or Top Silver. This term may have originated because of the silvery look they take on when light reflects off them, while they are still loose.
But, regardless of where Cape diamonds are sold or what they are called, believe it or not, they still represent the majority of the diamonds that are mined in the world.