How many types of diamonds are there?

I believe that there are twelve types of diamonds. Thirteen counting synthetic diamonds. The types of diamonds are: white diamonds which are the best known, pink diamonds which are the world's rarest diamonds, champagne diamonds which are naturally colored, pink champagne diamonds which display a flash of light, yellow diamonds which can include many shades of yellow, blue diamonds which are extremely rare, green diamonds which are also rare, orange diamonds which represent creativity, purple diamonds which are a precious type of diamond, brown diamonds which are the most sought in the world, grey diamonds which compliment almost anything, stimulated diamonds which do not suffer from let of diversity or hardness, and as I already mentioned, synthetic diamonds which are manmade.