The diamonds on the dial are around 1mm in diameter and weigh around 0,005 carat per stone.
The diamonds feature a "simplified brilliant cut". It's called "simplified brilliant cut" because a round cut diamond (round brilliant) usually has at least 56 facets. Round cut diamonds with a "simplified brilliant cut" have 8 facets on the top and 8 facets on the lower part as well as a table, so a total of 17 facets. Due to their small size they are ideal to be put on a watch dial. Diamonds with a "simplified brilliant cut" in the size range up to a maximum of 0,02 carats achieve a higher brilliance than round brilliants. This is due to the fact that larger facets have an optimal effect in that size range.