Swarovski uses PP and SS stone sizing as a very specific measurement for their high quality round stones. Without a Swarovski Stone Sizes Chart, it would be very difficult and confusing to estimate the size of Swarovski stones in millimeter and/or inches.
PP stands for “Pearl Plate” and SS stands for “Stone Size”. Discover why we have the PP and SS sizes for round stones.
The Swarovski Stone Sizes chart here is a very handy conversion guide, specifically for Swarovski crystals and stones. The information in the chart has been sourced from Swarovski™.