I thought that these warranted a separate category on their own. I have two kinds:
1. High grade, super-flashy freeform faceted labradorite. The labradorescence on these is quite spectacular and is in the most desirable bright blue colour. The material itself is Madagcascan; pale, almost transparent with sparkling mica inclusions. These stones are polki cut - that is, they are cut with a double table. Any one of these would make a stunning centre-piece or focal.
2. Standard cabochons in lower grade material. Still fantastic stones, with superb flash, I bought these for their 'painterly' qualities - that is, the pattern of the flash on many of them is multi-coloured and rather like an impressionistic painting. This is more opaque material.