These are really nice , well made and large hole is nice for a variety of cording , well done drill holes as well , I've had experience with Guatemalan jadeites of all manner for 20 years now , I noticed under magnification some of these are snowflake blue and some have imperial veining . That's really great . It's nice to find a source for this stuff that more affordable then some of these other dealers out there with their random over prices beads in the US . These are a great deal and very good quality .