I've seen some specimens from starruby.in/gem keepers, eightdimensiongems, jewelclimb plus, neweragems, and kat florence. But where else? Is any of the vendor I mention reliable?
I purchased a pair of trapiche emeralds from Star Ruby as well as a pair of star rubies. I was happy with all my purchases. Cecile Raley Designs on Etsy often has trapiche emeralds and is reputable.