I can’t speak to whether they are in stock, but Fire Mountain shows
a large selection in their catalog. They have briolettes, faceted
rounds at 5mm, 6mm, 8mm, 10mm; faceted rondelles at 5mm and 8-10mm;
then they have bricks, diamonds, triangles, and hearts.
No connection, just a customer who has been very satisfied with the
black onyx I have gotten from them in the past.
Beth in SC