Convex means curving out or extending outward.
Concave means curving in or hollowed inward.
So which one of these dangles have the crescents convex and which concave? I would say both. Depends on your perspective. But what is true is one dangle is convex and the other is concave.
A fun pseudo lariat with beaded bead balls using CzechMates Crescents. The lariat is in two parts and the rope may be used on its own. The rope and connector takes advantage of the lovely drape created by the Russian Spiral. The beaded dangles themselves are woven with different counts of embellished prismatic right angle weave
Convex Or Concave Tutorial Booklet