The diamonds and the rubies (?) are without any doubt impressive, assuming it is all the real stuff. But in the end the result is poor. It looks like Camilla's breastplate collier.
It must be my personal taste for a more naturalistic style vs the more geometric style. Swirls, fleurons, leaves, ears-of-wheat, roses, all so much more appealing to me than just stones in a geometric pattern.
Taste is in the eye of the beholder, I realize that.