In this case the answer is, no, they are not. Swarovski crystals are non-precious lead glass meaning that the intrinsic value of the material is not very high. They do have a valuable brand name, however, which causes them to have higher prices compared to other crystal suppliers.
Moreover, are Swarovski earrings diamonds?
Swarovski Crystal is commonly referred to as Simulated Diamond or Imitation Diamond because its rich beautiful details so closely resemble genuine Diamonds.
Then, what is so special about Swarovski crystals?
SWAROVSKI IS MORE EXPENSIVE THAN GLASS
As compared to other glass jewelry, Swarovski jewelry is made of extremely high-quality crystal glass. The high-quality crystals come from the very uniform structure which offers the Swarovski crystals amazing clarity.