The diameter of this purple-petaled beauty is 2 5/8" (6.7 cm). The rectangular facets of the petals and their curves reflect a lot of light and the sparkles contained within add primarily turquoise highlights. A delicious wine red appears along the petal edges when the light is refracted just so :-). The mesh chain is 16" (40.8 cm) long and has a 3" (7.6 cm) extender. Has not been worn. x-posted