Wide Silver Cuff Bracelet with Blue and Pink Apatite Stone

Vintage wide silver cuff bracelet with stamp work and appliqué design. It is set with a round stone that appears to be blue and pink apatite. I tested it and it tests in the correct range, but without a gemologist, I cannot be sure. The colors are stunning! The stone measures 1 1/8" in diameter. The interior of the cuff is 6 3/4" plus the opening of 1 1/4". For a larger wrist. Can be somewhat adjusted. Weight: 50.2 grams. I tested the silver and it is not sterling, but it acted like 800 silver. No hallmarks.