NEW Grandidierite and zircon sterling silver ring size 8

This is a brand new ring without original packaging or tag.  Genuine grandidierite graduated round cut gemstones prong set in authentic 925 sterling silver that’s plated with rhodium. White accent stones are zircon. Measures a size 8 and has a total weight of 5.14 grams. Total ctw is 3.65. Estimated retail value is $550. Reasonable offers considered