Sterling Silver Marcasite Chevron Ring Size 5 to 5-1/2

V shaped chevron ring has 13 stones with non missing. Pre-owned and bought from an estate sale. Not sure if this is all marcasite or not. There is no opening behind the stone under the band.  Some stones are pointed and others are flat top. They all sparkle with with the catch of any light. Marked 925 inside of band and the band looks to have been sized at one time. A buffing up at the jewelers will make this band look great again.