Claddagh Irish Pendant Sterling Silver 925

Wonderful, claddagh pendant, great condition! Fun for anytime of year, or as gift for St. Patrick’s Day (does not include a necklace, only the pendant) But you can add to a necklace, bracelet, etc Slight imperfection on top left of heart when viewing from the side. Seems to be a manufacturer’s error when laying the stone? Or idk just like a slightly dull edge or some silver tarnish. Hard to tell without a magnifying glass and not really noticeable when wearing but just fyi. Unsure of recommendation for necklace thickness that pendant would work with, but I provided a cross section of the hook/clasp/etc for reference, appears to be right at 1/8”