Vintage Great Falls Metal Works Opal & Onyx Inlay Sterling Silver Stud Earrings

Vintage Great Falls Metal Works opal and onyx sterling silver stud earrings. Acquired from a private estate collection, these large statement studs feature a mosaic style inlay of opal inlaid between black onyx. The opal is multicolor with vibrant blue and green tones. The modernist style mount is a large round disc shape. Pierced stud post with butterfly backs. Signed GFMW hallmark on back. 1.25” diameter. Excellent pre-owned condition.