16 vintage rings with K18GF markings, indicating gold-filled. Gold-filled means a thick gold plating, but the actual thickness is unknown. The blue ring has a slightly warped stone, as shown in the image. + 3 colors of Goldstone loose stones Search Keywords: Thousand-thread filigree, agate, menow, pearl, elinaite Synthetic spinel, sparkling Crystal, precious stones, ornamental stones, viewing stones, gemstones, accessories, parts Mineral show