New vintage jade ring

New vintage jade ring Beautiful simple 1970s-1980s design embodying minimalist and art deco elements. Overview two bow cuts of jade (4x9x2 mm) in a simple square setting. Side view mount (12x10x8 mm): looks like an architectural a-line roof structure. Pentagonal “crown” with Y on one side. Simple arches with buttress on each side. Hollow underneath. Two “beams” help keep the cabochons in place. (Plus some glue, I think). Simple smooth shiny band (+2x1 mm). New vintage c. 1970s-1980s. NO HALLMARKS. Very shiny silver finish. Note: we have two more rings that look identical to this one. Except they have the hallmark STG and needed some polishing. I don’t know why this is so shiny and without a hallmark.