New vintage cocktail ring STG Sapphire

New vintage cocktail ring STG Sapphire Sterling silver minimalist modern band & setting x retro style = classic! Man made dark Sapphire. Dark dark blue. Oval: 5x6 mm, Facet: large centre top 8 sided Four prongs setting almost 4 mm tall. Shiny silver band: Side view: cathedral band with clean oval cutout. 2-3 mm wide band, 1-+1 mm thick Overview: nice solid thick band but the cutouts make it look not so heavy on a finger. Clean, simple lines. Fluted shape opening with the gem. Gallery: almost 4 mm tall, upto 3 mm wide Size: 5 New. Vintage c. 1970s. Sterling Silver. Visible Hallmark: “STG” plus a funny double “L” Or “L” inside a square. Man made sapphire.