Vintage Sterling Vermeil Sleeping Beauty Turquoise, Stones and Enamel Ring

Vintage Silver 18ct Gold Sterling Vermeil Sleeping Beauty Ring with enamelled and set with Citrine, Ruby and Blue Sapphire,  All in excellent condition just a soft, aged patina. This piece has extensive Hallmarks, an unusual one by the Jeweller/Designer being GP beside with blue Sapphire inset beside at ring rear!, plus a very fine Hallmark which indicates 18ct Gold on 925 Silver, referring to the Vermeil gold quality on European Silver 925, being the same as Sterling Silver, (plus other mark(s). Dimensions approx.: Ring size R  or  8 ¾; Turquoise Cabochon 8mm square x 4mm high;  Band 4mmm wide at rear to 18mm wide( straight) across front; band thickness 1mm  all over including domed front, plus uplifts for Claws and settings.  France. Europe.