The ring was purchased for me by my husband when we were visiting Rio. It is an 18 karat gold ring set with 10 genuine Brazil gemstones of a total weight of 2.7 karats. It is size 5 1/2 to 6. The stones are described in the certificate of appraisal verbiage. Sometimes this style is referred to a rainbow river. The ring is accompanied with the original case and outside box. I have located the certificate of appraisal from H Stern.
An 18k Gold & Multi Gemset "Rainbow" Dress Ring, probably 1980's
channel-set with 10 scissor-cut graduated green tourmaline, citrine and amethyst, of various tones, stated to weigh 2.7cts, finger size 5 1/2-6, original case and outside box. I have located the certificate of appraisal from H Stern.
The stones were probably sourced from Bahia in Brazil