Antique Edwardian Saphire Diamond Ruby 18K Gold Ring

This is beautiful antique Edwardian ring c.1910 set with a sapphire rose cut diamonds and rubies in 18K gold. The center sapphire is natural blue oval shape measures 9.5mm by 7.5mm approximately 2.25 carats. The 16 rose cut diamonds average I color SI-1lcarity total weight. There are 16 red rubies .04 carats each. Total gem weight for the ring 3.20 carats. Marked 18k, Diamonds and rubies set in silver, shank has etched and filigree design on the gallery. Ring size 6.5, Weight 7.3 grams, measures 22m high by 19mm wide.