Etsy seller AntiqueSparkle says this would make a great engagement ring, and though I can see that, I think it’s the rare bride to be today who would want this for that purpose.
However, it is a very lovely, delicate ring. The setting is quite fine/light, and given that it was made in 10k gold, I’m guessing it was the Edwardian version of affordable bling. I like 10 and 14k gold because it’s hardier than higher content gold, which may explain why this piece has survived since roughly 1910.
The seller notes, “This exquisite ring features two intensely aqua hued opals and two small rose cut diamonds set in an ornate 10K yellow gold Edwardian setting. The opals are genuine to the ring, so they show some wear when viewed under a loupe but this softness to the stones and warmth to the ring. Size 5. Can be re-sized within reason for an extra charge.”
It sells for USD$465.