Corvidae Antique has dated this piece to the Victorian era.

There is a foreign hallmark on the outside of the ring, as is common with continental European pieces, the ring tests as 18-carat gold.
In very good antique condition; under magnification it is possible to see a couple of tiny chips to the diamond edges and some flaws where the enamel may have been repaired toward the centre but these are not visible to the naked eye.
Size K (UK), approx 5.25 (US). The enamel measures 1cm across and the top of the ring sits approx 7mm above the finger.
Weight: 4.5g.
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Corvidae Antique has dated this piece to the Victorian era.
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