TURQUOISE, ONYX AND DIAMOND RING
Centring a turquoise tablet with a surround of single-cut diamonds set on a fluted onyx, mounted in silver.
Turquoise: 2.40 carats
Onyx: 39.80 carats
Diamond (single-cut): 0.48 carats
Silver: 4.01 grams
Gross weight: 12.55 grams
Ring size: American 7, English: O