18k Yellow Gold 3.62ct Ethiopian Opal & 0.81ct Diamond Ring with Valuation

Design: Oval cluster with pierced sides measuring: 20.9 x 18.6mm, centre features an oval cut hydrophane opal secured in a 4-claw setting, surrounded by a total of 143x round brilliant and single cut diamonds of various sizes secured in grain settings in curved triangular shapes. Band is rounded and tapered with sweep-up split shoulders, each claw set with a total of 22x single cut diamonds.
Metal Type: 18ct yellow gold, Stamped 'G18K'
Measurement: face of the ring 20.9mm x 18.6mm
Hydrophane Opal:
3.62 cts, 1 pc, oval cabochon, 12.8mm x 10.02mm x 6.17mm. Colour is white base with strong orange and green flash, semi translucent. Make is good. Ethiopian type.
Diamonds:
0.81 cts, 187 pcs, single cut / modern round brilliant natural Diamonds, Colour F-H, Clarity VS2-I1, make is good/very good.
Total Weight: 6.25 grams
Quality/Standard: Very good
Valuation Document is provided, please refer to photos.
Retail Valuation: $5700