Art Deco 1930 Cocktail Ring In Platinum With 6.12 Cts Autralian Opal And Diamonds

An art deco ring with Australian opal.

Exceptionally beautiful ring, created during the iconic period of the art deco, back in the 1930. This colorful ring personify the deco period and has been crafted in a cushion shape in solid platinum with polished finish. The design show very strong deco patterns and is embellished with one multicolored opal gemstone. The opal has a very nice "pin fire" pattern with an unusually generous amount of blue/green/purple/red play of color.

All gemstones settings are decorated with millegrain patterns.

Australian Opal: Mount in the center in a bezel setting, with 1 cushion cabochon cut (14.06 x 11.70 x 4.5 mm) of a natural Australian opal of 4.36 carats, with no crazing, scratching or pitting to opal.

Diamonds: Mounted around and the sides in a French flush settings, with 26 European round brilliant cut diamonds, 1.65 carats, white colorless F color, VS-2 clarity.

Weight: 8.95 Grams, (5.74 Dwt).

Size: 6.5 sizeable.

Measurements: 20 mm by 22 mm (0.79 x 0.87 Inches).

Hallmarks: Stamped with the platinum mark, "PLAT".

Note: The opal, is gem quality, translucent with a perfect cushion cut and a phenomenal play of multi colors. These kind of Opals have a reputation for being one of the most expensive opals in the world.

Note: Precious Opal like this are rare, opalescence refers to the optical phenomena displayed by the mineraloid gemstone opal (hydrated silicon dioxide). However, there are three notable types of opal (precious, common, and fire), each with different optical effects, so the intended meaning varies depending on context. The optical effects seen in various types of opal are a result of refraction (precious and fire) or reflection (common) due to the layering, spacing, and size of the myriad microscopic silicon dioxide spheres and included water (or air) in its physical structure. When the size and spacing of the silica spheres are relatively small, refracted blue-green colors are prevalent; when relatively larger, refracted yellow-orange-red colors are seen; and when larger yet, reflection yields a milky-hazy sheen. 

Note: Millegrain is a jewelry technique which refers to the textural effect of a close-set line of metal beads that are typically used as a border on the edges or bezels of jewelry.

Collateral: It is accompanied by a presentation jewelry box.

Collateral: This ring is accompanied by a certificate prepared by the AGL laboratories number 8091647, stating is a natural multicolor Australian opal 

Collateral: This ring is accompanied by an appraisal certificate stating all the characteristics of the gemstones and their replacement value.

Condition: The overall condition of this ring is excellent. Beside the little normal wear, there is no damage to the platinum. The opal and the diamonds are secured in the setting. This piece has been carefully inspected to guarantee the condition and authenticity.

INVENTORY REF: R030723EENM/.2581           AGL-809164/TTE