Antique J.E. Caldwell 18kt Gold Opal Diamond Ring

J.E. Caldwell Art Deco Opal & Diamond Ring

A signed Art Deco masterpiece by J.E. Caldwell, crafted in solid 18kt white gold and centered around a mesmerizing natural opal measuring approximately 19.5mm × 16.5mm. The opal exhibits vivid green and blue play-of-color under direct light, a signature hallmark of the exceptional gemstone quality Caldwell selected for his high jewelry creations.

Flanking the opal are geometric stepped shoulders set with natural round, emerald-cut, and old European-cut diamonds, arranged in a symmetrical Art Deco pattern that balances brilliance with architectural precision. The combination of cut styles reflects Caldwell's mid-1920s design philosophy-melding geometry, light, and proportion for maximum visual harmony.

Details-

Jewelry Type: Ring

Designer / Maker: J.E. Caldwell & Co.

Material: Solid 18K White Gold

Center Stone: Natural Opal (oval cabochon)

Center Stone Dimensions: 19.5mm × 16.5mm

Side Stones: Natural Round, Emerald-Cut, and Old European-Cut Diamonds

Weight: 10.4 grams

Ring Size: 6.75 (resizable)

Period: Art Deco, circa 1925-1935

Condition Report: Excellent vintage condition; opal surface intact with bright play-of-color. Diamonds remain secure and full of life. Hand-applied milgrain and stepped detailing remain crisp with minimal surface wear consistent with age.

Hallmarks: "JEC" (J.E. Caldwell)

Market Analysis
Signed J.E. Caldwell Art Deco rings in 18K white gold featuring large natural opals framed by mixed-cut diamonds are rare examples of American Deco craftsmanship. Pieces of similar size and signature routinely trade between $20,000 and $30,000, depending on gemstone quality, preservation, and provenance. The combination of an oversized 19.5×16.5mm opal with old European and emerald-cut diamonds reflects Caldwell's most sophisticated design period, placing this ring firmly within the collectible tier of 1920s high jewelry.

Reminder
Placing a bid constitutes a binding purchase agreement. Cancellations or non-payment will result in fees, account restrictions, or permanent removal from future auctions. Payment must be completed by verified wire transfer or another approved immediate method. Items remain on hold 7-10 business days pending full clearance. Bid with integrity-failure to perform will not be tolerated.

Pre-Bid Viewing Support
Text 586-482-4022 during the pre-bidding session only to request videos, alternate views, or additional close-ups. This service is unavailable during live bidding.

Authenticity Guarantee
All items offered by Hannosh's have been tested, authenticated, and guaranteed to be exactly as described and photographed. Each piece is professionally vetted by Hannosh's team of jewelers, gemologists, and watch experts before listing.