Mid-Century Diamond Solitaire Engagement Ring in Celluloid Presentation Box
Decorative Art / Jewelry • Retailer: Weisfield’s Jewelers (based on partial Seattle, Wash. logo). Manufactured likely by a commercial jewelry firm for the Pacific Northwest market.
Style & Movement
Mid-Century Modern / Late Art Deco influence (Transitionary style)
Medium & Technique
Likely 14k or 18k white gold or platinum band; center-set small round brilliant or single-cut diamond. The technique involves die-striking and milgrain detailing on the shoulders.
Creation Period
Circa 1940s – 1950s (Mid-Century / Post-War era)
Dimensions & Format
Ring size approximately 5-7 (standard female); Box dimensions approx. 2.5 x 2 inches.
Subject Description
A delicate, feminine engagement ring featuring a central diamond in a squared illusion setting, flanked by tapered shoulders with geometric openwork and milgrain edge details. It is housed in an original cream-colored celluloid/plastic presentation box with a purple velvet insert.
Condition & Value Assessment
Condition Assessment
Very Good. The ring appears intact with minor surface oxidation; the box shows age-appropriate yellowing and slight wear to the printed logo inside the lid.
Estimated Market Value
$350 - $600 USD (including the original box)
Auction Estimate
$200 - $400 USD
Provenance History
The box interior displays an inscription for a jeweler on Third Avenue, Seattle, Washington (Weisfield's). Suggests original purchase in the Seattle area mid-20th century.
Art Historical Significance
Represents the democratization of luxury in post-WWII America. The illusion setting was popular during this period to make smaller diamonds appear larger to the middle-class consumer.
Notable Features
Retention of the original vintage presentation box from a specific historic Seattle jeweler adds significantly to the item's charm and provenance value.
Condition Issues
Possible loosening of the stone prong; slight yellowing of the celluloid plastic due to UV exposure over decades; minor fraying of the velvet slot.
Conservation Recommendations
Professional cleaning with an ultrasonic bath for the ring; checking of prongs by a jeweler. Store the celluloid box away from direct sunlight and extreme heat to prevent further embrittlement.