18K White Gold Cabochon Garnet Ribbed Signet Ring
Ring (Signet / Cocktail) · White Gold with rhodium plating; likely alloyed with nickel or palladium.
Purity: 18K (750 fineness); contains 75% pure gold and 25% alloy metals.
Type
Ring (Signet / Cocktail)
Purity
18K (750 fineness); contains 75% pure gold and 25% alloy metals.
Gold Type
White Gold with rhodium plating; likely alloyed with nickel or palladium.
Weight
Estimated 12-15 grams based on the heavy, solid-looking ribbed shank and bezel setting.
Description
An impressive and masculine signet ring crafted in 18K white gold, featuring a deep red garnet cabochon centered within a substantial, polished bezel. The shank is characterized by a bold, vertically ribbed texture providing a luxurious tactile feel and architectural aesthetic.
Key Features
Heavy gauge bezel setting, vertical ribbed texture on the shoulders, and a high-dome cabochon gemstone.
Color & Finish
Cool bright white with a high-polish finish; exhibits minor surface micro-scratching on the bezel.
Hallmarks & Stamps
Visible interior stamp showing '750' and potentially a designer mark; appears consistent with European hallmarking standards.
Dimensions Estimate
Estimated US ring size 9 or 10; bezel face approximately 14mm x 12mm.
Gemstones & Inlays
Oval cabochon cut garnet, approximately 3.5 to 5.0 carats; deep brownish-red hue, bezel-set.
Clasp & Closure
Not applicable (solid band).
Chain & Links
D-shape profile band with vertical 'shrimp-style' or ribbed link-inspired texture.
Craftsmanship Details
High-quality cast construction with hand-finishing on the ribs; the bezel is securely burnished around the stone's girdle.
Authentication Indicators
The '750' stamp is clear and situated appropriately; the high-luster finish and lack of brassing suggest solid 18K white gold rather than a plated base metal.
Origin & Maker
Likely of Italian origin due to the ribbed 'tubogas-lite' styling and 750 stamp format.
Era & Period
Contemporary / Late 20th Century Revival (1980s-present) featuring Italian-inspired architectural design.
Age Estimate
Likely produced between 1995 and 2015 based on the combination of bold white gold and cabochon garnet.
Cultural Significance
Signet rings of this weight have historically projected status and authority, moving from functional sealing tools to modern luxury fashion statements.
Condition Notes
Very Good condition; minor scuffing on the gold surface and typical light wear consistent with occasional use.
Value Estimate
Estimated retail $1,800 - $2,400; Melt value approximately $650 - $850 depending on current gold spot prices.
Care & Maintenance
Avoid ultrasonic cleaners if the garnet has inclusions; clean with warm soapy water and a soft brush. Professional rhodium replating every 2-3 years will maintain the bright white finish.
Similar Items
Bulgari B.Zero1 rings or David Yurman signet rings, though those often feature signature cable or logo branding.
Interesting Facts
Cabochon-cut garnets are often referred to as 'carbuncles' in historical texts, once believed to have the power to illuminate the night.