18K Tri-Color Gold Three-Band Rolling 'Trinity' Style Interlocking Ring
Ring (Rolling/Interlocking Wedding or Fashion Band) · Tri-Color Gold: Yellow Gold (warm classic tone), White Gold (likely rhodium-plated or high-palladium), and Rose Gold (copper-rich pink tone).
Purity: 18K (750 fineness); Contains 75.0% pure gold alloyed with silver, copper, and palladium/nickel. The distinct colors indicate high-quality 18K metallurgy.

Type
Ring (Rolling/Interlocking Wedding or Fashion Band)
Purity
18K (750 fineness); Contains 75.0% pure gold alloyed with silver, copper, and palladium/nickel. The distinct colors indicate high-quality 18K metallurgy.
Gold Type
Tri-Color Gold: Yellow Gold (warm classic tone), White Gold (likely rhodium-plated or high-palladium), and Rose Gold (copper-rich pink tone).
Weight
Estimated 4.5 to 7.0 grams depending on ring size; 0.14 - 0.22 troy ounces. Solid construction anticipated for rolling functionality.
Description
An elegant tri-color gold rolling ring featuring three interconnected bands that glide over one another. This design, pioneered by Cartier, symbolizes love, fidelity, and friendship. The seamless harmony of yellow, white, and rose gold makes it a versatile masterpiece of jewelry engineering.
Key Features
Triple interlocking loop mechanism; unique movement (it 'rolls' onto the finger); tri-color alloy aesthetic; comfort-fit interior profiles.
Color & Finish
High polish mirror finish on all three bands. Distinct color contrast between the pink (rose), cool silver (white), and rich buttery yellow gold. Visible light surface scratches consistent with use.
Hallmarks & Stamps
Typically stamped '750' or '18K' on the interior of one band. May include French eagle head assay marks or maker's marks like 'Cartier' if it is a brand-name piece.
Dimensions Estimate
Each band is approximately 2.0mm to 3.0mm in width; total width on finger approx 6.0mm-8.0mm. Standard mid-size band (US size 5-8).
Gemstones & Inlays
None. This is a solid gold band design focusing on the interplay of metal colors and geometric movement.
Clasp & Closure
Not applicable; continuous circular band design. The 'closure' is the mechanical interlocking of the three loops.
Chain & Links
N/A; Bands feature a rounded 'court' or 'half-round' profile to facilitate the rolling motion against each other comfortably.
Craftsmanship Details
High precision is required for the sizing of the loops to ensure they do not bind or feel too loose. Each band must be perfectly matched in diameter and gauge.
Authentication Indicators
The crispness of the color separation and the smooth rolling action suggest solid gold rather than plating. Red flags would be 'brassing' or peeling color at the touchpoints.
Origin & Maker
Likely European (French or Italian) or North American. Could be a Cartier Trinity ring or a high-quality homage by a boutique jeweler.
Era & Period
Contemporary / Art Deco Era Influence. Originally designed by Louis Cartier in 1924, this specific piece appears to be a Mid-Century to Contemporary production.
Age Estimate
Circa 1980s - 2010s. The polish and depth of color suggest modern casting and finishing techniques rather than an antique hand-forged piece.
Cultural Significance
Represents the 'Trinity' of relationships; often gifted for anniversaries or milestones to represent the past, present, and future.
Condition Notes
Very Good. Minor surface micro-abrasions (patina) where the bands rub against each other, which is normal for rolling rings. No deep gouges or structural warping visible.
Value Estimate
Melt Value: Based on current spot (~$300-$450 USD). Retail/Secondary Value: $600 - $1,200 (unbranded) or $1,500+ if authenticated as Cartier.
Care & Maintenance
Clean with warm soapy water and a soft brush. Avoid ultrasonic cleaners if the white gold rhodium is thin. Store separately to prevent the bands from scratching other jewelry.
Similar Items
Cartier Trinity Ring (original), Russian Wedding Bands, Bvlgari B.Zero1 (for industrial aesthetics), or single-color interlocking puzzle rings.
Interesting Facts
The design was famously commissioned by Jean Cocteau in the 1920s. It is one of the most recognizable jewelry designs in history, intended to be worn as both a wedding band and a fashion statement.