Gold-Plated or Low-Purity Gilt Silver Adjustable Solitaire Ring
Jewelry - Ring · Unknown; likely mass-produced contemporary manufacturer with no visible signature maker's mark.
Pattern: Generic Modern Solitaire; open-shank adjustable design.

Type
Jewelry - Ring
Maker
Unknown; likely mass-produced contemporary manufacturer with no visible signature maker's mark.
Material
Likely silver-plated brass, copper, or low-purity 'German Silver' (nickel-copper alloy). The visible green oxidation (verdigris) and surface flaking strongly suggest a non-precious base metal or very poor quality silver plate.
Dimensions
Estimated diameter of 17-19mm (Standard US Ring Size 7-9) before breakage; weight likely between 2-4 grams including the synthetic stone.
Description
This is a broken costume jewelry ring featuring a gold-toned finish over a base metal. It features a single faceted colorless stone, likely cubic zirconia or glass. The ring shows significant wear, with the gold finish wearing away to reveal a copper-toned or oxidised green base metal underneath. The band is currently snapped at the back, indicating brittle metal or excessive stress.
Key Features
Solitaire setting, open-back adjustable shank, significant verdigris (green) corrosion on the interior band, absence of precious metal hallmarks.
Material & Composition
Likely silver-plated brass, copper, or low-purity 'German Silver' (nickel-copper alloy). The visible green oxidation (verdigris) and surface flaking strongly suggest a non-precious base metal or very poor quality silver plate.
Finish & Decoration
Gold-toned electroplate or gilt finish. The surface shows significant pitting, tarnishing, and loss of the top plate layer. Minimal decoration other than the solitaire stone setting.
Hallmarks & Stamps
No hallmarks are visible on the interior of the shank. The lack of purity marks (like 925) suggests the item is not solid sterling silver.
Construction Details
Cast construction with a simple prong or adhesive setting for the stone. The shank is thin and appears to have suffered a clean break or was designed as an open-back adjustable ring that has been over-extended.
Functional Features
Open shank intended for size adjustment; four-prong setting for a single faceted synthetic stone.
Handle & Grip Details
Finger shank with a flattened inner profile; currently damaged with a jagged break in the band.
Craftsmanship Details
Low-grade mass production; evidence of casting pits on the interior and uneven application of the plating layers.
Authentication Indicators
The presence of bright green oxidation is a 'red flag' for silver; pure sterling silver does not turn green unless it has a high copper content (low purity) or is a base metal plated in silver/gold. Lack of '925' or 'Sterling' marks further supports its status as costume jewelry.
Origin & Manufacturing
Likely mass-manufactured in a modern industrial workshop, possibly in East Asia, for the costume jewelry market.
Era & Period
Late 20th Century to Contemporary (Modern Era).
Age Estimate
Circa 1990-present day; the style and characteristic wear of the plating indicate a relatively modern mass-market piece.
Cultural Significance
Represents the 'fast fashion' or costume jewelry movement, prioritizing aesthetic appeal and affordability over material longevity and precious metal value.
Condition Notes
Poor/Damaged. The shank is broken (snapped); there is heavy tarnish and corrosion (verdigris) on the inner band; the gold plating is flaking and worn through in multiple areas.
Value Estimate
Minimal; primarily sentimental or decorative. As a broken base-metal piece with mass-produced synthetic stones, it has negligible resale or bullion value ($1-$5 range).
Care & Maintenance
Given the green corrosion, this item should be kept away from skin to avoid irritation. Cleaning with warm soapy water and a soft brush may remove surface grime, but the plating loss is permanent. Do not use silver dips on plated items.
Similar Pieces
Sterling silver adjustable rings (which would have a 925 stamp and even white-metal wear) or gold-filled solitaire rings (which have thicker gold layers and usually a 1/20 12k GF mark).
Interesting Facts
Adjustable rings became popular in mass-market jewelry to reduce the need for specific sizing inventory, but the 'gap' often creates a structural weak point where the metal eventually fatigues and snaps.