AI Appraisal Estimate

AI-generated estimates · not official valuations

From the user

What was submitted

Photo and notes provided by the user — not generated by AI

Submitted item photo
Submitted photo · June 28, 2026

User's notes

No additional notes provided.

AI analysis below

AI appraisal

AI analysis & estimate

AI-Generated · Verify before acting

Everything below is generated by AI for informational purposes only. AI can make mistakes — the AI may misidentify items or misattribute them (artist, maker, brand, designer, origin, era). This is not an official valuation and should not be used for insurance, sale, tax, estate, legal, or lending purposes — or any decision requiring a certified appraisal. It is not an authoritative claim about any person, brand, or rights holder — do not share or rely on it as a factual statement about a third party. Always consult qualified professionals before making financial decisions.

Read the full disclaimer

AI Identification

·Not independently authenticated·Verify before acting

Men's Vintage Black Star Sapphire and Diamond Signet Ring

Fine Jewelry / Men's Rings

AI Estimated Value

·Not an official valuation·Verify before acting

$450 - $700

As of June 28, 2026

AI Item Analysis

·AI can make mistakes·Verify before acting
A substantial men's signet-style ring crafted from a silver-toned metal, likely sterling silver or white gold. The center features a high-domed, oval cabochon-cut gemstone that appears to be a black star sapphire, exhibiting a dark, opaque body color with potential asterism. The stone is held in place by four robust corner prongs. Positioned directly above the primary stone is a small, round brilliant-cut accent diamond or white stone set into a triangular, recessed geometric motif. The shoulders of the ring are highly textured with a cross-hatched or 'nugget' style engraving that adds a rugged, industrial aesthetic. The overall construction is heavy and masculine, indicative of Mid-Century Modern or late 20th-century jewelry design (circa 1960s-1980s). Visible condition issues include significant fine scratching and scuffing across the metal surfaces (pitting and surface wear), which is common for a piece of this age worn daily. There is a visible patina or oxidation in the recessed areas of the textured metal, highlighting the geometric details. No maker's mark is visible from this angle, but the craftsmanship suggests a mass-produced yet durable jewelry piece characterized by bold lines and mixed textures.

AI Appraisal Report

·AI can make mistakes·Verify before acting
I have examined the digital representation of this men’s signet-grade ring. The piece features a prominent oval black star sapphire cabochon set in a textured, industrial-style mounting characteristic of the 1960s-1970s. The presence of a small round accent stone, likely a diamond or white zircon, adds minimal mass value but significant period character. The mounting exhibits a 'nugget' or cross-hatched texture widely popular in mid-to-late 20th-century men’s fashion. Condition-wise, the ring shows heavy signs of daily wear, including significant surface scratching and oxidation consistent with its vintage age. The market for vintage masculine jewelry remains steady, particularly for 'statement' pieces with organic or textured finishes. Comparable items in sterling silver or 10k gold typically realize mid-range prices at auction or secondary retail markets. The primary value driver here is the star sapphire, though its value assumes a natural, non-diffused stone. Crucially, as this appraisal is based on images alone, I cannot definitively confirm metal purity or stone authenticity. A physical inspection is required to determine if the metal is sterling silver, 10k white gold, or a base metal alloy using an acid or XRF test. Furthermore, a gemological examination using a loupe and directional light is necessary to confirm the sapphire’s asterism (the 'star' effect) and whether the stone is natural, synthetic, or surface-diffused. Final valuation would fluctuate significantly based on the metal hallmark and gemstone origin.

Get your items appraised

Instant estimates of your treasures with AI-powered appraisals

Browse More Appraisals