Tanzanite and Diamond Three-Stone Band in Yellow Gold

This is a contemporary fine jewelry ring featuring three oval-cut faceted tanzanite gemstones set in a horizontal row across the top of the band. The tanzanites exhibit a characteristic violet-blue hue with moderate saturation and are likely approximately 0.25 to 0.40 carats each. Separating the tanzanites are four small round brilliant-cut diamonds, arranged in two vertical pairs, which serve as shimmering accents to the primary stones. The ring is constructed of yellow gold, likely 10k or 14k based on common commercial manufacturing standards. The setting style incorporates a shared-prong or bridge-style mounting that secures the stones while allowing light to enter from the sides. Notable markings described include an 'A/C' stamp on the interior shank, which likely refers to a manufacturer's hallmark or a specific collection identifier. The overall condition appears excellent with no visible gemstone chips or significant abrasions on the metal surface. The craftsmanship is consistent with mass-market fine jewelry from the late 20th to early 21st century, showing good symmetry and secure stone placement. The combination of violet tanzanite and yellow gold suggests a late 1990s or 2000s style period.

I have virtually examined this contemporary three-stone tanzanite and diamond band. The piece features three oval-cut violet-blue tanzanites estimated at a combined weight of approximately 0.90 to 1.10 carats, accented by four small round brilliant-cut diamonds. The stones are set in a 14k or 10k yellow gold mounting (presumed based on style and 'A/C' maker's mark). The condition appears excellent with minimal wear to the prongs and no visible surface reaching inclusions or chips on the tanzanite tables. The current market for tanzanite remains stable, though value is heavily dictated by 'pleochroism' and color saturation; these stones show moderate saturation, typical of entry-to-mid-level commercial fine jewelry. The 'A/C' hallmark indicates a mass-market manufacturer, which places this in a competitive retail category rather than a boutique or designer niche. Market comparables for similar pre-owned gold bands typically realize $450 to $650 at retail, depending on the exact gold karatage. Limitations: This appraisal is based on photographic evidence and descriptions. I cannot definitively verify the gold purity without a Portsmouth or acid test, nor can I confirm if the tanzanites are natural or lab-created without spectroscopic analysis or high-magnification inspection for inclusions. Tanzanites are also frequently heat-treated to enhance color, which is industry-standard but requires professional equipment to document. A physical inspection by a GIA-certified gemologist and a metal assay would be required for a formal insurance replacement valuation.