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Three-Stone Moissanite Ring

Close-up of a three-stone moissanite ring with yellow metal band, focusing on the internal 'MOIS' hallmark. - view 1
1/3

Estimated value

$100 - $300

Rarity

Ordinary(3/10)

Category

Jewelry

Era

Post-1998

Authenticity

Very High(90%)
10

THREE-STONE MOISSANITE RING: IDENTIFICATION

The provided images display a classic three-stone ring featuring a yellow metal shank and white metal prongs. The most critical identifying diagnostic is the internal hallmark 'MOIS', accompanied by a copyright symbol and a crescent moon stamp. In jewelers' parlance, 'MOIS' is a standardized internal stamp utilized to identify the mounted stones as laboratory-grown moissanite, distinguishing them from natural diamonds. This material assessment is supported by the visual appearance of the stones in the second profile image; the central stone exhibits intense dispersion (rainbow flashes or 'fire') that visibly exceeds the typical optical return of a natural diamond. The visible sectors of the inner band do not present a standard metallic yield or purity hallmark (such as 14K, 750, or 925), indicating that laboratory testing is necessary to determine if the structural mount is solid gold, an alloyed fill, or a base metal plating.

Compare with other jewelry in the archive: 2026 Georgian Orthodox Commemorative Cross Pendant (1700th Anniversary), Edwardian Peridot & Diamond Garland Brooch/Pendant c.1905, Victorian / Edwardian Era Floral Lapel Pin with Chain and Pendant.

PERIOD & PROVENANCE

Natural moissanite (silicon carbide) was first identified in 1893 by French chemist Henri Moissan within a meteorite crater in Arizona. Because terrestrial, natural specimens are exceptionally rare and crystal sizes are predominantly microscopic, all usable moissanite deployed in the modern ...
Natural moissanite (silicon carbide) was first identified in 1893 by French chemist Henri Moissan within a meteorite crater in Arizona. Because terrestrial, natural specimens are exceptionally rare and crystal sizes are predominantly microscopic, all usable moissanite deployed in the modern commercial jewelry trade is laboratory-grown. Commercial production of synthetic moissanite graded for jewelry use was pioneered by the firm Charles & Colvard, with the first stones entering the retail market in 1998. It rapidly established a market share as a durable (measuring 9.25 on the Mohs scale of mineral hardness) and highly refractive diamond alternative.

SCARCITY

Ordinary40-55%
CommonLegendary

Standard antiques commonly found at estate sales and flea markets. Plentiful supply meets modest demand.

Rarity 3/10. Curiosa currently catalogues 29 jewelry items at rarity 3 or higher.

Typical Characteristics

  • Moderate production runs
  • Common at estate sales
  • Entry-level collectibles

Confidence Factors

  • The piece is explicitly stamped 'MOIS', accurately signaling the presence of synthetic stones.
  • The pronounced optical dispersion visible in the stones is consistent with the physical properties of silicon carbide (moissanite).
How does authenticity detection work?

GEMOLOGIST'S ASSESSMENT

Jewelry Historian & Gemologist-Informed Appraiser

Jewelry Specialist

Identification of the stones is highly supported by both the explicit 'MOIS' hallmark and the visual conformity of the optical dispersion; confidence is slightly restricted only by the inability to verify the underlying metal composition without physical assay testing.

KEY EVIDENCE

  • 1The internal hallmark reads 'MOIS', a standard industry denotation for synthetic moissanite.
  • 2The central stone throws intense dispersive color flashes (fire), characteristic of moissanite's higher refractive properties compared to diamond.
  • 3The classic three-stone mount geometry is frequently utilized for synthetic diamond alternatives.
  • 4No explicit metal purity hallmark (e.g., 14k, 585) is visible in the provided angles of the inner shank.

UNCERTAINTIES

  • •The absence of a legible precious metal purity stamp necessitates a chemical or electronic test to confirm if the mount holds inherent scrap value or is simply plated base metal.

WHAT WOULD IMPROVE CERTAINTY

  • →Examine the entire circumference of the inner band with a 10x jeweler's loupe to locate any obscured metal yield hallmarks.
  • →Subject the stones to a dual thermal/electrical conductivity tester at a local jeweler to verify the silicon carbide composition.
  • →Perform a standard acid test on the metal shank if no confirming hallmarks are discovered.

CONDITION & GRADE

Very Good

Grading breakdown

Structural integrity is maintained with uniform wear to the band; stones remain securely set without visible impact damage.

Condition

The lower shank exhibits moderate multi-directional contact scratches. The prong assemblies holding the three stones appear structurally intact with no obvious torque or lifting visible at this magnification. The stones present no apparent cleavage or surface chips.

GEMSTONE & METAL VALUE

$100 - $300

Updated: Jun 23, 2026

Who buys this

Consumers seeking durable, highly refractive diamond alternatives for daily wear without the premium attached to natural or lab-grown diamonds.

What increases value

  • •Confirmation that the mount is solid 10k, 14k, or 18k gold rather than a plated alloy.
  • •The carat-equivalent size and colorless grading of the primary synthetic stones.

What lowers value

  • •The secondary resale market for synthetic diamond alternatives historically suffers severe depreciation compared to retail pricing.
  • •A failed acid test indicating base metal construction drastically reduces secondary market viability.

What makes top-tier examples

  • •Premium examples in this category feature heavy, verified platinum or 18k gold mounts housing high-clarity, colorless grade stones from recognized manufacturers like Charles & Colvard.

Grade & condition

Condition grade relies on the structural integrity of the prongs, absence of abrasion on the synthetic facet junctions, and volume of metal loss on the lower shank.

Rarity & demand

OrdinaryModerate demandModerate liquidity
Browse similar jewelry objects

For informational purposes only, not a formal appraisal.

YOUR INPUT VS. SCAN

How your provided context compares with Curiosa.com scanner findings.

What Aligned

  • The aesthetic 'minor wear' specified by the user maps directly to the visible contact abrasions traversing the lower shank of the band.

What Conflicted

  • While the user states the item is 'Original/Authentic' (which is true if meaning an authentic moissanite ring), the explicit 'MOIS' stamp completely rules out the stones being natural diamonds, which is a common misinterpretation in amateur assessments of this visual style.

FROM THE CABINET OF

HJ

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Wonderseeker•1 item

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