Choose the diamond identity before analysis. Natural and Laboratory-Grown stones are never mixed in Top Market Stones.
Natural uses the audited SYSTEM natural-market source contract; Laboratory-Grown uses explicit CVD/HPHT supplier-bank records. Row-level LGD markers always override a Natural source contract.
4Cs Colour, clarity and make
Finish & Fluorescence Appearance and durability context
Report & Evidence Laboratory and treatment information
Measurements Measured dimensions and core proportions
Angles are degrees. Percent fields are percentages. Estimated values remain visibly separate from entered or laboratory-reported values.
Pricing Context Benchmark, cost and current comparison
Markup and gross margin are different calculations. If both are entered, both scenarios are calculated; the margin-based scenario is used for the primary retail context.
Not analysed
Analysis Confidence
Run analysis
Confidence describes evidence coverage and model applicability. It is not a diamond quality score or a purchase recommendation.
Current Compare Price vs Robust Market MedianNot available
This position is calculated only when an explicit Current Compare Price and identity-matched comparable median are both available. Supplier/dealer cost is never substituted silently.
Run analysis to assess comparable-data sufficiency.