Search the quality, finished-market, rough-form and verification considerations used for preliminary gemstone screening. Independent examination and transaction documents always control.
Prioritise vivid red to slightly purplish red, balanced tone, strong saturation and attractive transparency. Heat, filling and other treatments require clear independent disclosure.
Finished market
Fine vivid-red solitaires command the strongest premiums. Size, transparency, cutting, origin opinion and treatment status can move a stone far beyond ordinary commercial levels.
Commercial context
Commercial to exceptional · quotation after inspection
Hue, tone and saturation lead the review, followed by clarity, cut, size, treatment and origin opinion. Natural, heated, diffused and synthetic material must be clearly separated.
Finished market
Value rises with attractive blue saturation, transparency, size and a cut that avoids excessive darkness or windowing. Rare colour categories require separate assessment.
Commercial context
Broad market · colour, origin and treatment sensitive
Assess colour, transparency, fissure visibility, cut, carat weight and treatment. Natural inclusions are expected; oil, resin or other enhancement must be disclosed.
Finished market
Rich green colour with lively transparency and balanced cutting receives the strongest interest. Origin and the degree of clarity enhancement can materially affect value.
Commercial context
Commercial to rare · enhancement disclosure essential
Natural, laboratory-grown and treated material must be kept separate and clearly disclosed. A grading report supports identification and quality assessment but is not a price guarantee.
Finished market
Value is driven by carat weight, colour, clarity, cut performance, proportions and fluorescence, supported by an appropriate independent grading report.
Commercial context
Stone-specific · documented and independently graded
Confirm type, natural or composite construction, stability and any smoke, dye, impregnation or other treatment. A photograph cannot establish these factors.
Finished market
Brightness, spectral range, pattern, coverage and body tone create an unusually wide market. Exceptional material can exceed broad references.
Commercial context
Very broad · pattern, brightness and stability led
Judge depth and balance of blue-violet colour, transparency, pleochroism, cut and size. Heat treatment is common and should be addressed in transaction documents.
Finished market
Larger, strongly saturated, well-cut and eye-clean stones occupy the premium end of the market.
Colour is paramount, followed by clarity, cut and size. Rare trade descriptions should be supported by independent identification rather than visual assumption.
Finished market
The market spans accessible material to exceptional copper-bearing and vivid-colour stones that trade in distinct premium categories.
First identify jadeite versus nephrite and disclose polymer, dye or other treatment. Then assess colour, translucency, texture, structure and workmanship.
Finished market
Commercial material and fine untreated jadeite occupy very different markets; important pieces may be valued by object rather than per carat.
Prioritise vivid hue, saturation, transparency, attractive cutting and size. Origin and colour-cause opinions should be independently supported when commercially material.
Finished market
Fine vivid red, selected pink and cobalt-blue material can command strong premiums; ordinary colours occupy lower commercial bands.
Try a broader material, treatment or quality term.
Professional reference only. These screening criteria do not certify identity, treatment, origin, grade, ownership, availability or value. Independent gemological review and written transaction documents are required.
Qualified counterparties only
Define the mandate. Then open the transaction.
Share your target commodity, specification, volume or budget, destination and timing. Sensitive documents are requested only after preliminary qualification.
