Certification services
Each service produces its own numbered report. Services can be combined on a single submission and issued as one certificate.
Watches
Authentication
Reference, serial and caliber verification against factory records and known production ranges. Determination of authentic, authentic with non-original components, inconclusive, or not authentic.
Originality report
Component-by-component assessment: dial, hands, bezel, crystal, crown, case back, bracelet, clasp. Refinishing, over-polishing and replacement parts identified and listed.
Condition grading
Graded on the NYAA six-point scale with case, dial, movement and bracelet scored separately, plus timing results over five positions.
Insurance appraisal
Replacement value for a scheduled-property policy, based on current retail or secondary-market replacement, with the market level identified.
Estate & fair market
Fair market value for estate, gift, donation or division purposes, supported by dated comparable sales.
Re-certification
Re-examination of a previously certified watch after service, sale or a lapse of five years. Prior report number is carried forward.
Jewelry & gemstones
Diamond origin determination
Natural or laboratory-grown, with growth method stated where determinable (HPHT or CVD). Screening and confirmation instrument named in the report.
Loose stone grading
Carat, colour, clarity and cut on the standard scales, with proportions, fluorescence, and a plotted clarity diagram.
Mounted stone estimation
Estimated grades and measured or calculated weight for stones that cannot be removed, clearly labelled as estimates.
Treatment disclosure
Detection and disclosure of clarity enhancement, irradiation, heat, fracture filling, coating and diffusion.
Metal & hallmark
Non-destructive fineness testing, hallmark and maker's mark reading, and gross versus net metal weight.
Insurance & estate appraisal
Replacement or fair market value for the finished piece, itemised by component where the piece is a suite or a multi-stone mount.