Services
Jewellery Appraisals
- Diamond and Coloured stone Reports include symmetry and proportion analysis along with 'Fingerprint' diagrams of internal and external clarity blemishes - dimensions - colour - actual weight - other applications including ;
digital photographs - digital X-Ray radiographs - X-Ray Fluorescent analysis Reports and Spectrum analysis Reports.
- Valuation and Evaluation Appraisals - direct to the Public - Industry - Legal - Estate - Insurance - purposes.
- Up to-date international Price Guide listings.
- Industry standard G.I.A. protocols and methodology.
- Comprehensive Gemological Journals and Library.
- Comprehensive industry information. .
- Customised AppraisalPlus database and editor, audited, computised Appraisal system.
- Digital jewellery photography.
- X-ray radiographs
- X-Ray Fluorescence analysis
- Geiger and Mikon Radiation detection units
- SAS2000 Spectraphotometer Analysis and Reports
- Presentation Record/Reports with photocopies and Folder.
Laser Inscription Service
Diamond Report numbers, stock numbers; Customers dates, initials, or personal message, or your shop Logo can now be safely inscribed on a diamond.This new service uses advanced cold-laser technology that is guaranteed not to damage any diamond. Inscriptions can be carried out on all loose diamonds that have a girdle thickness of at least 0.1mm (thin), and on most mounted stones.
An Important Diamond or Gemstone needs an Important Grading Report
- Scientific non-destructive 'Forensic' Gemological Protocols'
- Diamond, Pearl and Coloured stone Identification - evaluation - valuation Appraisal.
- Electronic Metal analysis. Ultrasonic and Electrolysis & Polish cleaning, Dichroscope - Polariscope - Refractometer - Sodium light source - Lw/Sw Ultaviolet fluorescent analysis. Spectroscopes - multi Filter tests. Radiation detection and other Gemological analysis and ancillary identification tests.
- Electronic digital Gemscan identification unit.
- Zweiss and Leca Microscopes - using fibre optic - darkfield - oblique and transmitted lighting and applying immersion Microscopy techniques.
- Natural/Synthetic Masters of known Genm/s species/samples.
- Electronic digital carat/gram Balances - calibrated/certified annually for accurate ACTUAL weights.
- Hydrostatic specific gravity tests.
- Thermal tests.
- OGI laser measurement grading of symmetry and proportion analysis of Diamonds cut grades.
- Diamond colour grading using an electronic Colorimeter and a set of Master comparison colour grading Diamonds and the SAS2000 Spectrophotometer colour Spectrum Analysis.
- New Zealand’s only G.I.A. ColorMaster for digital colour grading of Hue - Tone and Saturation.
- New Zealand’s only Gemological X-Ray digital units for identification of Pearls for authentication of origin, type, i.e. Cukltured, Natural, Tissue Grafted, and to identify clarity-enhancement of Diamonds and Coloured Gems.
- X-Ray Fluorescent analysis of Diamonds and Coloured gems.
- Customised AppraisalPlus database and editor, audited, computised Appraisal system.
Note: Some if not all the equipment listed will/may be used for FORENSIC TESTING - ANALYSIS and may/will be required depending on the particular item presented - and any limitations that may preclude any of the above - will be at the discretion of the practitioner.