Equipment

Diamond Grading Equipment - Proportion - Colour - Clarity Grading

  • Microscopes - Zeiss and Leica S6 Microscopy with Fibre-Optic - Darkfield - Oblique and Tramitted
    lighting. systems 
  • OGI systems Megascope- To grade symmetry and proportions of Diamond cut analysis
  • Eickhorst Diamond Pearl/Opal and Coloured Gem Desk-Light system - with ultravioleti controlled background lighting.
  • Set of (7) Master colour comparison grading Diamonds E-R
  • X-Ray radiographs to identify internal/external clarity enhancement.
  • X-Ray Fluorescence analysis.
  • Ultraviolet L.w and S.w.Ultraviolet to grade Fluorescence radiation reaction.
  • Electronic digital carat/gram Balances for accurate ACTUAL weights.
  • Electronic digital dimension Measurement gauges.
  • SAS2000 Spectraphotometer and Analysis to colour grade Diamonds by spectrum - to detect (synthetic) and/or (HPHT) Diamonds. Coloured stone identification and spectrum analysis of enhancements and treatments.
  • SSEF (SWUV) unit to detect evidence of (synthetic) and/or (HPHT) treatment of Diamonds

OGI Megascope

A diamond is graded with Laser measurment precision and for cut symmetry grading analysis and demonstrating the proportion analysis of the new G.I.A. Diamond Cut Grading System.. Used to compare a Diamond within
Excellent -  Poor diamond symmetry - proportions and cut grade,     The Computer operated unit is an invaluable tool in the presentation of Diamond Reports. which include Crown angles, table percentage, facet angles crown height percentage, girdle thickness percentage, pavilion depth percentage, and all details of the gem/s and are quickly and accurately determined and easily compared to the GIA s' exacting standards..

Coloured stone Identification

  • Ultrasonic cleaning equipment - Dichroscope - Polariscope, Refractometer, Sodium monochromatic light source.
  • L.w.and S.w.Utraviolet unit. to grade Fluorescence radiation reaction.
  • SAS2000 Spectraphotometer for Spectrum Analysis 
  • Multi Filter analysis.
  • Electronic Digital Gemscan identification unit.
  • Immersion Microscopy analysis.
  • Comprehensive Natural/Synthetic assorted known Gem species/samples.
  • Electronic digital carat/gram Balances calibrated annually for accurate ACTUAL weights.
  • Hydrostatic specific gravity tests.
  • Thermal tests and Geiger and Mikon radiation detection units
  • New Zealand’s only G.I.A. ColorMaster for colour grading.
  • Gemological X-Ray units for the identification radiographs of Pearls, Natural - Cultured - Tissue Grafted and the clarity enhancement of coloured stones.
  • X-Ray Fluorescence and analysiss.

G.I.A ColorMaster
 

The ColorMaster acts as a mechanical memory device for colour, - HUE  TONE and SATURATION  allowing us to reproduce the COLOUR and IMAGE of virtually all gemstones. The ColorMaster can produce more than a million colors for color matching gemstones - you can think of it as a universal set of master stones.
With the ColorMaster we can consistently describe and grade the color of colored gems, and get dependable, repeatable color images. This allows me to show my customers the appearance of gems which are available even though they are not presently in my inventory. With ColorMaster notations, stones can be easily matched

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.