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Quick access to the following information of Jewellery

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With our wealth of expertise and specialised laboratory facilities, we offer quality support services to industry partners in various functions of testing & certification.

Laboratory Facilities


Department / Campus


Contact Details

  • Conventional refractometer with built-in calibrated scale,
  • Dialdex refractometer,
  • LED light for refractometer,
  • Refractometer fluid 1.81,
  • Polariscope,
  • Glass spheres for polariscope,
  • Gemmological microscope w/overhead light 10x-64x zoom,
  • OPL - spectroscope,
  • Spectroscope - direct vision,
  • Fibre-optic lamp double tube,
  • Dischroscope,
  • Torches 2xAA Battery,
  • Ultra-violet lamps LW/SW,
  • Chelsea color filter

Pro-Act Training and Development Centre (Jewellery)  


Office Address:

LW782, 3 King Ling Road, Tseung Kwan O, New Territories, Hong Kong


General Enquiry: 

Tel: 3928-2468 / 3928-2469
E mail: jltc@vtc.edu.hk


Opening Hours:
08:30 – 17:30 (Mon – Fri)
Closed (Sat, Sun & PH)

 

 

Tests


Contact Staff


Fields of Expertise

Diamond Grading


Mr LEE Hin Chi
E mail : hclee18@vtc.edu.hk


  • Training programme

 

Gems Testing


Mr LEE Hin Chi
E mail : hclee18@vtc.edu.hk 


  • Training programme

 

 

Common Standards

Code


Name

ISO 11426


Determination of gold in gold jewellery alloys - Cupellation method (fire assay)

ISO 15093


Jewellery -- Determination of precious metals in 999 0/00 gold, platinum and palladium jewellery alloys -- Difference method using inductively coupled plasma optical emission spectroscopy (ICP-OES)

Trade Description Ordinance Cap. 362A


Trade Descriptions (Marking) (Gold and Gold Alloy) Order

Trade Description Ordinance Cap. 362C


Trade Descriptions (Marking) (Platinum) Order

Trade Description Ordinance Cap. 362K


Trade Descriptions (Definition of Fei Cui and Natural Fei Cui) Regulation (Section 2)
Trade Descriptions (Definition of Fei Cui and Natural Fei Cui) Regulation (Section 3)

Trade Description Ordinance Cap. 362L


Trade Descriptions (Definition of Diamond) Regulation 1
Trade Descriptions (Definition of Diamond) Regulation 2