Unit of competency Outline

Date retreived
22/07/2026 6:19 AM AWST

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Cut and polish solid gemstones

Cut and polish solid gemstones

Unit of competency
National Code
MEM19058
State Code
OEU79
TGA Status
Current
DTWD Status
Approved
Current Release Number
1.00
Current Release Date
19/12/2022
View on TGA
State Implementation and Classification
Approved Date
19/04/2023
Field of Education
100307 - Jewellery Making
Original Release Date
19/04/2023
Nominal Hours
72
Description
This unit of competency defines the skills and knowledge required to cut and polish a solid gemstone to make a finished cabochon, or other shape, from a pre-formed stone. It is based on deleted unit CUVOPA204A Cut and polish solid opals.This unit applies to individuals processing gemstones in a small or large-scale production context. They use and adapt technical knowledge and skills to produce work that meets pre-determined jewellers’ requirements.No licensing, legislative or certification requirements apply to this unit at the time of publication.Band: AUnit Weight: 8
Notes
Elements and Performance Criteria
1. Determine job requirements
  • 1.1 Follow standard operating procedures (SOPs)
  • 1.2 Comply with work health and safety (WHS) requirements at all times
  • 1.3 Identify job requirements from specifications
2. Prepare to cut a gemstone solid
  • 2.1 Select tools, machinery and equipment to be used based on job requirements
  • 2.2 Identify and obtain consumables required for cutting a gemstone solid
  • 2.3 Use correct process to attach stone to a dop-stick
3. Cut and polish top surface of gemstone
  • 3.1 Fine grind shape or dome ensuring continuity of contour and maintaining job requirements
  • 3.2 Polish the gemstone to remove grinding marks using appropriate polishing mediums or diamond wheel according to job requirements
  • 3.3 Polish top surface of gemstone to a high lustre with polishing compound
4. Cut and polish back surface of gemstone
  • 4.1 Remove stone from dop, turn over and replace on dop checking alignment
  • 4.2 Grind the back of the stone to job requirements maintaining continuity of form and alignment
  • 4.3 Polish to remove grinding marks and polish based on job requirements
  • 4.4 Remove the stone from the dop and clean the stone
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