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Evidence Guide: MEM19058 - Cut and polish solid gemstones

Student: __________________________________________________

Signature: _________________________________________________

Tips for gathering evidence to demonstrate your skills

The important thing to remember when gathering evidence is that the more evidence the better - that is, the more evidence you gather to demonstrate your skills, the more confident an assessor can be that you have learned the skills not just at one point in time, but are continuing to apply and develop those skills (as opposed to just learning for the test!). Furthermore, one piece of evidence that you collect will not usualy demonstrate all the required criteria for a unit of competency, whereas multiple overlapping pieces of evidence will usually do the trick!

From the Wiki University

 

MEM19058 - Cut and polish solid gemstones

What evidence can you provide to prove your understanding of each of the following citeria?

Determine job requirements

  1. Follow standard operating procedures (SOPs)
  2. Comply with work health and safety (WHS) requirements at all times
  3. Identify job requirements from specifications
Follow standard operating procedures (SOPs)

Completed
Date:

Teacher:		 Evidence:

 

 

 

 

 

 

 

Comply with work health and safety (WHS) requirements at all times

Completed
Date:

Teacher:		 Evidence:

 

 

 

 

 

 

 

Identify job requirements from specifications

Completed
Date:

Teacher:		 Evidence:

 

 

 

 

 

 

 

Prepare to cut a gemstone solid

  1. Select tools, machinery and equipment to be used based on job requirements
  2. Identify and obtain consumables required for cutting a gemstone solid
  3. Use correct process to attach stone to a dop-stick
Select tools, machinery and equipment to be used based on job requirements

Completed
Date:

Teacher:		 Evidence:

 

 

 

 

 

 

 

Identify and obtain consumables required for cutting a gemstone solid

Completed
Date:

Teacher:		 Evidence:

 

 

 

 

 

 

 

Use correct process to attach stone to a dop-stick

Completed
Date:

Teacher:		 Evidence:

 

 

 

 

 

 

 

Cut and polish top surface of gemstone

  1. Fine grind shape or dome ensuring continuity of contour and maintaining job requirements
  2. Polish the gemstone to remove grinding marks using appropriate polishing mediums or diamond wheel according to job requirements
  3. Polish top surface of gemstone to a high lustre with polishing compound
Fine grind shape or dome ensuring continuity of contour and maintaining job requirements

Completed
Date:

Teacher:		 Evidence:

 

 

 

 

 

 

 

Polish the gemstone to remove grinding marks using appropriate polishing mediums or diamond wheel according to job requirements

Completed
Date:

Teacher:		 Evidence:

 

 

 

 

 

 

 

Polish top surface of gemstone to a high lustre with polishing compound

Completed
Date:

Teacher:		 Evidence:

 

 

 

 

 

 

 

Cut and polish back surface of gemstone

  1. Remove stone from dop, turn over and replace on dop checking alignment
  2. Grind the back of the stone to job requirements maintaining continuity of form and alignment
  3. Polish to remove grinding marks and polish based on job requirements
  4. Remove the stone from the dop and clean the stone
Remove stone from dop, turn over and replace on dop checking alignment

Completed
Date:

Teacher:		 Evidence:

 

 

 

 

 

 

 

Grind the back of the stone to job requirements maintaining continuity of form and alignment

Completed
Date:

Teacher:		 Evidence:

 

 

 

 

 

 

 

Polish to remove grinding marks and polish based on job requirements

Completed
Date:

Teacher:		 Evidence:

 

 

 

 

 

 

 

Remove the stone from the dop and clean the stone

Completed
Date:

Teacher:		 Evidence:

 

 

 

 

 

 

 

Assessed

Teacher: ___________________________________ Date: _________

Signature: ________________________________________________

Comments:

 

 

 

 

 

 

 

 

Instructions to Assessors

Required Skills and Knowledge