SAQA All qualifications and part qualifications registered on the National Qualifications Framework are public property. Thus the only payment that can be made for them is for service and reproduction. It is illegal to sell this material for profit. If the material is reproduced or quoted, the South African Qualifications Authority (SAQA) should be acknowledged as the source.
SOUTH AFRICAN QUALIFICATIONS AUTHORITY 
REGISTERED UNIT STANDARD: 

Use a computer to evaluate options in design for rough diamond gemstones 
SAQA US ID UNIT STANDARD TITLE
259798  Use a computer to evaluate options in design for rough diamond gemstones 
ORIGINATOR
SGB Mining and Minerals 
PRIMARY OR DELEGATED QUALITY ASSURANCE FUNCTIONARY
-  
FIELD SUBFIELD
Field 06 - Manufacturing, Engineering and Technology Fabrication and Extraction 
ABET BAND UNIT STANDARD TYPE PRE-2009 NQF LEVEL NQF LEVEL CREDITS
Undefined  Regular  Level 4  NQF Level 04 
REGISTRATION STATUS REGISTRATION START DATE REGISTRATION END DATE SAQA DECISION NUMBER
Reregistered  2018-07-01  2023-06-30  SAQA 06120/18 
LAST DATE FOR ENROLMENT LAST DATE FOR ACHIEVEMENT
2024-06-30   2027-06-30  

In all of the tables in this document, both the pre-2009 NQF Level and the NQF Level is shown. In the text (purpose statements, qualification rules, etc), any references to NQF Levels are to the pre-2009 levels unless specifically stated otherwise.  

This unit standard does not replace any other unit standard and is not replaced by any other unit standard. 

PURPOSE OF THE UNIT STANDARD 
This unit standard is useful for people who are required to determine options for processing of rough diamond gemstones.

Learners credited with this unit standard are able to:
  • Identify the computer equipment and tools used to evaluate options in design for rough diamond gemstones and describe their application.
  • Determine the optimum shape of polished diamonds from rough diamond gemstones.
  • Present analysed stones for examination.
  • Conduct post-computer evaluation reconciliation, checking and security activities.

    The skills, knowledge and understanding demonstrated within this unit standard are essential for social and economic transformation and contribute to the upliftment and economic growth of the mining and minerals sector, particularly in the aspect of beneficiation.

    This unit standard is intended to promote general skills, knowledge and understanding of processing of diamond gemstones in the mining and minerals sector in order to ensure knowledgeable and informed workers. 

  • LEARNING ASSUMED TO BE IN PLACE AND RECOGNITION OF PRIOR LEARNING 
    It is assumed that learners are already competent in:
  • Requirements for security of diamonds.
  • Use of a loupe to examine diamond gemstones.
  • Basic p c skills (keyboard and mouse operation). 

  • UNIT STANDARD RANGE 
    The equipment referred to in this standard has the ability to map the internal features of the gemstone and is able to link the option analysis to pre-loaded price lists.

    The scope and context applies to the conversion of rough diamond gemstones into cut and polished diamond gemstones for sale into local and international markets. 

    Specific Outcomes and Assessment Criteria: 

    SPECIFIC OUTCOME 1 
    Identify the computer equipment and tools used to evaluate options in design for rough diamond gemstones and describe their application. 

    ASSESSMENT CRITERIA
     

    ASSESSMENT CRITERION 1 
    The computer equipment and components used to evaluate options in design for rough diamond gemstones are identified and their use in different applications is explained in terms of key features, applications and methods for use. 

    ASSESSMENT CRITERION 2 
    The stages in evaluation are explained in terms of the use of the equipment. 
    ASSESSMENT CRITERION RANGE 
    The stages must include:
  • Scanning photos.
  • Setting up for evaluation.
  • Calculating the rough mapped.
  • Identification of inclusions.
  • Price options.
     

  • ASSESSMENT CRITERION 3 
    The methods of evaluating options of rough diamond gemstones that are to be marked are described and explained in terms of accuracy and the ability to determine the outcome of parting. 

    ASSESSMENT CRITERION 4 
    The options for analysing different shapes and making different cuts when analysing rough gemstones for marking are described and their effect explained in terms of the determination of the final design and estimated valuation of polished gemstones. 

    ASSESSMENT CRITERION 5 
    The limitations of using computers to evaluate options are explained in terms of the accuracy of mapping internal inclusions and recognition of grain and grain related problems. 

    ASSESSMENT CRITERION 6 
    Practices are explained to maintain housekeeping, security of diamond gemstones, safety in the workplace and care of equipment in line with workplace specific requirements. 

    ASSESSMENT CRITERION 7 
    The consequences of deviating from workplace specific practices are described in terms of potential impact on health, safety, equipment, products and profitability. 

    SPECIFIC OUTCOME 2 
    Determine the optimum shape of polished diamonds from rough diamond gemstones. 

    ASSESSMENT CRITERIA
     

    ASSESSMENT CRITERION 1 
    The computer is prepared for operation and checked to be in good working order. 

    ASSESSMENT CRITERION 2 
    The diamond gemstone to be evaluated is selected and positioned in the equipment, ready for analysis. 

    ASSESSMENT CRITERION 3 
    The computer is activated and the gemstone observed in accordance with manufacturer's instructions and workplace specific procedures. 

    ASSESSMENT CRITERION 4 
    The location of marking lines and the optimal location of the table(s) when analysing rough diamond gemstones are described in terms of size of stones, types of cuts, predicted weight loss and predicted valuations. 
    ASSESSMENT CRITERION RANGE 
    The types of cuts must include:
  • Round stones.
  • Oval shapes.
  • Marquise shapes.
  • Pear shapes.
  • Heart shapes.
  • Emerald shape.
  • Radiant shape.
  • Trillion shape.
  • Princess shape.
     

  • ASSESSMENT CRITERION 5 
    The options for evaluation are determined according to the instructions in the parcel and the feedback from the analysis by the computer. 

    ASSESSMENT CRITERION 6 
    Hints and techniques for rough analysing diamond gemstones are explained in terms of different applications and the consequences of using inappropriate techniques. 

    SPECIFIC OUTCOME 3 
    Present analysed stones for examination. 

    ASSESSMENT CRITERIA
     

    ASSESSMENT CRITERION 1 
    The evaluated rough diamond gemstone is removed from the computer and the diamond gemstone is examined to ensure that indicative mark from the computer is clearly visible. Remedial action is taken in line with workplace specific requirements. 

    ASSESSMENT CRITERION 2 
    The results of the evaluation options are printed out, recorded in the parcel and the evaluated gemstone is secured in the parcel in accordance with workplace specific requirements. 

    ASSESSMENT CRITERION 3 
    The parcel containing the evaluated gemstone is sent for checking by a Marker to confirm the marking line, or to issue further instructions, in accordance with workplace specific instructions. 

    ASSESSMENT CRITERION 4 
    The returned parcel is either processed for onward transmission for processing, or further evaluations are undertaken, according to the instructions in the parcel. 

    SPECIFIC OUTCOME 4 
    Conduct post-computer evaluation reconciliation, checking and security activities. 

    ASSESSMENT CRITERIA
     

    ASSESSMENT CRITERION 1 
    Evaluated gemstones are returned to the appropriate storage facility/receptacle and are reconciled to the parcel instructions. 
    ASSESSMENT CRITERION RANGE 
    Reconciled must include:
  • Checking the number of diamond gemstones to parcel instructions.
  • Recording the optimal designs, predicted shapes, weight loss and valuations after processing.
  • Taking remedial action where necessary in line with workplace specific procedures.
     

  • ASSESSMENT CRITERION 2 
    Good housekeeping is exercised after rough analysing. 
    ASSESSMENT CRITERION RANGE 
    Good housekeeping must include:
  • Clean hands, equipment and accessories.
  • Operate start up and shut down procedures in accordance with specified requirements.
  • Diamonds and parcels are secured in the appropriate facilities.
     

  • ASSESSMENT CRITERION 3 
    Diamond gemstones are accounted for after indicating window opening in terms of the workplace security system. 


    UNIT STANDARD ACCREDITATION AND MODERATION OPTIONS 
  • Anyone assessing a learner or moderating the assessment of a learner against this unit standard must be registered as an assessor with the relevant Education, Training, Quality, Assurance (ETQA) Body, or with an ETQA that has a Memorandum of Understanding with the relevant ETQA.
  • Any institution offering learning that will enable the achievement of this unit standard must be accredited as a provider with the relevant Education, Training, Quality, Assurance (ETQA) Body, or with an ETQA that has a Memorandum of Understanding with the relevant ETQA.
  • Assessment and moderation of assessment will be overseen by the relevant Education, Training, Quality, Assurance (ETQA) Body, or with an ETQA that has a Memorandum of Understanding with the relevant ETQA, according to the ETQA's policies and guidelines for assessment and moderation.
  • Moderation must include both internal and external moderation of assessments, unless ETQA policies specify otherwise.
  • Anyone wishing to be assessed against this unit standard may apply to be assessed by any assessment agency, assessor or provider institution that is accredited by the relevant ETQA. 

  • UNIT STANDARD ESSENTIAL EMBEDDED KNOWLEDGE 
    The following embedded knowledge is addressed in an integrated way in the unit standard.

    Knowledge relating to rough evaluation:
  • Identification of different options when evaluating.
  • Relevant terminology and names of impurities.
  • Understanding the limitations of the equipment.
  • Implications of non-conformances, their consequences and mitigating actions.

    Skill in handling diamond gemstones:
  • The ability to pick up, handle and locate a diamond gemstone in the equipment.
  • The ability to pick and hold for examination diamond gemstones in tweezers.
  • Techniques in positioning stones for examination.

    Occupational Health, Safety and Environmental issues:
  • Awareness of hazards and risks related to use of the equipment.
  • Safety measures related to care of equipment and product.

    Safeguarding of equipment:
  • Realising the risk and potential damage that can be caused through poor handling and failure to operate the equipment properly.
  • Codes of practice for issue, handling and return of equipment.
  • Upholding the security of diamond gemstones.

    Communication:
  • Reporting requirements and ability.
  • Communicating with relevant personnel.
  • Liaison with associated operations and personnel. 

  • UNIT STANDARD DEVELOPMENTAL OUTCOME 
    N/A 

    UNIT STANDARD LINKAGES 
    N/A 


    Critical Cross-field Outcomes (CCFO): 

    UNIT STANDARD CCFO WORKING 
    Work effectively with others as members of a team, group, organisation or community.

    Note:
  • The ability and willingness of the learner to accept instructions correctly and to know when to refer issues to the appropriate colleagues in an acceptable manner indicates the ability to work effectively as a team member within the structure of the organisation. 

  • UNIT STANDARD CCFO ORGANISING 
    Organise and manage themselves and their activities responsibly and effectively.

    Note:
  • The security of and accountability for diamond gemstones and the complying with good housekeeping practices indicates the learner's ability to organise and manage activities in the work environment. 

  • UNIT STANDARD CCFO COLLECTING 
    Collect, analyse, organise and critically evaluate information.

    Note:
  • The ability of the learner to receive the parcel, conduct the evaluations and record the findings, work under minimal supervision and be accountable for the custody and security of diamond gemstones indicates the ability to collect, organise and evaluate information. 

  • UNIT STANDARD CCFO COMMUNICATING 
    Communicate effectively, using visual, mathematical and/or language skills in the modes of oral and/or written presentations.

    Note:
  • The ability to interpret and issue accurate instructions in the parcel indicates the learner's ability to communicate effectively through visual and language skills. 

  • UNIT STANDARD CCFO SCIENCE 
    Use science and technology effectively and critically showing responsibility towards the environment and health of others.

    Note:
  • The ability to apply the equipment used to evaluate and interpret the options demonstrates the critical use of science and technology in the safeguarding of the material in seeking the optimal return on the diamond gemstone. 

  • UNIT STANDARD ASSESSOR CRITERIA 
    N/A 

    REREGISTRATION HISTORY 
    As per the SAQA Board decision/s at that time, this unit standard was Reregistered in 2012; 2015. 

    UNIT STANDARD NOTES 
    Terminology:

    Specified Requirements:

    Specified requirements include legal and site-specific requirements and are contained in one or more of the following documents:

    Legal:
  • The Bargaining Council for the Diamond Cutting Industry Main Agreement.
  • Regulations of the Diamonds Act, No 56 of 1986, as amended.
  • The Occupational Health and Safety Act, No 85 of 1993.
  • SABS and other accredited standards and quality assurance measures.
  • The glossary of terms about the terminology of the industry issued by the Bargaining Council for the Diamond Cutting Industry.

    Site-Specific:
  • Workplace rules and procedures regarding the issue and custody of diamonds and equipment.
  • Occupational Health and Safety risk management programme.
  • Managerial Instructions.
  • User manuals supplied by equipment manufacturers.
  • Working Guides, tariff agreements, policies and procedures.
  • Equipment and materials specifications. 

  • QUALIFICATIONS UTILISING THIS UNIT STANDARD: 
      ID QUALIFICATION TITLE PRE-2009 NQF LEVEL NQF LEVEL STATUS END DATE PRIMARY OR DELEGATED QA FUNCTIONARY
    Elective  64249   Further Education and Training Certificate: Diamond Design and Evaluation  Level 4  NQF Level 04  Reregistered  2023-06-30  MQA 


    PROVIDERS CURRENTLY ACCREDITED TO OFFER THIS UNIT STANDARD: 
    This information shows the current accreditations (i.e. those not past their accreditation end dates), and is the most complete record available to SAQA as of today. Some Primary or Delegated Quality Assurance Functionaries have a lag in their recording systems for provider accreditation, in turn leading to a lag in notifying SAQA of all the providers that they have accredited to offer qualifications and unit standards, as well as any extensions to accreditation end dates. The relevant Primary or Delegated Quality Assurance Functionary should be notified if a record appears to be missing from here.
     
    NONE 



    All qualifications and part qualifications registered on the National Qualifications Framework are public property. Thus the only payment that can be made for them is for service and reproduction. It is illegal to sell this material for profit. If the material is reproduced or quoted, the South African Qualifications Authority (SAQA) should be acknowledged as the source.