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 THAT HAS PASSED THE END DATE: 

Rondist diamond gemstones by hand 
SAQA US ID UNIT STANDARD TITLE
260410  Rondist diamond gemstones by hand 
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  12 
REGISTRATION STATUS REGISTRATION START DATE REGISTRATION END DATE SAQA DECISION NUMBER
Passed the End Date -
Status was "Reregistered" 		 2018-07-01  2023-06-30  SAQA 06120/18 
LAST DATE FOR ENROLMENT LAST DATE FOR ACHIEVEMENT
2026-06-30   2029-06-30  

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 intend following a career in the diamond processing sector and who are required to rondist diamond gemstones by hand. This process is known as rondisting.

Learners credited with this unit standard are able to:
  • Identify the equipment and tools used to rondist diamond gemstones by hand and describe their application.
  • Demonstrate knowledge of the structure of diamond gemstones and the implications for rondisting by hand.
  • Prepare to rondist diamond gemstones by hand.
  • Carry out rondisting by hand on diamond gemstones.
  • Conduct post-rondisting-by-hand cleaning, 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 the diamond processing industry 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:
  • Advanced use of a loupe to examine a diamond gemstone.
  • Identify polishing grains and planes in diamond gemstones.
  • Set a sharp for cutting diamond gemstones by hand.
  • Operate and maintain a bruting machine.
  • Explain the requirements for security of diamonds. 
    		•

    UNIT STANDARD RANGE 
    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.

    This unit standard applies to persons rondisting any type of sawn or makeable diamond gemstones under minimal supervision. 

    Specific Outcomes and Assessment Criteria: 

    SPECIFIC OUTCOME 1 
    Identify the equipment and tools used to rondist diamond gemstones by hand and describe their application. 

    ASSESSMENT CRITERIA     

    ASSESSMENT CRITERION 1 
    The tools and their components used for rondisting by hand are identified and their use in different applications is explained in terms of key features, applications and methods for use. 

    ASSESSMENT CRITERION 2 
    The process for rondisting rough diamonds by hand is explained in terms of the properties of diamonds and the effect of using diamonds to cut other diamonds. 

    ASSESSMENT CRITERION 3 
    Practices are explained to maintain good housekeeping, safety in the workplace and care of equipment in line with workplace specific requirements. 

    ASSESSMENT CRITERION 4 
    The consequences of deviating from workplace specific practices are described in terms of potential impact on health, safety, equipment, products and productivity. 

    SPECIFIC OUTCOME 2 
    Demonstrate knowledge of the structure of diamond gemstones and the implications for rondisting by hand. 

    ASSESSMENT CRITERIA     

    ASSESSMENT CRITERION 1 
    Two, three and four points in diamond gemstones are identified for different diamond types. 

    ASSESSMENT CRITERION 2 
    Problems that can be encountered when rondisting diamond gemstones by hand are classified in terms of types of problems, key features, implications for bruting by hand and methods to overcome such problems. 
    ASSESSMENT CRITERION RANGE 
    The types of problems that can be encountered must include:
  • Gletzes.
  • Holes.
  • Flaws.
  • Impurities.
  • Naturals.
  • Degree of roundness.
  • Size of naifs.
  • Pressure of cutting.
  • State of the sharp.
  • Length of the bruting stick.
  • Position of the rondister relative to the equipment.
     
    		•

    ASSESSMENT CRITERION 3 
    Hints and techniques for rondisting diamond gemstones by hand are explained in terms of different applications and the consequences of using inappropriate techniques. 

    SPECIFIC OUTCOME 3 
    Prepare to rondist diamond gemstones by hand. 

    ASSESSMENT CRITERIA     

    ASSESSMENT CRITERION 1 
    Appropriate personal protective clothing and equipment is selected and applied according to required standards of occupational health and safety. 

    ASSESSMENT CRITERION 2 
    The rondisting equipment is checked to ensure it is ready for use. Any problems encountered are dealt with in terms of workplace specific procedures. 

    ASSESSMENT CRITERION 3 
    Stones received are checked and set in appropriate pots or dops. Any problems encountered are dealt with in terms of workplace specific procedures. 

    ASSESSMENT CRITERION 4 
    Set stones are located and secured in the chuck head of the rondisting machine. 

    ASSESSMENT CRITERION 5 
    The operation of the machine is checked to ensure that the rondisting activity will give the required results. 

    SPECIFIC OUTCOME 4 
    Carry out rondisting by hand on diamond gemstones. 
    OUTCOME NOTES 
    In the case of straight-up stones, rough bruting and rondisting can be performed simultaneously. 

    ASSESSMENT CRITERIA     

    ASSESSMENT CRITERION 1 
    Stones are rondisted by hand according to instructions given in the parcel and defined quality and output standards. 
    ASSESSMENT CRITERION RANGE 
    Defined quality and output standards will be found in the employer's:
  • Work specifications.
  • Tariff agreements.
  • Parcel instructions.
  • Policies and Procedures.
     
    		•

    ASSESSMENT CRITERION 2 
    The equipment, stone and the setting of the stone and sharp are frequently checked for any defects during the process of rondisting by hand. Remedial action is taken in line with workplace specific procedures. 

    ASSESSMENT CRITERION 3 
    Weights of diamond gemstones are ensured to be within the laid down tolerance levels after rondisting by hand. 
    ASSESSMENT CRITERION RANGE 
    Laid down tolerance levels will be found in the employer's:
  • Work specifications.
  • Tariff agreements.
  • Policies and Procedures.
     
    		•

    SPECIFIC OUTCOME 5 
    Conduct post-rondisting-by-hand cleaning, checking and security activities. 

    ASSESSMENT CRITERIA     

    ASSESSMENT CRITERION 1 
    Diamond gemstones are removed from machine chuck heads and pots after rondisting by hand, cleaned and inspected for quality of finish in relation to workplace specifications. Remedial action is taken in line with workplace specific procedures. 

    ASSESSMENT CRITERION 2 
    Housekeeping is exercised after rondisting diamond gemstones by hand in accordance with workplace procedures. 
    ASSESSMENT CRITERION RANGE 
    Good housekeeping must include:
  • Clean pots, dops and rondisting equipment.
  • Replace pots, dops and bruting stick into correct storage facilities.
  • Maintenance of personal protective clothing and equipment.
     
    		•

    ASSESSMENT CRITERION 3 
    Diamond gemstones are accounted for after rondisting by hand in accordance with 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 the properties of a diamond gemstone:
  • Understanding the various properties of the diamond and the effect that rondisting may have.
  • The action that the different components of rondisting equipment may have on the diamond.
  • Importance of equipment and rondister being positioned for rondisting by hand.
  • Awareness of the damage to a diamond that can be caused by equipment that is not positioned properly, or where the sharp is not properly applied to the gemstone.

    Occupational Health, Safety and Environmental issues:
  • Significant hazards and risks related to gemstone processing, their consequences and mitigating actions.
  • Safety measures related to diamond processing.
  • PPE requirements and the reason for each.
  • Impact on the environment and mitigating actions.
  • Emergency procedures.

    Legislative and structural environment:
  • Importance of adherence to health and safety requirements during processing.
  • Importance of care and maintenance of tools and equipment.
  • Codes of practice.

    Communication:
  • Reporting requirements and ability.
  • Communicating with relevant personnel.
  • Liaison between personnel in various functions.

    Handling and custody of diamond gemstones:
  • Achieving specified production requirements.
  • Identify the equipment and explain the specification and functions.
  • Preparation.
  • Examination.
  • Handling of diamond gemstones.
  • Monitoring and control.

    Monitoring processing and impurities:
  • Weight loss.
  • Security requirements.
  • Collection and disposal of diamond dust.
  • Use of tools and equipment.
  • Use of personal protective equipment. 
    		•

    UNIT STANDARD DEVELOPMENTAL OUTCOME 
    N/A 

    UNIT STANDARD LINKAGES 
    N/A 


    Critical Cross-field Outcomes (CCFO): 

    UNIT STANDARD CCFO IDENTIFYING 
    Identify and solve problems and make decisions using critical and creative thinking.

    Note:
  • The ability of the candidate to identify flaws and impurities in diamond gemstones and to identify when a stone is not round and rectify this contributes to the problem solving ability. 
    		•

    UNIT STANDARD CCFO WORKING 
    Work effectively with others as a member of a team/group/organisation/community.

    Note:
  • The ability and willingness of the candidate to accept and interpret work 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 oneself and one's activities responsibly and effectively.

    Note:
  • The preparation of tools and equipment prior to commencing rondisting by hand and the control over weight loss during the process of rondisting by hand and the complying with good housekeeping practices indicates the candidate's ability to organise and manage activities in the work environment. 
    		•

    UNIT STANDARD CCFO COLLECTING 
    Collect, organise and evaluate information.

    Note:
  • The ability of the candidate to assimilate instructions and be accountable for the custody and weight retention of diamond gemstones indicates the ability to collect, organise and evaluate information. 
    		•

    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 tools of rondisting, to examine the effect of the rondisting process on diamond gemstones and to abide by safety and housekeeping standards demonstrates the critical use of science and technology in the safeguarding of the material, the environment, fellow workers and oneself. 
    		•

    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.
  • Occupational Health and Safety Act (Act 85/1993).
  • Mandatory Codes of Practice.
  • The glossary of terms about the terminology of the industry issued by the Bargaining Council for the Diamond Cutting Industry.

    Site-Specific:
  • Hazard Identification and Risk Assessments (HIRA).
  • Occupational Health and Safety Risk Management Programme.
  • Managerial Instructions.
  • Workplace diamond gemstone security system.
  • 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  64729   Further Education and Training Certificate: Diamond Processing  Level 4  NQF Level 04  Passed the End Date -
    Status was "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.