Independent diamond valuator expert needed for siu valuation integrity assessment

The SIU requires the appointment of an independent and suitably qualified Diamond Valuator Expert to assess the validity of valuation outcomes and the integrity of the valuation process. The expert must review legislation, agreements, and valuation reports, assess compliance with standards, analyse methodologies, and identify irregularities or wrongdoing. The deliverables include a detailed written report, expert opinions for legal proceedings, and potential testimony as an expert witness. The contract is a once-off engagement with a maximum budget of R1,000,000.00.

Closing date and time: 10 July 2026 at 11:00. RFQ validity period: 90 days from the official closing date.

Submission email: [email protected]. SIU Head Office address: 74 Water Meyers Street, Rentmeester Building, Meyers Park, First Floor, Gauteng.

Submit quotations exclusively to: [email protected]. Only submissions received at this email address on or before the closing date and time will be considered. Quotations must be on company letterhead. All pages of the quotation must be signed by the responsible person. A fully completed and signed RFQ document, including SBD4 and SBD6.1, must be submitted. Quotations must reflect a correct cost breakdown, with prices inclusive of VAT for VAT-registered service providers. A separate quote on the bidder’s letterhead is required. The quote must be valid for 30 days. Late or incomplete submissions will be disqualified. Bids must be submitted on the official forms provided and not re-typed. SIU reserves the right to withdraw any quotation at any time. SIU may invite suppliers to present their proposals for final decision. Proposals become the property of SIU and will not be returned.

Scope of Work (Terms of Reference): The appointed expert must address all 18 aspects of the scope, including: Review all applicable legislation, directives, or prescripts relating to diamonds. Review specifications and agreements between service providers and relevant institutions. Review all diamond valuation reports from current and previous valuators. Assess completeness, consistency, and credibility of reports. Evaluate compliance with recognised diamond valuation standards and best practices. Analyse methodologies, assumptions, grading systems, and criteria applied by valuators. Assess accurate and consistent application of the 4 Cs (cut, colour, clarity, carat weight). Identify deviations from industry norms, professional standards, or ethical practices. Conduct detailed comparisons of valuation results. Identify material variances in grading, outcomes, and conclusions. Provide technical explanations for differences and assess irregularities. Review processes, controls, documentation, chain of custody, and verification procedures. Identify procedural weaknesses, non-compliance, or red flags. Highlight indicators of wrongdoing, misrepresentation, conflict of interest, or unethical conduct. Assess influence of improper processes or external factors. Analyse diamonds selected for beneficiation and the 10% allocated. Perform any additional procedures deemed necessary by the SIU. Expected Deliverables: Provide expert opinion on irregular conduct. Prepare a detailed written report outlining findings, comparisons, observations, and conclusions. Document discrepancies, irregularities, and potential wrongdoing. Provide expert opinions for SIU’s investigative, disciplinary, civil recovery, or criminal proceedings. Provide clarification or testify as an expert witness in court/tribunal if required.

Bidders must demonstrate experience in diamond valuation by submitting at least three reference letters from clients. Must provide a CV of a Diamond Valuator Expert with 10+ years’ experience in the diamond industry, including knowledge of the 4 Cs (cut, colour, clarity, carat weight), inspection of precious metals, and compliance with the Precious Metals Act. Must submit proof of a valid Dealer’s Licence (section 32) and a valid Licence of an authorised representative (section 54 of the Principal Act). Must address all 18 aspects of the scope of work in the proposal.

Price must include the entire scope of work, logistics, and disbursements. Quotation must reflect a correct cost breakdown. Prices must be inclusive of VAT for VAT-registered service providers. A separate quote on the bidder’s letterhead is required. All rates must be in South African Rand and held firm for the bid period. No amendments are allowed after the RFQ closing date. SIU reserves the right to use its calculated total for evaluation. Pricing schedule: Provide rate per hour for 1x Diamond Valuator Expert. Total must be indicated (VAT exclusive).

Price must include the entire scope of work, logistics, and disbursements required to deliver the final product to SIU within the set timelines. Quotation must reflect a correct cost as per the specification. Prices quoted must be inclusive of VAT for VAT-registered service providers. All rates must be quoted in South African Rand and held firm for the bid period. No amendments to quotations are allowed after the RFQ closing date and time. SIU reserves the right to use its calculated total amount for evaluation and may seek confirmation. Pricing schedule: Provide rate per hour for 1x Diamond Valuator Expert. Total must be indicated (VAT exclusive). Project budget cannot exceed R1,000,000.00 (all applicable taxes included). Payments will be made within 30 days of receipt of invoice. No pre-payments are allowed.

Mandatory Requirements: Service provider must be registered on the National Treasury Central Supplier Database (CSD). Must be tax compliant (CSD Overall Tax Status must be compliant). Must confirm quoted price and delivery align with the Scope of Work/Terms of Reference. Must submit at least three reference letters from clients demonstrating experience in diamond valuation projects. Must submit a CV of a Diamond Valuator Expert with 10+ years’ experience in the diamond industry, including knowledge of the 4 Cs (cut, colour, clarity, carat weight), inspection of precious metals, and compliance with the Precious Metals Act. Must submit proof of a valid Dealer’s Licence issued in terms of section 32. Must submit proof of a valid Licence of an authorised representative issued in terms of section 54 of the Principal Act. Must address all 18 aspects of the scope of work in the proposal. Administrative Compliance Documents: ID copies of company directors. CIPC company registration. SARS PIN. B-BBEE Certificate or Sworn Affidavit (for EME & QSE) to qualify for preference points. Fully completed and signed RFQ document, including SBD4 and SBD6.1. Tax Compliance: Bidders must submit a Tax Compliance Status (TCS) PIN or certificate. TCS can be obtained via e-filing on the SARS website (www.sars.gov.za). For consortia/joint ventures/sub-contractors, each party must submit a separate TCS certificate/PIN/CSD number. If no TCS is available but the bidder is registered on CSD, the CSD number must be provided. No bids will be considered from persons in the service of the state or entities with directors/members in the service of the state. Bidders must not be listed on the National Treasury’s database of restricted suppliers and defaulters or under investigation for corrupt activities. Bidders must confirm they are not associated with any other tendering entities in a way that could cause a conflict of interest.

No bids will be considered from persons in the service of the state or entities with directors/members in the service of the state. Quotations must be submitted on company letterhead. All copyright and intellectual property rest with SIU. Goods/services are subject to SIU’s conditions, policies, and procedures. Bidders must ensure SIU receives compliant Tax Status documentation. Purchases are made via official order forms; no delivery or service rendering before receipt of an official order. Vendors must register on the National Treasury Central Supplier Database (CSD). Bidders must certify the accuracy of submitted information. Payments are effective within 30 days of invoice receipt. No late responses will be considered. Quotes must include a valid B-BBEE status certificate with a SANAS logo or Sworn Affidavit. No pre-payments are allowed; payments occur within 30 working days of invoice date. Successful bidders must deliver goods/services in full by the stipulated date. Bidders must accept SIU’s conditions, which supersede their own. Successful bidders must sign a written contract form (SBD7).

Quotations must be submitted to [email protected]. Proposals become SIU property and will not be returned. Service providers must commit to post-support service as required. Payments will be made within 30 days of receipt of invoice. CSD Tax Compliance status must be verified via the CSD Summary report. SIU Head Office is located at 74 Water Meyers Street, Rentmeester Building, Meyers Park, First Floor. Bidders must submit a B-BBEE status level verification certificate or Sworn Affidavit to qualify for preference points. Quotes must be valid for 30 days. All quotations must include a CSD registration. Quotations must reflect a cost breakdown with prices inclusive of VAT. All pages must be signed. SIU reserves the right to withdraw quotations or request presentations.

Evaluation is based on the 80/20 preference point system. 80 points are allocated for price (lowest acceptable bid scores highest). 20 points are allocated for B-BBEE status level of contributor, with additional points for Black ownership. Responsive bids must meet all eligibility, mandatory, and administrative criteria. SIU promotes 'best value' over lowest price, considering expertise, experience, and technical proposal quality. Bids are subject to integrity screening and vetting.