National Diamond Valuers provide independent diamond valuation services, specialising in the assessment, identification, valuation and certification of natural white and fancy coloured diamonds, to help you establish the true origin and value of your diamond.
Our qualified gemmologists are authorities on diamond evaluation, and our exceptional laboratory facilities are equipped with state-of-the-art diamond-grading technology, enabling us to provide you with accurate grading, and specialist gemmological valuation and certification services.
With years of professional experience in diamond assessment and valuation, National Diamond Valuers can offer you the expert advice and skilled services you need to assure the quality and value of your diamond.
National Diamond Valuers provide one of the best diamond certification services in Australia, so you can be sure that the quality of the stone you have bought accurately reflects the financial investment you have made.
All diamonds certified by National Diamond Valuers are evaluated and graded by our expert gemmologists, using standardised testing processes and our advanced diamond-grading technology. So, when you have your diamonds certified by National Diamond Valuers, you can be confident that your stone has been assessed against the exacting standards of one of the most stringent valuation and certification programs in the country.
Regardless of where, or from whom, you purchased your diamond, our qualified staff will be able to provide you with accurate information and advice on its origin, and its exact value. Our meticulous grading and valuation process includes:
Weighing and measuring your stone using high-precision, laser proportion instruments.
Screening your stone to accurately determine whether it is natural or created.
Grading your stone for colour, cut, clarity and transparency.
Plotting and identification of your stone, to determine its origin and map each inclusion.
Fancy coloured diamonds, such as those from the vast array of coloured diamonds produced by the Argyle Diamond Mine – including the full spectrum of champagne, cognac, chocolate, red, pink, violet and blue diamonds – are also specially graded according to their respective individual colour scales. We specialise in Argyle DNA analysis and colour grade matching, with access to Australia’s only certified Argyle pink and red diamond master set.
A Diamond Certificate from National Diamond Valuers is authoritative proof that your diamond has been thoroughly tested, evaluated and graded using advanced technology and the latest equipment in combination with scrupulous procedures and the most rigorous standards.