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Diamond Certification

AnchorCert is an Independent Centre of Excellence based in the UK, offering a wide range of certification services and reports for diamonds, gemstones and pearls. Unless otherwise stated, all diamond solitaires over 50 points (1/2 carat) sold by F.Hinds are independently certificated and graded by AnchorCert.

AnchorCert has a fully equipped state of the art laboratory which is specifically designed to assess and certificate diamonds and gemstones. The AnchorCert laboratory has a range of highly sophisticated equipment that can accurately screen for, and positively identify, treated and synthetic diamonds. Enhancements such as fracture filling and laser treatments are frequently detected using high power magnification. A combination of results from the Diamond Sure™, Diamond View™, Raman Spectroscope, FTIR (Fourier Transform Infra-Red), UV-Vis and XRF is used by the experienced and highly qualified AnchorCert gemmologists in order to reach a final decision.

AnchorCert is a division of the Birmingham Assay Office, a non statutory organisation founded by Act of Parliament in 1773, to provide protection to traders and consumers alike. The Birmingham Assay Office offers a complete jewellery service including hallmarking; SafeGuard independent jewellery, watch and silverware valuations; precious metal analysis; product safety investigation; nickel and lead testing from the laboratory, and of course, AnchorCert Diamond and Gemstone Certification.

AnchorCert is the only UK Diamond Grading Laboratory to achieve accreditation to ISO 17025 from UKAS. The AnchorCert service is undertaken by highly qualified Gemmologists and Diamond Graders producing independent, expert reports.

What to look for when purchasing a diamond

Every diamond is unique and has a beauty all of its own. You will find a huge choice available; something to suit every budget. The factors that influence the value are the quality of the diamond – the clarity, colour and cut – and its size (carat) plus of course, its precious metal setting. You will find a simple guide to the 4 C's below.

Your jeweller has years of experience and expertise and will be able to explain the characteristics of the diamond you choose. Don’t be afraid to ask questions and benefit from their specialised knowledge.

The 4 C’s

Diamond quality is judged by four primary factors:

Diamond weight is stated in carats, with one carat equaling 1/5th of a gram in weight. Less than 5% of gem quality diamonds are one carat or above.

Diamonds are formed under tremendous heat and pressure and, as a result of this process, internal and external characteristics which affect the clarity of diamonds are common. Internal characteristics are called inclusions, external characteristics are known as blemishes. These characteristics are used by gemologists to grade the clarity of diamonds and the GIA provides a scale of 11 grades, ranging from "Flawless" (FL) to "Included" (I).

Most people think that diamonds are colourless, but in fact most diamonds used in jewellery have slight tints of yellow or brown. Totally colourless and rare ‘fancy coloured’ diamonds (e.g. blue, pink, orange, green, yellow or brown) are the most valuable. All other diamonds are graded according to how noticeable the colour is. The GIA Colour Scale begins with the letter D (colourless) and continues through to Z (yellow). A master set of diamonds is used by gemologists to compare colours.

4. CUT
This is the one characteristic of a diamond where man has more influence than nature. A diamond’s beauty depends on how light strikes its surface, how much light enters the diamond and how, and in what form, it returns to the eye. The GIA Diamond Cut Grading System assesses a diamond’s overall face-up appearance using sophisticated computer modelling to predict brightness, fire and scintillation together with other features such as weight ratio, durability, polish and symmetry. The round brilliant cut diamond is the most popular cut but shapes vary depending on the stone and the skill of the cutter.

And occasionally...

AnchorCert® certification means that a team of expert gemologists have examined and graded the diamond according to the international standards described above. AnchorCert® adds value to a diamond by providing an accurate and unbiased testament to its quality.