Unlike some other jewellery stores, we do not systematically inflate and then discount prices through frequent in-store sales. Compare our prices with other independently certified diamonds and you’ll see just how competitive our prices are.

D, E and F colour diamonds are exceptionally rare and are highly prized and sort after. Often referred to as collection colour diamonds, the D, E and F colour diamonds are classified as colourless diamonds by the Gemological Institute of America's internationally recognised diamond grading system. Each collection colour loose diamond from Gillett's is independently certified to give you the added assurance of its exceptional quality.

Gillett's Jewellers own all of the loose diamonds listed on this web site. They are all available in stock on our premises.

Most other diamond web sites do not own nor physically hold the diamonds that they offer. Some web sites offer diamonds from a central list of thousands of diamonds that are warehoused overseas. Those diamonds however are also listed with hundreds of other jewellers around the world. At other diamond web sites, in addition to possible long delay times, those diamonds may not actually be available for purchase if the same diamond is sold by another jeweller first.

The GIA certificates are from the Gemological Institute of America. The DCLA certificates are from the Diamond Certification Laboratory of Australia.

The DCLA and GIA Diamond Certificates guarantee the authenticity of a diamond and rule out the possibility of it being synthetic or an imitation.

The certificates also contain an authoritative assessment of a diamond's 4Cs - colour, clarity, cut and carat. The certificates description of the diamond includes: a unique ID number, weight, colour grade, clarity grade, shape, measurements, proportions, proportion grade, finish grade, fluorescence, hue and other remarks. These quality characteristics determine the value of the diamond.

All diamonds graded by the DCLA and GIA are checked to ensure they have not been treated and are of natural origin. Therefore the DCLA and GIA Certificates assure the owner that the diamond is free of all known treatments and enhancements. It also confirms the diamond is natural and not a synthetic diamond.

Certificate security features: To prevent counterfeiting the DCLA certificate has various security features including holograms, UV text seal, special paper and embossed foiled crest. All GIA diamond grading reports contain a hologram, security screen and micro-print lines as well as other security features that exceed industry guidelines.

Cold laser inscription is included with some loose diamonds. If laser inscription is included with your diamond, the diamond specifications shown online will include a reference that the diamond has been laser inscribed. Cold laser inscription links the diamond to the certificate providing added confidence. Laser inscription is minute writing, not visible to the naked eye, on the girdle of the diamond. The safest laser is a cold laser system, guaranteed not to damage the diamond, and has no effect on the purity of the diamond.

When you purchase a loose certified diamond from Gillett’s, you’ll receive the original diamond certificate with the diamond.

What is the DCLA?

The Diamond Certification Laboratory of Australia (DCLA) is an independent diamond grading laboratory. More...

What is the GIA?

The Gemological Institute of America is the world's largest and most respected nonprofit institute of gemological research and learning. More...

Why is using an independent laboratory important?

What are conflict diamonds?

In 1998, Global Witness, a non-governmental organisation (NGO), made the world aware that certain rebel movements in Africa were selling, amongst other things, illegally obtained diamonds, known as conflict diamonds, to fund their wars against legitimate and internationally recognised governments.

Gillett’s has a policy of zero-tolerance towards conflict diamonds. Measures such as the Kimberley Process, which tracks diamonds from mine to market, makes it possible for the industry in partnership with the United Nations, governments, and non-governmental organizations to police diamond exports to prevent the trade of illegal diamonds.

Today, over 99% of the world's supply of diamonds is from sources free of conflict as a result of these measures.