Useful Information

Treatment of coloured Gems

Gemstones can be treated and enhanced for a more pleasing visual effect, using methods that have existed for centuries. Undetectable and permanent enhancements ensure that there are always beautiful gemstones in the market. If these treatments are stable, the stone’s value increases. Treatments that are less stable should be avoided. It is important that buyers […]Read More »

Enhanced vs Natural Diamonds

Purchasing loose diamonds can be an investment for the future, so it’s best to choose diamonds that will hold their value in the long term. Although you may not be concerned about the resale value of your diamond at the time of purchase, you may be interested in selling your diamond or trading it in […]Read More »

Coloured Diamonds

Champagne Diamonds Champagne and Cognac diamonds are the best coloured diamond buys, at around one third the price of white diamonds. These good prices will not last forever. Prices for colours C1 to C6 are all about the same. Lighter stones are popular because they sparkle a lot and cost less. More intense colours are […]Read More »


Colour plays a major role in determining the quality of a diamond. A diamond acts as a prism, dividing the light into a spectrum of colours and dispersing this light as colourful flashes called Fire. White diamonds, although they appear colourless, can have tinges of yellow and brown. As these tones become more easily apparent, the […]Read More »


The clarity or purity of diamonds is determined according to the effect that inclusions and marks (imperfections inside the diamond) have on the appearance of the stone when viewed face up at 10x magnification. To determine the clarity grade of a diamond, the size, colour, number, location and visibility of any internal inclusions or external […]Read More »

Carat Weight

The weight of a diamond is always expressed in carats (one carat equals 0.2 grams). This is further broken down into points: 100 points equals one carat. Diamond weight is recorded to 2 decimal places in carats, or as the number of points. For example, a half-carat stone can be described as 0.50ct or 50 […]Read More »


The cut (make) of a diamond is a most important feature. Cut is not a reference to the shape of the stone. It refers to the angles and proportions created by the skilled craftsperson while transforming a rough diamond into a polished diamond. A diamond may have the highest colour and clarity, but a poor cut will result […]Read More »

Argyle Diamonds

Pink and Red Diamonds Before Argyle, most pink diamonds were a pastel shade worthy of passing interest, but not lasting passion. This all changed when the first Argyle Pink diamonds were released in 1985. Australia’s Argyle mine in the north of WA produces almost all of the world’s red and pink diamonds. Although it is […]Read More »

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