Diamonds were discovered in South Africa by a child playing with brightly coloured stones by a river in 1866. One of the stones was recognised to be a diamond and the gem cut from it was appropriately named “Eureka”. This created a massive diamond rush and the start of a new beginning for diamonds. Diamonds mined in South Africa still continue to make up a large percentage of the world’s diamond jewellery, though there are gem quality diamonds that are being discovered all the time in other countries around the world.
More recently, Australia has become a contender when it comes to the production and mining of exquisite gem quality diamonds. Other countries for diamond mining include Africa, Canada, Russia, and South America in addition to those mined in Australia.
Before you consider buying a diamond, it is important to understand the four “C’s”. They are excellent indicators of the value of the diamond. For those who are not familiar with the four C’s of diamonds they are: colour, clarity, cut, and carats. You will want to consider each of these when selecting a diamond to make sure your investment will stand the test of time and hopefully become more valuable over the years.
Moreover, the diamond saw allows diamonds to be salvaged from misshaped diamond rough. Sawing is a more expensive process than cleaving, as it requires about one-tenth of a carat of diamond dust (applied to the saw with oil) for every carat of sawed diamond. It is also a much slower process than the single-stroke process of cleaving. It may take days to saw through a two-carat diamond. Extant methods include the use of lasers to saw through diamonds.
Oval cut The Oval cut is elliptical in shape and is a variation of the round brilliant cut diamond. The oval shaped diamond gives a flattering illusion of length to the finger and hand, and is popular among women with small hands or short fingers. It can also accentuate long, slender fingers. Length to width ratio Length to width ratio An oval cut with a length to width ratio of approximately 1.40 – 1.60 (the average of 1.50 is shown in blue) is the preference of most diamond buyers. For those who prefer a rounder look, choose a ratio closer to 1.15:1. For those who prefer a more elongated shape, look for a ratio of 1.70:1
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