Month: November 2017
-
Natural coloured diamonds are some of the rarest and most beautiful diamonds that you can imagine. Mined at a number of varieties across the world, including South Africa and Australia, coloured diamonds are prized by collectors and are sold for 10’s of thousands of dollars per carat. Coloured diamonds are increasing in popularity and as…
-
For many engagement ring buyers, the preferred diamond colour is white – indeed, the whiter, the better (and the pricier!). A pure white diamond, often known as blue-white and graded colour ‘D’ is exceptionally hard to come by and these stones demand premium prices. As you move down the diamond colour scale (and down the…
-
Earlier this year, at Christie’s Hong Kong Magnificent Jewels auction, a remarkable natural green diamond, the Aurora Green, sold for $16.8million. This 5.03ct fancy vivid green of VS clarity set two new diamond records when it was purchased by Chinese retailer Chow Tai Fook. Given that natural green diamonds are exceptionally rare, very little is…
-
For over 100 years, the Cullinan diamond has been the worlds biggest diamond ever found (a whopping 3,106cts), with the second biggest diamond ever being the Excelsior diamond, found in South Africa in 1893. Weighing in at 995cts, the Excelsior was ultimately cut into 10 diamonds, ranging in size from 13 – 68cts. Now, in a…
-
You’ve got it all figured out. You’ve found the woman of your dreams. You’ve asked her parents for permission to propose and now you’re ready to pop the question. You know she’ll say yes. But there’s one thing missing – the perfect engagement ring. You’ve been into every retail jewellery store you know, in every…
-
Everything You Need to Know About Synthetic and Simulant Diamonds
-
In 1919, a Belgian mathematician, Marcel Tolkowsky, who came from a family of diamond cutters, published a Masters thesis on the best proportions for round brilliant diamonds. This work formed the basis of the defining proportions for what are now known as “Ideal cut diamonds”. It must be noted however that different grading laboratories allocate…
-
Titanium rings have grown tremendously in popularity over the past few years. For the 10 years that Katannuta Diamonds has been manufacturing wedding rings for men in South Africa, titanium has been by far the most popular choice for men’s wedding bands. Why is that? There are a number of reasons, but here are the…
-
The following article was written by Wayne Skews, one of the top titanium ring manufacturers in South Africa: “A common misconception is that titanium cannot be cut off of your finger if you are in an accident. This is absolute nonsense! A customer of mine says he tried to buy a titanium ring from Browns…
-
If you had to ask most people to name a green gemstone, emerald would probably be the first gem that comes to mind. Some may mention tourmaline, some may even mention peridot. Very few, however, would name “Tsavorite”, a great pity as it ranks as one of the most spectacular green gemstones around. Tsavorite is…