How To Buy A Round Brilliant Cut Stone - Eclat by Oui

How To Buy A Round Brilliant Cut Stone

Posted by Dionne Ong on

A timeless and classic cut, the Round Brilliance is the perfect choice for an engagement ring or necklace. The Round Brilliance boasts 58 facets allowing brilliant white light reflection - its signature aspect. The initial interest in this cut was spearhead by Marcel Tolkowsky in his work ‘Diamond Design: A Study of the Reflection and Refraction of Light in Diamond’ published in 1919. However, the cut is still relevant to this day with many falling in love with the brilliance of its sparkle. The fact that most Round Brilliance stones tend to appear larger than they are is another reason for its popularity. Choosing the perfect round cut diamond may seem like a difficult task but with this little guide, you’ll know exactly what you need to look out for.


Since Round Brilliance reflect more light than any other cut, colour could be less of a factor when picking your stone. The number of facets present in a Round Brilliance Stone result in the slight concealment of colour. Therefore, the colour of the stone is something that should be taken into consideration but not overly-emphasized as it becomes indistinguishable to the naked eye. With that being said, at Eclat by Oui we provide our customers with the best grade of all aspects available.


When buying a Round Brilliance cut simulant, or any cut for that matter, it is essential that the stone is flawless to the eye. What makes the jewellery different at Eclat by Oui is that our diamond simulants are inspected by our skilled crafters to ensure that they are of the highest clarity level and blemish free.

Old European Cut vs Modern Round Brilliance

Traditionally, before the invention of the Round Brilliance, the popular round cut was the Old European cut. Generally, these cut of stone had a smaller table, heavier crown and deeper proportions compared to the Round Brilliant. Subsequently, the focus of this cut was to accentuate the colour of the stone and not to emphasize on the brilliance of the shine. Picking between the traditional Old European Cut and the Modern Round Brilliance is entirely dependent on which element of a stone is more desirable to you.

It is easy to be overwhelmed when buying jewellery and to take for granted that the sales assistant has your best interest at heart. However, with this guide, it is clear that the 3 key aspects to keep in mind when buying a Round Brilliance cut stone are colour, clarity and style. Take the time to browse through the collection of Round Brilliance simulant jewellery we have to offer at Eclat by Oui and indulge yourself. We are certain that you’ll be pleased with the quality of our products.

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