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What You Need to Know About Round Cut Diamonds



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  • Round diamonds are the most popular diamond shape.
  • Manufacturers are aware of that, so it’s the shape they make the most. You’ll have a lot of choices.
  • A lot of research has been done on round diamonds, so you’ll easily find tips on how to choose cut, clarity, and color.
  • You can go lower on the color and clarity grade because rounds are great at hiding color hints and small inclusions. Just make sure to look at where the inclusions are located.
  • Now dimensions; acceptable ranges would be from 54%-60% for the table, and 59%-63% for the depth.
  • Due to the much higher demand, round diamonds are usually more expensive than their fancy-cut cousins.

Learn more about round cut diamonds.

Dr. Rian Mulcahy
Rian is officially a Diamond PhD - just ping us if you’d like to read her fascinating 200-page thesis, titled Facets of Value: An Investigation into the Formation of Worth in the Diamond Market. She has consulted various firms all along the pipeline, from the rough diamond market to the recycled diamond industry. She holds an MA in Globalisation and Development from University College Cork and a PhD in the Sociology of Diamond Valuation from the London School of Economics.