For generic, round, near-colorless diamond with VS clarity and VG cut grade; Chart: Axios Visuals 'Tis the season to put a ring on it — and thanks to lab-grown diamonds, those rings are bigger and ...

Representative Image Diamonds are a symbol of love, luxury, and timeless beauty. When it comes to selecting the perfect diamond, the “Four Cs”–Colour, Cut, Clarity, and Carat–serve as the main guide.

It takes intense pressure and temperatures north of 2,000 degrees for a diamond to form deep within the Earth. But these days, there’s another way to create a diamond: in a lab, where a diamond can go ...

In a landmark move, the Gemological Institute of America (GIA) announced that by the end of 2025, it will no longer evaluate lab-grown diamonds (LGD) using the iconic 4Cs: cut, color, clarity, and ...

Two samples of carbon crystals, which are clear and give off a kaleidoscope of spectral colours under direct sunlight, may appear to be identical. However, one is a billion years old, and the other is ...

Roula Khalaf, Editor of the FT, selects her favourite stories in this weekly newsletter. Next month, the Gemological Institute of America (GIA) will change the way it grades laboratory-grown diamonds, ...