Indeed, pink diamonds are so rare, they can fetch more than $2 million (around £1.58 million) per carat. For context, a carat is equal to 0.2 grams or 0.007 ounces, according to the International ...

“Argyle pink tender diamonds have outperformed all major equity markets over the past two decades, achieving double-digit price growth in that time,” points out Patrick Coppens, general ...