Large diamonds must be retrieved from among much larger chunks ... Palmieri wrote that the Lesedi could “yield the largest D color faceted and polished diamond known in the world of over 530 ...

An unusually large pink diamond sold for a record-breaking $50 million (about 50.3 million Swiss francs) Tuesday at Christie’s auction house in Geneva.

The Keck family, owners of the Duhme Jewelry Company, purchased the Taylor diamond and had it cut and polished for display in the company’s large store on Fourth Street. From Kenny’s Illustrated ...

In terms of demand for polished diamonds, ... Notably, Lucara Diamond Corp. also recovered two large gem-quality diamonds during the quarter, weighing 1,080 carats and 692 carats respectively.

A 15.81-carat gem, dubbed “The Sakura,” fetched $29.3 million in Hong Kong to become the most expensive purple-pink diamond ever to sell at auction. Named after the Japanese word for cherry ...

Russian miner Alrosa said on Tuesday it plans to sell a rare collection of polished diamonds produced domestically, including a giant 51.38-carat gem, at an online auction in November.

Polished inventory levels increased as Indian manufacturers shipped large volumes before the Diwali break. The country’s polished exports rose 45% year on year to $2.56 billion in October.

Canada's Lucara Diamond Corp , has discovered a 2,492 carat diamond at its Karowe mine in Botswana, the company said late Wednesday, one of the largest stones to be excavated.