From Gwen Stefani's $500,000 sparkler to Mariah Carey's 35-carat emerald-cut diamond, here are the most expensive celebrity ...

In September a cushion-shaped 5.44-carat Paraiba tourmaline ring flew past its US$60,000 upper estimate in auction at Bonhams ...

Amanda Holden got quite the Christmas gift from husband Chris Hughes, who reportedly upgraded her engagement ring to one ...

Our research team assigns Silver ratings to strategies that they have a high conviction will outperform the relevant index, or most peers, over a market cycle on a risk-adjusted basis. The manager ...

Zendaya's east-west diamond engagement ring from Tom Holland to be from London jeweler Jessica McCormack. Here's all we know about the sparkler.

The Price to Earnings (P/E) ratio, a key valuation measure, is calculated by dividing the stock's most recent closing price by the sum of the diluted earnings per share from continuing operations ...

Colored diamonds and gemstones along with a few ... All the top lots that did sell fetched prices within estimates. However, several important pieces among the 145 lots did not find buyers.

According to a new report by McKinsey & Company, the diamond industry could see diamond prices stabilise in the coming years ...

India's average diamond imports over 10 years amounted to $15 billion, and in 2024 they totaled $12 billion, while this year diamond prices fell to $125 per carat, according to Tolstykh's presentation ...

Boaz Wade, VP Exploration, stated “Some encouraging drilling intercepts, which included zones of visible gold, confirm that high grade mineralization occurs down-plunge of the existing OMZ resource.

It was bought for $4.8m, exceeding its high estimate of 2.2m Swiss Francs ... over twice its estimated price; and a diamond and pearl pendant auctioned in November 2018 by Sotheby's in Geneva ...