Responsible business practices ‘no longer optional’, says WDC President Feriel Zerouki

The president of the World Diamond Council takes time out of her busy schedule to tell Rough&Polished readers about the critical work of the WDC. Zerouki, the first female present of the body, which includes all the important industry organizations among...

14 october 2024

James Campbell: Botswana Diamonds optimistic as it enters uncharted territory of using AI for mineral exploration

London-listed Botswana Diamonds has expressed optimism about the company’s use of artificial intelligence (AI) to scan the exploration database in Botswana to look for new mineralised deposits. Company managing director James Campbell told Rough...

07 october 2024

Artur Salyakayev: For me, happiness is freedom to make my ideas happen and create valuable products

Artur Salyakayev is an art entrepreneur, founder of the International Jewelry Academy (IJA) and the INCRUA jewelry company. He has initiated and developed successful projects in jewelry industry and services sector. He is also a leading expert...

30 september 2024

Paul Zimnisky: China key for sustained recovery in demand for natural diamonds, prices

The curtailing of upstream and midstream natural diamond production in the past months is starting to have an effect on prices, according to the New-York-based independent diamond and jewellery analyst and consultant, Paul Zimnisky. He told Rough & Polished’s...

23 september 2024

Vladimir Pilyushin: The jewelry market is not stand-alone and moves by the same laws as other markets

Vladimir Pilyushin is editor-in-chief of Russian Jeweler, a leading magazine about the jewelry industry in Russia. He told Rough&Polished about his view on the evolution of the jewelry industry in Russia and touched upon some of its problems.

16 september 2024

118.35-carat royal blue sapphire to be sold this month by Phillips Hong Kong

09 may 2023

Image credit: Phillips Hong Kong

A 118.35-carat royal blue sapphire was set into a necklace by Bulgari in 2004 as part of its High Jewelry Collection. Appearing at an auction for the first time, it is to be sold later this by month by Phillips Hong Kong for an estimate of $4.5m.
According to Phillips, the royal blue sapphire, a Sri Lankan unheated cushion-shaped gem, scored an incredible 98 points in the Gubelin Gemstone Rating for quality, rarity, and salience.
The 118.35-carat royal blue sapphire is among the largest sapphires ever offered at international auctions in the past three decades.
However, larger gems exist including the 486.52-carat Giant of the Orient, the 422.99-carat Logan Blue Sapphire are on display at the Smithsonian Institution's Museum of Natural History, and the 392.52-carat Blue Belle of Asia.

Aruna Gaitonde, Editor in Chief of the Asian Bureau, Rough&Polished