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- Unseen Imperial Russian Jewels for Sale
on 2 June 2026 at 1:00 pmRare Imperial Russian jewels, including Catherine the Great's diamonds, and a Faberge necklace from the reign of Nicholas II, are to be offered for sale by Sotheby's New York. "It is difficult to overstate their rarity and historical importance," said the...
- 31.77-ct Paraiba Tourmaline could Fetch $650,000on 1 June 2026 at 4:00 am
A 31.77‑carat Paraiba tourmaline will be offered for sale with an estimate of $550,000 to $650,000 at Phillips New York. It is one of the "newest" gemstones. Tourmaline was recognized as a distinct mineral species back in the mid-1700s but Paraiba tourmaline...
- Signet Buys The Clear Cut to Boost Blue Nileon 31 May 2026 at 6:00 am
ignet has bought The Clear Cut, a high-end, online-only retailer for an undisclosed sum, and will integrate it into its Blue Nile brand. It's part of Signet's "Grow Brand Love" turnaround strategy, unveiled by CEO J.K. Symancyk in March 2025, aimed at ...
- GIA Buys 30% Stake in Tracron 31 May 2026 at 12:00 am
GIA is to buy a 30% share of Tracr, the blockchain-based traceability platform developed by De Beers. The deal, for an undisclosed sum, is likely designed to expand Tracr's reach beyond De Beers stones so it can evolve across the industry. For GIA it reinforces....
- African Producers: Use 4Cs Only for Natural Stoneson 28 May 2026 at 4:00 am
African diamond producers are calling for lab growns to be measured in grams rather than carats, and for 4Cs grading to be reserved only for natural stones. The African Diamond Producers Association (ADPA) announced the move on Monday (25 May) ...