Lab also rolling out new comments clarifying impact of fluorescence.
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Bonas will offer over 900 lots from Botswana, Canada, Lesotho, Angola and more.
First-half sales fall 30% year on year amid slump in China and rising popularity of lab-grown.
SMG Capital purchases iconic design label.
Miner sold Seriti diamond in second quarter for an initial value of $12 million.
Productivity will quadruple to 300 tonnes of kimberlite ore per hour, miner says.
Hit comes amid lower overall prices and fewer goods on offer.
The market yearned for clarity. It got more uncertainty at a higher price.
Jeweler expects full-year revenue to grow 2.5% to 4% versus its previous 1% to 3% prediction.
The untreated vibrant gems originate in central Tanzania.
Market Comment: August 7, 2025