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World's largest cut diamond carved from mysterious stone harder than regular gems

A mysterious black diamond stumped experts for years until one Belgian cutter invented a new machine to shape the 612-carat ...

Top Bridge Saw Manufacturers: Driving Innovation in Stone Processing Technology

TAIZHOU, ZHEJIANG, CHINA, January 20, 2026 /EINPresswire.com/ -- The global stone processing industry is undergoing a ...