NewsBrief February 15, 2024 A Colorful Life: Leibish Shares the Many Hues of His 40-Year Diamond Career Leibish Polnauer discusses his professional journey with Rapaport’s editorial team, from a fluke that helped him launch his business to spending two years sourcing yellow stones for a Jacob & Co. watch. Why Not All Lab-Grown Is Sustainable, and This Week’s Other News Members of the editorial team pick their favorite pieces from the internet. Heritage Auctions Appoints New Jewelry Executive Gina D’Onofrio will return to company as codirector of division. Canadian Miner Brings On Diamond Specialist Nelson Karun will provide Star Diamond with info on rough sorting and valuation. Trending Stories Cricket Bat-Shaped Diamond Submitted to GIA for Testing Sotheby’s Scores over $6M at Hong Kong Jewelry Auction Rio Tinto Facing Charges over Safety at Diavik Events Rapaport Single Stone Auction February 7-19 New York & Israel More Details Rapaport Melee Auction February 13-22 New York & Dubai More Details Rapaport Single Stone Auction February 28 – March 6 New York & Israel More Details RapNet Diamond Index (RAPI™) Diamond Data Size Index Weekly Monthly Y2Y  0.30 ct 1,429 0.36% 0.56% -8.22%  0.50 ct 2,052 0.80% 1.81% -23.32%  1.00 ct 6,065 0.37% 0.61% -18.60%  3.00 ct 22,156 0.33% 0.60% -10.64% Rapaport Investment Grade Diamonds

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