Rapaport TradeWire June 18, 2026

June 18, 2026

Rapaport Market Comment - June 18, 2026 Market steady. Strong US demand for 2 ct. and larger, G-I, VS-SI diamonds in rounds and long fancies. 1.50 to 1.99 ct. improving. Marquises and antique cuts selling at high prices. Prices continue to recover in round, 0.30 to 0.89 ct. collection goods. Rough prices firm in 5 ct. and above. GIA to launch cut grade for marquises, ovals and pears, add fluorescence comments to reports. Signet estimates natural diamonds accounting for 70% of overall engagement-market revenue, 90%+ of $5,000+ range. Rectangular modified brilliant, 10.02-carat, fancy-intense-blue, VS2 diamond sells for $9M ($864,271/ct.) at Sotheby’s NY. Watch Rapaport JCK Breakfast recording here. Read More

RAPAPORT TRADE DIAMOND INDEX (RAPI™)   Weekly Monthly Y2Y 0.30 ct 0.27% 1.75% -26.49% 0.50ct 0.32% 1.04% -27.72% 1.00 ct -0.39% -0.55% -15.47% 2.00 ct -0.24% -0.58% -6.04% 3.00 ct 0.06% -0.43% -2.32%

Market Reports   United States: Fancy yellows and intense yellows in demand, particularly in long cushions, radiants and ovals, driven by big-brand advertising…   Belgium: Trading quiet overall, though activity is picking up and sentiment has improved slightly…   Israel: Security situation continues to affect market…   India: Manufacturers facing pressure from rising rough prices and limited availability; polished inventories tightening in select categories, especially 2 ct. and larger…   Hong Kong: Dealers preparing for Jewellery & Gem Asia Hong Kong show (June 18-21)…

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WATCH: Rapaport Breakfast @JCK Watch the full recording of the Rapaport State of the Industry Breakfast at JCK Las Vegas 2026.   Watch Here

GIA to Launch Cut Grade for Select Fancy Shapes in 2027 By Joshua Freedman Lab also rolling out new comments clarifying impact of fluorescence. Read More

US Retail Sales Continue to Improve in May Revenue up 0.9% from previous month to $763.7 billion. See More Reinvigorated Hong Kong Demand Boosts Chow Tai Fook Revenue Full-year sales up 5%. See More 10ct. Blue Diamond Scores $8.7M at Sotheby’s Unmounted stone beats $6 million top estimate in New York. See More Workers’ Union Condemns Petra over Finsch Mine Closure Criticism comes after company places deposit under business rescue and states it will lay off workers. See More Mountain Province Sells $5M in Rough at a Discount to Continue Operations Move follows similar transaction in May for $999,000 worth of diamonds. See More SSEF Warns Trade Emeralds Being Treated After Testing Some gems are seeing fillers removed and then restored without disclosure on lab certificates. See More Swiss Watch Exports See Revival in May Shipments up 0.4% year on year. See More Community for Ethical Jewelry Names New Executive Director Marianna Smirnova brings almost two decades of experience to the role. See More 10ct. Harry Winston Diamond Ring to Headline Christie’s Auction Jewel has a $347,000 upper price tag at Joaillerie Paris sale. See More Boucheron Tiara Beats High Estimate at Bonhams Jewel, centering 3.60-carat diamond, fetches $681,600 in London. See More Christie’s Important Watches Auction Garners $17.1M Patek Philippe red-dot timepiece sails past high estimate to fetch $2.8 million in New York. See More

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