The diamond trade’s trusted bulletin for pricing, trends and news
Weekly since 1980
September 18, 2025
News:
Hong Kong show meets low expectations, with Chinese buyers not purchasing much. Large and high-value stones in demand. US prices decline for round, 0.50 ct., 0.70 ct. and 1 ct., D-J, SI diamonds. Prices of India-based 2 ct. rounds and fancies increase. US delegation visits India for tariff negotiations. India Aug. gross polished exports -6% YOY to $972M, rough imports +14% to $769M. S&P lowers Botswana credit rating amid decline in diamond revenues. US dealers scramble for old-mine cushion cuts following Taylor Swift engagement. CIBJO proposes removing “laboratory-grown” as synonym for “synthetic” in Blue Book. The Rapaport Group wishes everyone a happy, healthy and peaceful Jewish New Year.
Fancies:
Long fancy shapes such as Oval, Marquise and Emerald doing better than rounds in 2 ct. and larger. High-quality Marquises, long Radiants and long Cushions in short supply. Marquises most expensive fancy shapes. Long Cushions easy to sell and trading at 20% to 25% premium over square ones. Solid US market for elongated Ovals of good shape and quality in D-I, VS-SI categories. US Oval prices 5% to 10% higher than those of Pears. Very well-cut fancy shapes difficult to find and commanding premiums. Fancies with bad proportions illiquid.
Market Comment
The diamond trade’s trusted bulletin for pricing, trends and news
Weekly since 1980
September 18, 2025
News:
Hong Kong show meets low expectations, with Chinese buyers not purchasing much. Large and high-value stones in demand. US prices decline for round, 0.50 ct., 0.70 ct. and 1 ct., D-J, SI diamonds. Prices of India-based 2 ct. rounds and fancies increase. US delegation visits India for tariff negotiations. India Aug. gross polished exports -6% YOY to $972M, rough imports +14% to $769M. S&P lowers Botswana credit rating amid decline in diamond revenues. US dealers scramble for old-mine cushion cuts following Taylor Swift engagement. CIBJO proposes removing “laboratory-grown” as synonym for “synthetic” in Blue Book. The Rapaport Group wishes everyone a happy, healthy and peaceful Jewish New Year.Fancies:
Long fancy shapes such as Oval, Marquise and Emerald doing better than rounds in 2 ct. and larger. High-quality Marquises, long Radiants and long Cushions in short supply. Marquises most expensive fancy shapes. Long Cushions easy to sell and trading at 20% to 25% premium over square ones. Solid US market for elongated Ovals of good shape and quality in D-I, VS-SI categories. US Oval prices 5% to 10% higher than those of Pears. Very well-cut fancy shapes difficult to find and commanding premiums. Fancies with bad proportions illiquid.Previous Market Comments
Market Comment: October 15, 2026
Market Comment: October 8, 2026
Market Comment: October 1, 2026
Market Comment: September 24, 2026
Market Comment: September 17, 2026
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Previous Market Comments
Market Comment: October 15, 2026
Market Comment: October 8, 2026
Market Comment: October 1, 2026
Market Comment: September 24, 2026
Market Comment: September 17, 2026
Market Comment: September 10, 2026