Advanced Search

Diamond Prices Soften Ahead of Hong Kong Fair

1 ct. RAPI -0.5% in August

Sep 4, 2018 5:02 AM   By Rapaport
Comment Comment Email Email Print Print Facebook Facebook Twitter Twitter Share Share
RAPAPORT PRESS RELEASE, September 4, 2018, New York… Diamond prices dropped slightly in August due to slow trading during the summer vacation. The RapNet Diamond Index (RAPI™) for 1-carat diamonds fell 0.5% during the month — typically a quieter period, as bourses in Belgium and Israel close for business.

After a strong first half, the 1-carat RAPI index was 2.5% higher than in the beginning of 2018 and increased 1% in the 12 months that ended September 1.

RapNet Diamond Index (RAPI™)
August Year to date* Year on year**
RAPI 0.30 ct. -0.9% 7.4% 6.7%
RAPI 0.50 ct. -0.1% 5.7% 2.0%
RAPI 1 ct. -0.5% 2.5% 1.0%
RAPI 3 ct. 0.2% -0.1% 0.9%
© Copyright 2018, Rapaport USA Inc.
*January 1, 2018 to September 1, 2018. **September 1, 2017, to September 1, 2018.

Dealers were conservative during August while preparing for the Hong Kong Jewellery & Gem Fair, which begins September 12.

Expectations for the show are mixed, with suppliers hoping to assess prospects for the Far East market amid US-China trade tensions and the weaker yuan. Hong Kong-based jewelers, having reported strong growth in the first six months, are more cautious about the second half of the year, and that may impact spending at the show.

Indian dealers and cutters are concerned about reduced bank credit since the alleged $2 billion Nirav Modi bank fraud, as well as the devaluation of the rupee, which hit a record low of INR 70.80/$1 on September 3.

Demand has slowed for smaller and lower-value diamonds due to caution in India and China. Cutters have shifted away from melee, focusing on under-the-carat GIA dossiers. There is good demand for nice SIs, which are difficult to find.

The US market is stable, with retailers optimistic for the holiday season. Sentiment improved after Signet Jewelers and Tiffany & Co. reported positive earnings in the second quarter and department stores Macy’s and J.C. Penney noted good jewelry sales.

While both the US and China have stimulated growth so far in 2018, we expect US demand will support the diamond trade in the remaining months; Chinese tourist spending is likely to slow during the October 1 Golden Week retail season, given the currency depreciation.

Rapaport Media Contacts:
US: Sherri Hendricks +1-702-893-9400
International: Alex Shine +1-718-878-5138
Mumbai: Prashant Bhojani +91-97694-66855

About the Rapaport RapNet Diamond Index (RAPI™): The RAPI is the average asking price in hundred $/ct. of the 10% best-priced diamonds, for each of the top 25 quality round diamonds (D-H, IF-VS2, GIA-graded, RapSpec-A3 and better) offered for sale on RapNet – Rapaport Diamond Trading Network. has daily listings of approximately 1.6 million diamonds valued at approximately $7.4 billion. Additional information is available at

About the Rapaport Group: The Rapaport Group is an international network of companies providing added-value services that support the development of ethical, transparent, competitive and efficient diamond and jewelry markets. Established in 1976, the Group has more than 20,000 clients in over 121 countries. Group activities include Rapaport Information Services, providing the Rapaport benchmark Price List for diamonds, as well as research, analysis and news; RapNet – the world’s largest diamond trading network, with over 15,000 members in 97 countries and daily listings of approximately 1.6 million diamonds valued at approximately $7.4 billion; Rapaport Laboratory Services, providing GIA and Rapaport gemological services in India, Israel and Belgium; and Rapaport Trading and Auction Services, the world’s largest recycler of diamonds, selling over 500,000 carats of diamonds a year. Additional information is available at

Image: Shutterstock

Comment Comment Email Email Print Print Facebook Facebook Twitter Twitter Share Share
Tags: diamonds, J.C. Penney, Jewelry, macy's, Rapaport, RAPI, RapNet, Signet Jewelers, Tiffany & CO.
Similar Articles
Comments: (0)  Add comment Add Comment
Arrange Comments Last to First
© Copyright 1978-2021 by Rapaport USA Inc. All rights reserved. Index®, RapNet®, Rapaport®, PriceGrid™, Diamonds.Net™, and JNS®; are registered TradeMarks.
While the information presented is from sources we believe reliable, we do not guarantee the accuracy or validity of any information presented by Rapaport or the views expressed by users of our internet service.