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Diamond Prices Soften in May

Rapaport Calls on Industry to Support Diamond Chain of Custody and Social Responsibility Initiatives

Jun 7, 2016 4:06 AM   By Rapaport
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RAPAPORT... PRESS RELEASE, June 7, 2016, New York … Polished diamond prices declined slightly in May with buyers waiting for the Las Vegas shows. Trading at the JCK Las Vegas show, which took place June 3 to 6, was relatively weak with traffic slower than previous years.

The RapNet Diamond Index (RAPI™) for 1-carat, GIA-graded diamonds was flat in May. RAPI for 0.30-carat diamonds fell 1.1 percent and RAPI for 0.50-carat diamonds slid 0.3 percent during the month. RAPI for 3-carat diamonds dropped 1.1 percent. During the first five months of the year, RAPI for 1-carat diamonds rose 1.2 percent but was 4.9 percent below its level from a year ago.

© Copyright 2016, Rapaport USA Inc.

The Rapaport Monthly Report acknowledged that U.S. demand is steady and the country remains the best market for diamond dealers. However, weaker economic trends in a contentious election year is impacting sentiment in the diamond and jewelry trade. 

Polished demand is specific and businesses across the pipeline are working with smaller inventory. Meanwhile, polished production continues to rise and rough diamond demand remains robust. De Beers sold $630 million worth of rough in May and strong ALROSA sales helped the Russia-based company reduce its rough inventory from 22 million recorded at the beginning of the year to less than 18 million carats at the end of the first quarter.

The Las Vegas shows highlighted significant challenges facing the diamond industry in light of the relationship between the rough and polished markets, raising levels of consumer demand, how to sell the idea of diamonds to millennials, rising interest in lab-grown diamonds, and responsible sourcing.

A large crowd attended the annual Rapaport Breakfast at the JCK Las Vegas show, which explored these issues. The Rapaport Town Hall meeting opened a debate about whether lab-grown diamonds have an ethical edge over natural diamonds.

“The diamond industry must establish reliable chain of custody and source certification protocols to ensure that legitimate diamonds from good firms are differentiated from unknown diamonds from questionable sources. The industry must be able to answer the question, where do our diamonds come from?” said Martin Rapaport, Chairman of the Rapaport Group.

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The Rapaport Monthly Report can be purchased at

Rapaport Media Contacts:
U.S.: Sherri Hendricks +1-702-893-9400
International: Gabriella Laster +1-718-521-4976
Mumbai: Manisha Mehta +91-97699-30065

About the Rapaport RapNet Diamond Index (RAPI™): The RAPI is the average asking price in hundred $/ct. of the 10 percent 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 over 1.2 million diamonds valued at approximately $8 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 fair, transparent, competitive and efficient diamond and jewelry markets. Established in 1978, the Rapaport Price List is the primary source of diamond price and market information. Group activities include Rapaport Information Services, Rapaport Magazine, and, providing research, analysis and news; RapNet – the world’s largest diamond trading network; Rapaport Laboratory Services provides GIA gemological services in India, Belgium and Israel; and Rapaport Trading and Auction Services specializing in recycled diamonds and jewelry. The Group supports over 20,000 clients in 121 countries and has offices in New York, Las Vegas, Antwerp, Ramat Gan, Mumbai, Surat, Dubai and Hong Kong. Additional information is available at

Martin Rapaport (Publisher) grants limited permission to use copyrighted data appearing in this press release in and in conjunction with journalistic copy, reporting or articles concerning diamond pricing and information in graph or data presentation format only. The following credit notice must appear alongside, underneath, or in close proximity to any use of the copyrighted data: “Used with permission of Rapaport USA, Inc. Copyright 2016 © Rapaport USA Inc. All rights reserved.”
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Tags: Chain of custody, diamonds, Jewelry, Martin Rapaport, prices, Production, Rapaport, Rapaport News, RAPI, RapNet, social responsibility
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