RAPAPORT… De Beers increased prices of goods above 2 carats at this week’s sight as shortages of rough coincided with strong polished demand.
Prices rose around 5%, and more in some categories, market insiders told Rapaport News on Monday. Near-gem items also saw significant increases, while prices for other stones under 2 carats were either stable or slightly up.
“They seem to have picked areas where they’ve seen room [for price growth], and they’ve just hiked the prices up,” a source in the rough sector said on condition of anonymity. “For the time being, the market is absorbing it.”
Rough trading has been strong in recent weeks because of reduced supply from the large miners and solid polished sales. The RapNet Diamond Index (RAPI™) for 1-carat diamonds has risen 2.5% since May 1.
Rough above 1 carat has been especially sought-after, with premiums on the secondary market rising while manufacturers look to fill inventory gaps. A backlog of grading submissions at the Gemological Institute of America (GIA) has exacerbated the situation.
The June sight value will be similar to last month’s $380 million as customers snap up the limited goods available at the sale, sources said. Proceeds were higher earlier in the year — peaking at $663 million in January — when manufacturers restocked after the holidays and De Beers had larger volumes available to sell.
“There’s a shortfall in goods,” an executive at an Indian sightholder said Monday. “They’re not able to serve everyone what they’re entitled to.”
Rough demand slumped during the 2020 coronavirus crisis as the global supply chain froze. De Beers chose to maintain prices until August, when it offered deep discounts to encourage sightholders to resume buying. It has since reversed those cuts, gradually bringing prices to above pre-pandemic levels in many categories.
The sight began on Monday and runs until Friday. De Beers was not available for comment at press time.
Image: Rough diamonds on display at De Beers’ offices in Calgary, Canada. (Ben Perry/Armoury Films/De Beers)
De Beers Raises Prices of Larger Diamonds
The Bottom Line
- De Beers increased prices by around 5% or more for diamonds above 2 carats at the latest sight.
- Demand for rough diamonds over 1 carat remains strong, with premiums rising on the secondary market due to limited supply and GIA grading delays.
- The June sight value is expected to hold near $380 million, down from a peak of $663 million in January, reflecting constrained inventory and selective price hikes.
Summary by Rapaport AI
More Stories

US Holiday-Spending Growth to Outpace Last Year’s – Bain
Consumer outlay is likely to rise 4.5%, a slightly higher increase than in previous seasons.

London Diamond Bourse Touts ‘Synthetic Diamond’ Terminology
Exchange encourages UK trade to use term for grown stones, saying it is more accurate and internationally accepted.

Ruby and Diamond Earrings to Headline Sotheby’s Hong Kong Auction
Lot will be on offer for $2.6 million at High Jewelry sale.
