David Benderly: PermaScribe seeks to put trust mark on diamond table, not just girdle

In this interview with Rough & Polished’s Mathew Nyaungwa, PhotoScribe Technologies president and chief executive David Benderly explains how PermaScribe differs technically from conventional laser inscription, its potential to strengthen security, and...

31 august 2026

The great reset: Paul Zimnisky on supply catharsis, De Beers' bargain and the case for natural diamonds

The natural diamond industry is in the throes of its most profound reset in a generation. Supply is plunging to its lowest level since 1987 and De Beers—once valued at over $9 billion—is reportedly being sold for as little as $1 billion.
Lab-grown...

10 august 2026

Roman Karakurkchi: Maintaining the highest standards of jewelry craftsmanship

Roman Karakurkchi is the founder of the Roman Karakurkchi jewelry brand and the International Jewellery School that brings together instructors from Russia, the USA, the Netherlands, Spain, Belgium, Italy, and Germany, as well as students from 65 countries...

03 august 2026

Mehul Shah pledges to bring new approach to leading WFDB

Mehul N. Shah, who was elected in July as President of the World Federation of Diamond Bourses at the 41st World Diamond Congress in Singapore, is one of India's best-known diamantaires and a prominent leader in the international diamond industry...

27 july 2026

Charlotte Rose on making history, modernising the London Diamond Bourse, and why finance is the industry’s silent crisis

When Charlotte Rose was elected president of the London Diamond Bourse in June 2026, she didn't just break an 86-year tradition—she became the first woman to lead any diamond bourse globally. In an exclusive interview with Rough & Polished’s Mathew...

20 july 2026

Sotheby’s to accept cryptocurrency at September 24 Hong Kong auction

13 september 2021
Sotheby’s Hong Kong announced last week that it will extend the cryptocurrency option to buyers at the ‘Diamonds: The Dazzle’ sale at the 24 September auction.
The move by Sotheby’s comes after an anonymous crypto buyer successfully purchased a 101.38-carat diamond for around $16.4 million in July. The sale took place at the auction house’s inaugural Luxury Edit sale series in Asia in July.
While fiat currency will still be accepted, the auction house is now accepting payment in Ether, Bitcoin or USD Coin. The cryptocurrencies will be facilitated through Coinbase Commerce, one of the world’s largest cryptocurrency exchanges.
The September sale will be led by a 177.51-carat Harry Winston diamond necklace. The live sale is scheduled for Sept 24, while the bidding is open from Sept 7.

Aruna Gaitonde, Editor in Chief of the Asian Bureau, Rough&Polished