John Pye auction house has announced it is expecting an online bidding war from overseas investors when one of the UK’s largest collections of rare gemstones is auctioned on the international market next month.

John Pye Luxury Assets has received expressions of interest from India, China, Russia and the USA for the 700-piece collection of rare and precious gemstones valued at £8 million.

Ethically-sourced from mines around the world, all the gemstones within The David Jerome collection come fully certified and are expected to significantly increase in value as mines deplete.


The collection is made up of amethysts, aquamarines, chrysoberyl, diamonds, emeralds, kunzite, kyanite, morganite, opal, sapphires, spinal, rubellites, rubies, spinel tanzanites, topaz and zultanites with an estimated retail value of £8 million.

Ian Hall, expert valuer from John Pye Luxury Assets, explains: “We already know that investors from overseas are interested in bidding for The David Jerome collection; we have received expressions of interest from all over the world for the auctions which will take place in three parts during November and December.”

Hall adds: “Two of the collection’s signature pieces we are expecting particular interest in is a 16.75 carat tanzanite ring set in white gold with diamonds, estimated to reach £38,000 to £42,000 and a pair of 35 carat oval cut emerald earrings set in white gold. Sourced from Zambia, the earrings are expected to sell for up to £600,000.”

In addition to an online catalogue with images and video content, interested bidders are encouraged to attend viewing sessions at the auctioneers’ premises in London (Old Bond Street), Marchington and Nottingham.

Coloured gemstones have been rapidly growing in popularity and these rising asset values are being reflected in auction rooms globally, with a world record realisation set this spring for a ruby sold at auction in Geneva for £19.4 million.

Sheldon Miller, director at John Pye Auctions said he wasn’t surprised so many overseas investors were interested in this once in the life time opportunity to buy some of the world’s rarest stones.

“We are presenting auction buyers with a unique opportunity to acquire the finest natural grade gems at investment grade so we anticipate a mix of private buyers and jewellers are likely to be major players when the online bidding starts. We are still taking registration of interest for prospective bidders as the online auctions take place in three parts throughout November and December.”

Almost all pure and untreated the gemstones have been individually designed and set into one off pieces of jewellery, in white gold or platinum, and encrusted with diamonds. No one piece is the same.

The auctions are set to take place on Nov  6-13, Nov 20-27, and Dec 4-11.