Gem Diamonds Di Regulatory News (GEMD)

14 April 2026

GEM DIAMONDS LIMITED

("Gem Diamonds" or "the Company")

 Block listing application

Gem Diamonds, LSE: GEMD announces that it has made an application to the London Stock Exchange for a block listing of 1,950,000 ordinary shares of $0.01 each in the Company. These shares, when issued pursuant to the Company's obligations under the Gem Diamonds Employee Share Plan 2017, shall rank equally with the existing issued shares of the Company and will be admitted to the Official List and to trading on the main market of The London Stock Exchange. It is expected that admission will become effective on or around 17 April 2026.

The application for the block listing is being made to satisfy options granted under the Gem Diamonds Employee Share Plan 2017.

The Gem Diamonds Limited LEI number is 213800RC2PGGMZQG8L67.

For further information, please contact:

Gem Diamonds LimitedKiki Constantopoulos, Company Secretary

ir@gemdiamonds.com

Celicourt Communications

Mark Antelme/Charles Denley-Myerson

Tel: +44 (0) 207 777 6424

About Gem Diamonds:

Gem Diamonds is a leading global producer of high value diamonds. The Company owns 70% of the Letšeng mine in Lesotho. The Letšeng mine is famous for the production of large, exceptional white diamonds, making it the highest dollar per carat kimberlite diamond mine in the world.