Notification of Q4 2023 Trading Update

24 January 2024

GEM DIAMONDS LIMITED

("Gem Diamonds" or "the Company")

Notification of Q4 2023 Trading Update

Gem Diamonds Limited (LSE: GEMD) will be releasing a Trading Update for the period 1 October 2023 to 31 December 2023 on 1 February 2024.

The Gem Diamonds Limited LEI number is 213800RC2PGGMZQG8L67.

For further information:

Gem Diamonds

Kiki Constantopoulos, Company Secretary

ir@gemdiamonds.com

Celicourt Communications

Mark Antelme/Felicity Winkles

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.

www.gemdiamonds.com