Notification of Full Year 2025 Results

4 March 2026

GEM DIAMONDS LIMITED

("Gem Diamonds" or "the Company")

Notification of Full Year 2025 Results

Gem Diamonds Limited (LSE: GEMD) will be releasing its Full Year Results for the period ended 31 December 2025 on Wednesday, 18 March 2026.

The Company will be hosting an audio presentation on Wednesday, 18 March 2026 at 09:30 GMT. A live audio webcast of the presentation will be available on the Company's website: www.gemdiamonds.com.

The Gem Diamonds Limited LEI number is 213800RC2PGGMZQG8L67.

For further information:

Gem Diamonds

Kiki Constantopoulos, Company Secretary

[email protected]

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.

www.gemdiamonds.com