Re-Ment has revealed the Pokémon Gemstone Collection and they will be available at Toy and general merchandise stores, supermarkets, some Pokémon Center and Pokémon Store locations and at the Pokémon Center Online. Pictures of the products have been added to an Imageboard thread.

Product Description:

Here comes Pokémon figures with sparkling stones! The combination of the Pokémon and the sparkling stones is very beautiful and is great for a stylish interior!

Product Details:

Re-Ment - Pokémon Gemstone Collection
Price: 935 yen each (850 yen without tax)
Release Date: June 14, 2021
Included: Figure + Gum (1 piece)
Box: 115 (H) x 70 (W) x 70 (D) mm
Available: June 14th, 2021

Sources: https://www.re-ment.co.jp/product/r20601 and https://www.pokemon.co.jp/goods/2021/06/210611_to03.html