noun, noun which may take the genitive case particle 'no'
the pick; the choice; carefully selected
Refers to something or someone chosen as the best among many, often with a nuance of careful, individual selection. Commonly used in phrases like 粒選りの (choice, select) or 粒選りする (to hand-pick).
この店の果物は粒選りだ。
The fruit at this shop is the pick of the crop.
粒選りの選手が集まった。
The cream of the crop of athletes gathered.
選りすぐり also means 'the best of the best' but emphasizes a more rigorous selection process, often used for elite groups or top-quality items. 粒選り has a slightly more literal, granular nuance of picking one by one.
精選 is a more formal, often written term for 'careful selection', used in contexts like curated collections or refined products. 粒選り is more colloquial and vivid.
Compound of 粒 (tsubu, 'grain') and 選り (yori, 'selecting', from 選る). The image is of picking out the best grains one by one, hence 'the pick' or 'the choice'.