The Ricoh GR-21 is a 35mm compact film camera fitted with an ultra-wide 21mm fixed lens, extending the GR series into the super-wide-angle category. It was a niche premium compact aimed at photographers who wanted GR-series build and handling with a markedly wider field of view than the standard 28mm GR1.

Auction data for the GR-21 is thin: a single recent UK saleroom result in November 2025 saw an example sell for £1,375 at hammer (wholesale level, before buyer's premium). On that limited evidence, the GR-21 today is worth substantially more than a standard GR1, reflecting its scarcity, but a single data point means the price a given example sells for can vary widely with condition and completeness.