You can find pictures of individual chains on the size charts page, but when you’re trying to choose between sizes for a specific weave, it’s helpful to have a “family portrait” for that weave: a picture of all the good sizes side-by-side so you can see more clearly how they compare.
These family portraits were all photographed on my hand, which is a very medium hand-sized-hand. (I’m a woman, but I’m 5’10” with proportional hands.) I might someday add family portraits on a ruler, but I think it’s easier to choose sizes with a person for comparison, rather than a ruler.
Most of the family portraits that I have are for inch-size rings. The weaves are all listed alphabetically, so just scroll through to find the one you want. Many of the family portraits date from a time when I only offered 21ga through 14ga rings. I’ll be coming back to re-photograph those families with all the members (22ga through 10ga) present, on a nice white background.
This photo album is still pretty empty. I’ve been making millimeter rings since 2006, but I always reach for the inch rings first (I’m a creature of habit!) so the poor millimeter sizes don’t get nearly as much testing as they deserve. Happily, you can “cheat” by looking at the inch family portraits to find a gauge that you like for your weave, and then check the size charts page to see what millimeter ring size to use for that gauge. It’s a clunky workaround, but rest assured that I am working on the real thing.