Sizing an oval bangle

Dear Orchideans

Yet another question for the clever folk out there.

Are there any particular rules for measuring a wrist for an oval
bangle (with opening) which has an amorphous shape (that is… a few
ups and downs across the top of the wrist). This one is a very chunky
piece with three wavey “tendrils” with 3 fat pearls attached. We
thought we’d worked out the wrist size OK but it has turned out way
too big. She has since given me a bangle which is about 3 cm smaller
inside diameter (18.3 cm). The original measurements were 18 cm but
being a bit plump the prototype I made just got lost on her wrist
although it was just possible to close it around the wrist.

An additional problem is that she lives in a different state and our
communications are via email.

I think this might be a tricky problem for anyone to answer but if
anyone has any clues as to what I’m talking about and a possible
cunning solution, I’d be over the moon to hear it.

Regards and respect, Renate

I’m confused

an oval bangle (with opening) but it has turned out way too big
got lost on her wrist although it was just possible to close it
around the wrist. 

Is this a CUFF bracelet? Hinged? If its way too big how does it just
close around the wrist (how does a cuff close)?

What you need is some sort of stand-in for her wrist. Have her
measure her wrist with a sewing tape. Then find or make a mandrel or
borrow somebody’s same sized wrist. I’m sure we can help you more
once we’re clear what the piece is. Pics always help.