Ring Hallmark mystery

[RockCrushesLizard]

I received a lovely ring for Christmas, and was nosing at the hallmarks to find out how old it was, who made it etc.

It's mysterious because:
It's an old cut round diamond in an Art Deco style setting
Maker’s stamp was BHJ, which is a mark that stopped being used in 1929

• this would suggest the 20's

BUT, it's white gold, which apparently wasn't used until the war, and I can't make the year mark make any sense?

Can anyone help?

Hallmark:
BHJ - crown symbol - 750 - leopards head - then (dodgy only) possibly lower case r, maybe capital H at a stretch.

This thread will tell you pretty much all you need to know (it references the 750 on the hallmark). Lovely ring!

www.mumsnet.com/Talk/_chat/3483970-I-inherited-a-ring-How-can-I-tell-what-the-stone-is

So leopards head means assayed in London. Date letters here webarchive.nationalarchives.gov.uk/+/www.britishhallmarkingcouncil.gov.uk/publications/hallmarks2.pdf

That was the post that inspired me to investigate it in fact!

I found a link to date marks etc, but couldn't see one that looked like the stamp?

Did you ever figure this out?
My ring has same stamp and I’m super curious