Even current designers take inspiration from old designs, whether they make a similar design or just use it as is.
Samantha Wills Lavender Plume ring

From my jewellery book about Tiffany jewellery.

Blow up of above text.

From another book


I bought these earrings a few years ago and now see how it’s the same design.

As a designer, if you know you’re using someone else’s design, don’t claim it as your own. And if you’re taking inspiration, don’t copy it, make it different.
Hi,
Amazing designs
Really liked the designs. Thank you for sharing.