Hi Cindy, What are the dimensions (inner diameter, outer diameter and
thickness) of the rings?
Ivory works very much like dense hardwood, such as Ebony or Lignum
Vitae. All varieties of Ivory are sensitive to heat - so work slowly.
The easiest approach will be to find scrap Ivory of the correct size,
cut the center hole with a drill press, profile the outside diameter
with a scroll saw, and then carve the ring to shape with riffler
files. Sand it with 320-grit paper, followed by 600-grit paper; and
polish it with white rouge (or Zam, or Fabulustre.)
I’m guessing that you live in the USA?
The original bracelet is probably made from Asian Elephant Ivory.
You’ll have to substitute African Ivory or Fossil Mammoth Ivory;
because Asian Elephants are now on the endangered species list. (You
can’t legally use Asian Ivory for the repair - even if you happen to
own a piece.) African Ivory which is already in the United States may
legally be bought and sold within the “lower 48” - unless you happen
to live in a State which is particularly fussy. Fossil Mammoth Ivory
may be bought, sold and traded without any restriction. The latter
is your best choice, for all of the obvious reasons.)
Please feel free to write me off-list if you have more specific
questions. Hope this helps!