I received this piece from my Great Aunt. It has been in the family for over 100 years and she is ready to let it go. It was originally a tie pin, converted to a ring, now a necklace. I am looking to see if anyone knows or has seen any similar pieces. The center diamond is 2 carats, surrounded by rubies and more diamonds. Truly a fascinating piece. Not sure of its value, but I plan on getting it appraised. Any ideas?