My mother purchased a Jabel ring from an estate sale in Arizona. The inside states “Platinum Jabel” on one side and the other side says “patd. 116337.” I believe the center stone is a rare Cabochon, in turquoise. Is that possible or was the center likely switched out at one time? Also, how much would it be worth estimated? There are two diamonds, one on each side of the center stone.
It is best for your to bring this ring to an appraiser to know value. I do not have enough information to answer your questions regarding this ring.