Thank you for contacting Mearto with your appraisal inquiry.

It is a beautiful white gold ring with pink emerald. Such vintage rings are being offered at auction on a regular basis.
The design of the ring has been popular for years and still is. It is classic and smart at the same time. The pink emerald also known as a morganite, has a lovely colour and the size and cut makes it quite beautiful and extraordinary. The whitegold is 14 kt as you wrote. As for the age of the ring it is difficult as this particular design has been popular for quite some decades.

I believe that it would attract the attention of both collectors and dealers if it came up for auction.
The estimate provided is for a well-advertised specialised online jewellery auction, where I believe the ring has the best chance of realising its fullest potential. However, there is no measurement for the sentimental value you might attach to the beautiful Pink Emerald Tina ring. Retail "asking prices" can be higher and vary.

Please let me know if you have any additional questions. I’m happy to help.
Thank you