Thank you for contacting Mearto with your appraisal inquiry.

It is a beautiful pair of Gucci earrings. Such vintage jewellery are being offered at auction on a regular basis.
The pair of earrings are very smart and elegant and the design is typical of Gucci with the interlocking horsebit design. This particular design has been the Gucci trademark for decades. The brown diamonds adds a very nice touch to the beautiful earrings.
According to your description the earrings are made of 18 kt. I cannot determine the total carat weight of the brown diamonds based on the photos. I will assume that the total carat weight is around 1,0 ct. It the total carat weight is more the estimate will increase and if the total carat weight is less than the 1,0 ct the estimate will decrease.

I believe that this beautiful set of gold and diamond Gucci earrings will 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 Gucci earrings has the best chance of realising its fullest potential. However, there is no measurement for the sentimental value you might attach to the beautiful Gucci gold and diamond earrings. 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