Thank you for contacting Mearto with your appraisal inquiry.

It is a beautiful Gucci bracelet. Such vintage jewellery are being offered at auction on a regular basis.
The bracelet is very smart and elegant and the design is typical of Gucci with the interlocking horsebit design. The brown diamonds adds a very nice touch to the beautiful bracelet.
According to your description the bracelet is made of 18 kt. I cannot determine what the total carat weight of the brown diamonds is based on the photos. I will assume that the total carat weight is around 1,8 ct. It the total carat weight is more the estimate will increase and if the total carat weight is less than the 1,8 ct the estimate will decrease.

I believe that this bracelet 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 bracelet 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 bracelet. 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