Bulgari Shuanghuan stopped production for two main reasons:

1. The Bulgari brand continuously introduced new models, and the new double ring replaced the old double ring, which led to the elimination of the old double ring and finally stopped production.

2. Due to the change of economic environment and consumer demand, Bulgari had to eliminate some models, which also led to the reduction of old double rings.

The above information is for reference only, and it is recommended to consult Bulgari officials for more detailed reasons.