Rings designs were heavily influenced by Queen Victoria during the Victorian Era and they changed significantly during the middle years of the Victorian era after Prince Albert died in 1861.
His death had a great impact on the type of jewelry she wore and so jewelers followed her lead and changed their designs to match hers. During this time, rose gold color on rings became popular and it remains that way to this day. Anytime you see a rose gold ring, you can trace its roots back to the Victorian era.
These rose gold rings featured designs such as hearts, acorns, stars, bees, birds, insects, shells, and of course some flowers, like this ring.