Sterling Silver and gold rings for women and men in jewelry making did not start today. It started way long ago in humankind history. Sterling Silver and gold rings was part of its development to ornate Women and men hand fingers with a lucrative artistic design. Also by time it was used in religious ceremonies and magics. From there too , there was an influence of the ceremony on the look of the rings, such as animal teeth or leather etc.
At the very beginning, it was a kind of metal strap or plant twigs made as a chin attached around finger. Later they used metal to form a sturdier ring and more elaborate design. Afterwards the metal ring became just a part of the ring beauty as stones and more materials got made a part of the whole ring itself. It did not take a long time until artists were demanded to create a more magnificent rings and jewelry than the neighbor had already acquired. Jewelers added gem stones and invested creativity to this market. Precious stones and semi precious came along the precious metals used such as silver gold and platinum.
In museums all over the globe, one might see the jewelry used in prehistoric time up to ancient middle East Mesopotamia and Egypt. You can see the Greek touch and the Roman afterwards on that industry. During the middle ages, rings were mostly for religious purposes and especially the Christian faith. The renaissance widened the modern rings demand by drafting a greater demand for jewelry and necklace for men too.
Today the jewelry making is unlimited to imagination, and the use of material to make the rings you desire is unlimited. The use of plastic and cloth instead of metal is common. The only thing that matters is ingenuity of imagination.