Usually, rings for the toes are acquired by people who are seriously interested in esoteric science and the art of yoga. For them, the main thing in ring is not decorating material, but the runes and ornaments covering the rim, in which deep meaning lies. The accessory itself is not very noticeable and even modest, but its unusualness is fully compensated by the modesty, so without attention it will not remain.
Putting a ring on toe is a Hindu custom. They believe that it makes a woman more beautiful and desirable. In India, it is accepted to wear two rings on the second fingers of both feet or only on the left foot. Usually, the rings are made of silver. Sometimes the rings are attached to the bracelet on the ankle. This accessory has one highlight - it is very imperceptible and does not try to scream about itself.
Nowadays, toe rings are made of gold. Gold is a fairly soft metal, especially if customer chooses a "ripped" or serpentine shape of the rim. Moreover, gold has many different shades, and they all go well with tanned skin. All other metals, including silver, are likely to oxidize, leaving an ugly dark trace on the delicate skin.