how does it look?
It was made simply of gold, it could change size, and perhaps its weight.
One Ring
The Ring seemed to be made simply of gold, but it was completely impervious to damage, even to dragon fire (unlike other rings). It could be destroyed only by throwing it into the pit of the volcanic Mount Doom where it had been forged. Like some lesser rings, but unlike the other Rings of Power, it bore no gem. It could change size, and perhaps its weight, and could suddenly expand to escape from its wearer. 
lord of the rings what does the ring represent Ring of Power what is its purpose? It was forged by the Dark Lord Sauron during the Second Age to gain dominion over the free peoples of Middle-earth. where is this place located? It is the fictional setting, describing the human-inhabited world, that is, the central continent of the Earth. what are the names of the people from the place you just mentioned? Elves, Men, Dwarves, Hobbits, Ents, Orcs and Trolls, as well as various spirits, the Valar and Maiar. is the ring real? No, it is a central plot element in J. R. R. Tolkien's "The Lord of the Rings". who created it? Dark Lord Sauron when? During the Second Age
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One Ring [SEP] Appearance
The Ring seemed to be made simply of gold, but it was completely impervious to damage, even to dragon fire (unlike other rings). It could be destroyed only by throwing it into the pit of the volcanic Mount Doom where it had been forged. Like some lesser rings, but unlike the other Rings of Power, it bore no gem. It could change size, and perhaps its weight, and could suddenly expand to escape from its wearer. Its identity could be determined by placing it in a fire, when it displayed a fiery inscription in the Black Speech that Sauron had devised.