The listing, 18k white gold filled size 5 has ended.
Gold Filled - gold filled jewelry is much more valuable than jewelry that is gold plated.
When something is gold filled, it has a thick sheet of gold applied to a base metal, 50 to 100,000 times thicker than gold plating, and in order for something to be considered Gold Filled, it must have a gold content of at least 1/20th the total weight of the item.
These pieces are so durable that the gold can last anywhere from 5 – 30 years depending on the wear.
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The ring in this list is a 18k white gold filled with a white sapphire but the other side is bended as seen in the picture ,its regularly size 6 but because of the bend i would say size 5 could wear it without any trouble .