Opal was the name of Opal Whitely, a woman who became very famus in the 20's for her childhood diary, which she published, but people accused her of fraud. This is a very interesting story that almost no one knows about, I would recommend it.
I think I once heard, sorry if I am wrong, that an opal is actually meant to be unlucky? If so, and you're one of those superstitious people, perhaps this isn't the best name for your child.
This is my name, and I love it. My mother told me she named me this because of the gem. She said she loved that an Opal has a milky white (innocent) outside, but still has a fire (spunk) on the inside, and that's how a girl/woman should be. Stay nice and sweet, but have a fire and spunk inside.
In the Middle Ages, opal was considered a stone that could provide great luck because it was believed to possess all the virtues of each gemstone whose color was represented in the color spectrum of the opal. However, modern superstition attributes bad luck to the stone, though some believe this is avoided if opal is the owner's birthstone (that is, the owner was born in October) or if the stone is a gift. Even under the last czar at the beginning of the 20th century, it was believed that when a Russian of any sex, of any rank, saw an opal, amongst other goods offered for sale, he or she would not buy anything more, since, in the judgement of subjects of the czar, the opal embodied the evil eye. It's possible that the stone's extreme fragility (when compared to other gemstones) has contributed to this bad reputation.
Opals may be beautiful, but as a name, it just sounds really ugly! The 'o' sound stressed, the ''pulll'' sound following it. It's just ugly in its short entirety. It's very old-fashioned too.