It looks like an Echeveria hybrid to me. I did a search on Dave's Garden, and I found a few that look similar: Echeveria gibbiflora, Echeveria 'Berkeley', and Echeveria 'Sun Dancer' (to name a few). I'm no expert, though, but I thought that might steer you in the right direction for a positive ID. Good luck!

Here is a link that might be useful: Dave's Garden Search Form

It looks like it may well have carunculations (sp?) in the future - they never tickled my fancy, but Paracelsus Brad grows them (and the regular Echeverias) wonderfully - I think if he sees your post he'll respond.

I don't know about it developing carunculations, that is rare, and I don't see any yet. The plant does have crenelated (wrinkled) leaf edges, which are common among hybrid Echeverias. These plants can look so different in different seasons that they are difficult to identify from a single picture of one plant at one moment in time. The overall sizes at maturity can range from a few inches to more than a foot.

The upright leaves are something my plants do when recovering from a recent beheading. I suspect this plant was chopped and re-rooted a few months ago. Leaf color will change with the seasons. The deep U-shape of the leaves is an important feature to note while comparing hybrids, along with the red leaf margins and the crenelations.

A note of concern, the soil looks wet and peaty, neither are good. Make sure you have a free-draining soil mix.

A good place to search for the names of California hybrids is, surprisingly, Australia. Check out Bev Spiller's Echeverias in Oz web site linked below.

Brad

Here is a link that might be useful: Echeverias in Oz

Crenelations:
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Carunculations:

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Thank you, paracelsus, for the photos. I think my plant is the first one of your photos since there was another one looked exactly like yours (and the seller said this one came from that one) at the place where I bought this one.

You're right about the potting mix. I just re-potted it into my mix and spray it a bit, so it looked wet. I don't have perlite in my mix, though. But I will make sure to check on it often to see if drainage is a problem and change the mix if necessary.

Thank you everyone for your help.

Xuan