Cherry Diva - anyone bought any jewellery?

[PennyDreadfull]

So my husband is planning on buying me a new ring as a replacement for my lost engagement ring.
I stumbled across Cherry Diva's website. Some lovely jewellery but sooo cheap.

I have fallen in love with a sterling silver ring with a small opal. According to the website its an actual opal but the ring only costs £25?!

How are they able to sell jewellery like this so cheaply? Is it fake?
All reviews are good though.

Just had a look at the site, love the bohemian earrings. I think it's maybe just a smaller company like empty casket or the mermaids grave. Hopefully someone who has used them will come along .