Blake Lively, Avril Lavigne, Kate Hudson: Guess the Celebrity Engagement Ring (GALLERY)

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They say that diamonds are a girl’s best friend – and they must be right. The year 2012 has been a year jam packed of celebrity engagement news.

Between Avril Lavgine, 27, and Jennifer Aniston, 43, tons of Hollywood’s most famous faces have been officially taken off the market.

Want to guess which ring belongs to the celebrity?

The veritable epidemic of engagement rings has left us partially blind – with some starlets sporting rocks as big as 20 carats. There’s been so much eye candy, it’s hard to keep all the new bling straight.

Fortunately, Celebuzz compiled a photo gallery of the most impressive engagement rocks in celebrity history for you to gaze at (and take notes for your special someone).

From square cut to bageutte-shaped, Hollywood’s engagement rings are big, shiny, and completely out of our budget.

Sometimes the marriages, or even engagements, don’t have quite a happy ending – but we all know that diamonds are forever.

Launch the gallery above to start testing your celebrity bling knowledge.