It's the biggest find since the 3,000-carat Cullinan diamond was found in South Africa in 1905 and cut into nine separate stones.

Botswana's government said it was the largest diamond ever discovered in the southern African state. Joining me now is our reporter, Ema McCarthy.

Tell me more. Lucy, Marilyn was right, wasn't she, when she said that diamonds are a girl's best friend.

And certainly, this must be one of the best friends of all.

As you said, the second largest diamond ever found, a whopping 2,492 carats.

Now, I know that sounds enormous, but to visualize it, I've brought a little prop in with me.

It's about the size of a cup or a can of soft drink or soda.

So it's pretty substantial. I thought you were bringing me a cup of tea. No, sadly not.

It is empty.

But can you imagine a diamond of that size?

And they found that, as you said, in Botswana, about 300 miles north of the capital, Gaborone.

So an enormous discovery.

It's the biggest find since the Cullinan diamond in 1905.

Way back then, that of course was 3,106 carats, most of which now has all been cut up.

And you can find it in the crown jewels at the Tower of London. Yeah, they chopped it up.

I mean, you can understand it because that's not going to fit on your finger, is it? Absolutely not.

While it would be lovely, I don't think it would be very comfortable on your finger or around your neck. So now what happens next is it goes through weeks of different sorts of testing and analysis.

And then, of course, it will be cut into various sized stones.

And then the most likely route from that is that a major jewelry house or a fashion brand will purchase the stones and create a collection from it.

So the last time that a diamond so substantial was found back in 2019, it was then bought in 2020 by LVMH.

So Lucy, it is certainly out there that we may be able to own a piece of it.

But if we can afford it, I don't know.

That's the question. So how much is it worth?

I think they still yet to value it.

That, of course, comes later once it's been cut, once it's been analyzed.

I actually don't think I want to know how much it's going to be worth, Lucy.

An eye-watering amount, it's fair to say.

That's for sure. Okay, well, thank you very much, Emy McCarthy, our reporter there on the second largest diamond ever found.

Thank you very much.