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2 Posts tagged with the vault_gallery tag
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From today, you can see this gorgeous 110-carat pear-shaped yellow diamond in The Vault gallery thanks to the generosity of Cora diamond manufacturers who have loaned us the gem.

 

Jerry Hall with the Cora Sun-Drop diamond Copyright Adrian Brooks - Imagewise.jpg

 

Model Jerry Hall is dazzled by the arrival of the Cora Sun-Drop in The Vault gallery (Image copyright Adrian Brooks - Imagewise)

 

These large (over 100 carat) coloured diamonds are extremely rare in nature and are historically significant as so few exist. So it's a privilege to be able to have the Cora Sun-Drop on show to our visitors.

 

Cora-Sun-Drop-(black)-Photography-700.jpgI asked Alan Hart, the head of collections in our Mineralogy Department if he could tell me what particularly fascinated him about diamonds like this. He says:

 

'When you look at a diamond like this you are not only looking at a unique piece of art, you are looking at the fascinating science that bought this stone to us.

 

'The Cora Sun-Drop diamond was formed deep within the Earth’s crust 1-3 billion years ago. As it grew, it incorporated nitrogen into its carbon crystal structure. It is these nitrogen impurities that give the diamond its yellow colour as they modify light, absorbing the blue part of the visible spectrum. The diamond then travelled on a long journey upwards in a slushy rock magma. After it was found within a kimberlite pipe (a type of volcanic rock), it was expertly studied and cut, bringing the diamond to life.

 

'Good quality coloured diamonds, known as "fancy" diamonds, are extremely rare. Only about 1 in 10,000 mined diamonds are thought to have good body colour, and only a small percentage of these are considered to have good enough clarity to be labelled as a fancy diamond.

 

'The Cora Sun-Drop combines both a vivid yellow colour and another rare quality, a large size. At just over 110 carats, it is not only exceptionally large, it is the largest yellow pear-shaped diamond known.'

 

But diamonds aren't forever, I'm afraid! The Cora Sun-Drop is only with us in The Vault for a limited time, so bask in its light while you can. And don't forget there are 300 other diamonds in The Vault, including the Aurora collection, as well as a model of the famous Koh-i-Noor diamond.

 

You can hear Alan Hart talk about our impressive diamonds and gemstones at The Treasure Trove talk here in the Attenborough Studio on 25 March at 14.30.

 

And in case you wondered what the largest faceted diamond in the world is? At a whopping 545.67 carats, it's said to be the Golden Jubilee, also known as the Great Star of Africa, which now resides in the Royal Thai Palace as part of the crown jewels.

 

Watch the video about the Cora Sun-Drop diamond and The Vault gallery

 

Glimpse The Vault gallery highlights in our slideshow

 

Find out more about diamonds on our website

 

Pear-shaped Cora Sun-Drop image right courtesy Tom Tragale for M Patricof, Creative Group


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The massive Ice Age mammals that lurk in the recesses of the Central Hall, some giant worms and a gigantic gold nugget, these are all highlights of our last summer Night Safari tour on Monday 12 July.

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Our fossil mammal expert, Adrian Lister, introduces the Ice Age glyptodon.jpgmammals on the night and gives safari visitors the rare chance to get closer to some of our most iconic Central Hall exhibits, like the Ilford Woolly Mammoth skull and tusks, below left, and our armadillo-like Glyptodon fossil, pictured right.

 

Upstairs in Central Hall, curator Emma Sherlock and her giant worms lend their charms to the Tree gallery, and mineralogist Mike Rumsey shares some golden moments in the Vault gallery. Museum botanist Sandy Knapp presents her top Museum pieces, Central Hall's botanically illustrated ceiling panels, and butterfly explorer Blanca Huertas reveals her favourite flutterers.

 

As before, Night Safari visitors can enjoy a drink and snacks at the bar before and after their exclusive tours of Central Hall. There's also a break in the middle of the tour.

 

Book tickets online for Night Safari on 12 July

 

Believe it or not, there was actually a proposal of marriage made - and accepted - in The Vault gallery at the last Night Safari in May, by one of the safari visitors. He'd rung the event organisers beforehand to arrange it and said afterwards: 'Not only was the Night Safari so cool, but finishing the night knowing that I will be spending the rest of my life with my girlfriend, is beyond happiness.' How sweet is that and what a place to do it, surrounded by all those gems.

 

And put this date in your diary. On 1 November, Night Safari returns for a Halloween special.

 

Back to one of July's highlights ... the Ilford Woolly Mammoth skull and tusks display in Central Hall, shown below, is something to behold. But the enormity of this Essex fossil doesn't really come across here. It's the only complete mammoth skull ever to be found in Britain.

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The Ilford Woolly Mammoth model, on the right here, is not on public display, but held in our Palaeontology collection at the Museum