Princess Eugenie £100k engagement ring has three similarities to Sarah Ferguson’s

In terms of value, “when it was new, Sarah’s ring was estimated to cost £25,000. Today with inflation and adding some historical value it would be around £70,000”.

Like Princess Eugenie’s engagement ring, Sarah’s has a diamond surrounding the ruby, “the diamonds probably cost about £8,000 so without them, the value of the ring would currently be around or little over £60,000”.

The experts also revealed how rare Burmese rubies are: “All rubies are made from a mineral called corundum, which is the same mineral that sapphires are formed from. But red corundum is called ‘ruby’, while all other corundum colours are called ‘sapphires’.

“The red colour of rubies is caused by chromium trace elements. The more chromium is present, the more intense the ruby’s red colour. The Burmese ruby is one of the most valuable ruby variations, because of its extremely saturated red colour, caused by a high chromium content in the ground in the Myanmar region where it is mined.”

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