Crown Princess Mary of Denmark, 51, wears a 1.5-carat emerald-cut diamond engagement ring that was initially set between two emerald-cut rubies.
The ring, which is absolutely beautiful, was made to resemble the Danish flag by her new husband Crown Princess Frederik of Denmark.
This was because Mary Donaldson grew up in Australia and moved to Denmark to become the Crown Princess in 2004.
Crown Princess Mary eventually upgraded her engagement ring over time by adding two diamond baguettes, which are thought to stand in for the couple’s four children – Christian, Isabella, Vincent and Josephine.
Since she made these additions, the ring’s worth has climbed by about £10,000.
The jewellery specialists at Steven Stone Jewellers examined the gorgeous ring closely and explained what Mary’s modifications meant.
Steven Stone Jewellers diamond expert Maxwell Stone said: “With a 1.50-carat emerald-cut diamond centre stone, sat between two 70-point emerald cut rubies, Princess Mary of Denmark’s stunning engagement ring originally had an estimated value of £40,000.
“Since her wedding, the Crown Princess has added two 50-point diamond baguettes, which have undoubtedly increased the value and I’d estimate this to be £50,000.
“When we see a ring with multiple stones like this, they typically represent something and it’s likely that Princess Mary’s alteration is a sentimental one, with the four stones reportedly representing the couple’s four children.”
Crown Princess Mary usually pairs her engagement ring with a matching wedding band.
In place of her wedding band and engagement ring, Crown Princess Mary occasionally wears a subtle gold band designed by the Danish jewellery company Ole Lynggaard Copenhagen.
The Crown Princess spent £2,097 for the “Love Bands Ring,” which is made of white and chocolate-coloured diamonds.
On her left hand, Mary wears a custom-made gold ring by Marianne Dulong, a superb jewellery creator that the Crown Princess also enjoys.
Crown Princess Mary frequently chooses to wear a more striking ring on her right hand instead of her engagement and wedding bands.
It appears larger than her wedding band because of its thick, domed band and pavé diamonds.
Mary wore the bigger ring to commemorate the 100th anniversary of the Danish Supreme Court in 2019.
Her wedding set was once more absent for this more recent ring.