Melania Trump is the US First Lady and the wife of Donald Trump, 74. The couple tied the knot at Donald’s Mar-A-Lago estate on January 22, 2005.
The item was replaced with a 25-carat diamond and is said to be worth as much as £2.7million.
Melania will usually wear the glitzy jewel when she is seen out in her First Lady role.
As well as an engagement ring, many couples choose to exchange wedding bands when they marry.
However, the mother-of-one will rarely wear the expensive wedding band she was given.
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The jewel was designed to match her engagement ring and has an eye-watering price tag, Gary Ingram, the CEO of TheDiamondStore.co.uk, revealed.
Analysing the ring for Express.co.uk, he said: “I am confident that there are 25 stones in the band, each is one-carat emerald D Flawless which would match her engagement ring.
“The retail value would therefore be close to £500,000.”
Although the ring complements her engagement diamond, Melania will mostly leave it at home.
“Firstly, if it doesn’t sit comfortably next to her statement engagement ring.
“It is also a substantial ring that is worth a fortune, so it could alienate voters who feel she is flaunting her wealth.
“Or, Melania may not want her rings to be a focal point in the press, so she doesn’t wear it in public.”