The Duchess of Sussex stunned onlookers with her appearance during a black tie reception hosted by the president of Fiji, Jioji Konrote, last October.
And the dazzling yellow diamond earrings Meghan Markle, 37, wore for the lavish occasion, along with a £1,095 dress by designer designer SAFiYAA, have now been revealed as being by celebrity designer Butani.
An expert told FEMAIL that the generously sized multi-tier earrings, which at the time Kensington Palace confirmed the pregnant duchess had borrowed, could be worth up to £500,000.
An array of celebrities, including Jennifer Lopez, Kate Beckinsale, Rihanna, Christina Hendricks even Michelle Obama have also been spotted wearing the Hong Kong-based brand.
Members of the royal family attending official engagements are not usually seen wearing jewellery borrowed from designers.
The dazzling yellow diamond earrings Meghan Markle, 37, wore for her banquet with the president of Fiji Jioji Konrote last October have now been revealed as being by celebrity designer Butani and are thought to be worth £500,000
Speaking about the opulent earrings, Deborah Papas, gemologist at Prestige Pawnbrokers of Channel 4’s Posh Pawn, said: ‘The Duchess of Sussex never ceases to amaze us with the beautiful jewellery she wears.
‘In Fiji she chose to wear an absolutely stand-out pair of chandelier style diamond drop earrings in three strands set with white and yellow coloured diamonds.
‘Most are round but some are pear shaped to give the stepped drop effect and all set in white gold.
‘These drops appear very heavy, almost pulling down the lobe, but sparkle beautifully even with the slightest turn of the head and are truly stunning. They could easily be worth £500,000 or more.’
A string of celebrities are fans of the designer and Ariana Grande was pictured wearing a pair of large solitaire studs by the designer to the Met Gala in December 2018
Actor Christina Hendricks attends the 19th Annual Post-Golden Globes Party in 2018 wearing a pair of Butani earrings
Explaining the etiquette on royals wearing jewellery, William Hanson told FEMAIL: ‘For grand events like state banquets and formal dinners, royalty usually wear more lavish, priceless jewellery.
‘For less showy daytime events the ‘bling’ is often toned down to something more subtle and discrete, with the exception of any engagement or wedding rings.’
He added: ‘Royal women do have it very difficult – we all want them to look like royalty but if they wear anything too over the top or expensive they are criticised for being out of touch. They can’t win.’
Butani was founded in 1977 by brothers Manoj and Mukesh Butani from Hong Kong.
An expert told FEMAIL that the generously sized multi-tier earrings, which Kensington Palace confirmed at the time that the pregnant duchess had borrowed, could be worth up to £500,000
William Hanson told FEMAIL: ‘For grand events, like state banquets and formal dinners, royalty usually wear more lavish, priceless jewellery
The brand is popular on the A list circuit, with an array of celebrities seen wearing their jewellery on the red carpet.
Rihanna wore a pair of their earrings in her Love On The Brain video in 2016, which famously saw her soaking in a tub wearing nothing but jagged diamond earrings and black lipstick.
Elsewhere Ariana Grande was pictured wearing a pair of large solitaire studs to the Met Gala in December, while Kate Beckinsale wore a pair of diamond string earrings to the premiere of The Only Living Boy in New York in 2017.
That same year, Jennifer Lopez sported a pair of her trademark hoops embellished with diamonds by the designer for the World of Dance premiere.
FEMAIL have contacted Butani for comment.
In 2017 Jennifer Lopez sported a pair of her trademark hoops embellished with diamonds by the designer for the World of Dance premiere