The late Princess Diana was often spotted in creations by the Dublin designer and raised his international profile in the 1990s and he still works with members of the royal family, including Zara Phillips and Princess Anne.
But the Duchess of Cambridge is “no Princess Diana”, according to Costelloe.
“She’s low key at the moment,” he told Independent Style when asked about his thoughts on the Duchess.
Diana, Princess of Wales, above, smiling during her visit to Sudbury, part of her official tour of Canada, The Princess is wearing a pink suit designed by fashion designer Paul Costelloe (Photo by Tim Graham/Getty Images)
“She started off as another Princess Diana, but I think I got the right one. I was lucky to have Princess Diana as my epitaph. Kate is lovely, but she’s no Princess Diana.
“Different backgrounds, different everything. She’s obviously very obedient and carries out the royal message. She won’t be running around and hanging out with Elton John anytime soon.”
And he explained that he doesn’t court high profile clients but is more than happy to work with anyone.
“I would love to work with anybody who is relevant, if you feel like coming to my little studio in Baker Street,” he explained.
“I haven’t been receiving any phone calls. My main concentration is working on my catwalk show for next September, my Dunnes [Stores] winter collection and I’m just back from Portugal last night.”
Paul has just launched his Spring/Summer Pembroke Jewellery collection, which he describes as “not aggressive” and in keeping with his signature elegant style.
Catherine, Duchess of Cambridge smiles as she leaves the Stephen Lawrence Centre in south east London March 27, 2015. REUTERS/Stefan Wermuth
“It’s still carrying a very specific look, it’s very feminine, it’s certainly not aggressive,” he said. “It’s very discreet really. It has a lovely attitude.
“I find it hard to talk about jewellery, it’s how it’s worn. The simplicity of its shape is part of its success. It’s pretty reasonably priced for proper jewellery – it’s not costume jewellery.
“It’s very sensitive socially to the Irish market, where it’s mainly sold. You won’t be attacked on your way home from the DART for your diamonds.
His career may have spanned three decades, but the successful designer said he prefers to walk the streets of Dublin to always keep his perspective on reality fresh.