Credit: Samir Hussein/

After Kate Middleton's blue dress -- which she wore at last Tuesday's announcement of her engagement to Prince William -- sold out in 24 hours, fashionistas worldwide have been clamoring to get her royal look.

While her Issa London dress sells for £385 or about $611 (if you can find it), UK-retailer Tesco announced that a $25 version of the dress will be available online on November 23.

But shoppers better act quickly. "Many women will want a replica. We expect it to sell out fast," Tesco's Jan Marchant told UK's Daily Mirror.

For other similar royal-blue styles, check out these looks:

Merona Petites Ponte Faux Wrap Dress, $24.99,

V-Neck Pleat Waist Knitted Dress, $55.17,