Kate Middleton is Officially Engaged wearing an Issa London Dress

The beautiful Kate Middleton officially announced her engagement to Prince William and wore an Issa London dress to her first press conference. The tight-fitting royal blue jersey and silk dress with a gathered front was appropriately named 'Sapphire.' It has been reported that her dress sold out in the UK within hours. The dress was priced at £385 or about $615. It is not available in the US.

For those of you wanting a replica you better move quickly! A knock-off is being sold by Tesco.com for £16 or $25.