Kate Middleton showed her support for team Britain yesterday, stepping out at the National Portrait Gallery in London for the "Road to 2012: Aiming High" photographic exhibition ahead of the London Olympics. HRH made a smart choice in an electric blue dress by Stella McCartney — who also designed Britain's Olympic uniforms for Adidas. The understated frock got a substantial lift from her pink, yellow and white gold 'Trinity' Cartier necklace, which sells for (approx) $74,000. According to Grazia UK this sparkler wasn't on loan, either. Talk about going all out on your accessories! Do you think Kate's luxed-up lanyard is worth that? Get a better look at the Duchess' ensemble (and that big ticket bling) from all the angles before making your call.