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Kate Middleton wears Princess Diana's stunning 18-carat sapphire engagement ring - Unique Diamond Engagement and Wedding Rings
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Kate Middleton's engagement ring 'cleverly' designed to make it more expensive 'Adds £42k | Express.co.uk
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Solid Sterling Silver Kate Middleton's Engagement Ring with Simulated Sapphire Blue Color Cubic Zirconia | Amazon.com
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