By A Mystery Man Writer
Crown Princess Mary of Denmark wore a special sapphire brooch for her son Prince Christian's 18th birthday — the same heirloom piece that she wore to his christening in 2006
See Crown Princess Mary of Denmark's jewellery collection - Vogue
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A Sweet, Sentimental Sapphire Brooch for Prince Christian's
Prince Christian of Denmark's 18th Birthday
Crown Princess Mary's son featured in new stamp to mark 18th birthday
A Sweet, Sentimental Sapphire Brooch for Prince Christian's
Princess Isabella of Denmark wears Princess Mary's Max Mara blazer
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