Sapphires can present themselves in a variety of colours ( they are often blue, but did you know that in its red form it's actually a Ruby?)
Incredibly strong and rare these are a fitting symbol of 45 years of marriage.
Ideas on Ruby Anniversary Gifts (45 Year Anniversary Gifts)
There are plenty of Sapphire gift ideas in the form of jewellery of course and often combined with diamonds they can make stunning presents.
Sapphires are often incorporated into fine watches within a broad budget range.