40th Anniversary Ruby gifts. The 40th anniversary celebrates love and passion and the ruby is one of the most coveted gemstones of all. Within the heart of a ruby is thought to lie a flame of fire that grows brighter with each passing year, just like the flame of your forty-year marriage. Celebrating your Ruby anniversary is a very special occasion, it's not the time to be panicking over last minute gift ideas. Let MyGiftGenie help out with our range of 40th ruby anniversary gifts that will bring a smile to both of your faces and help mark this momentous occasion. To ensure that you never forget any of your future anniversaries, why not sign up to our free anniversary reminder service?