Spending 40 years together is a great reason to celebrate! Ruby, because rubies are thought to possess an eternal inner flame which is a symbol that the passion in a marriage is still very alive and strong after 40 years together. Happy 40th Ruby Anniversary to my beautiful parents inside and out! You are my true role models and you’ve shown me the importance of marriage….til death do us part. We absolutely loved planning this surprise anniversary celebration and creating more memories!