Customers who are in the market to buy sapphire diamond eternity rings for their loved one do not know a lot about the history of these rings. Engagement rings actually gained immense popularity among wealthy and royal families during the 14th and 15th Century. Diamonds, emeralds, rubies, and sapphires were used in most of the engagement rings at that time. However, sapphire was the most loved choice of most couples, as they believed that these gemstones symbolized truth, love, and commitment. It is believed that the ancient Romans were the ones who first used sapphire engagement rings. In those days, men used to gift sapphire gemstone rings to their loved ones after getting engaged. Several ancient Romans believed that the color of sapphire gemstones would change or fade if an untruthful or impure person wore it. As a result, husbands who returned from wars, journeys, and long campaigns used to check the color of their wife’s sapphire engagement ring to test their fidelity. Interestingly, the link between fidelity and sapphires was actually inspired by ‘Le Sapphire Merveiellence’, which was an 18th Century Mme de Jenlis’ fable.