Other than the 4Cs, there are other factors that can affect a diamond’s value and rarity. One key factor that affects a diamond’s beauty is its fluorescence. It is a characteristic that makes some diamonds appear differently in colour when they are exposed to direct, intense ultraviolet light. Generally, moderate, strong and very strong fluorescence bring a diamond’s price down because the tinged colour that it effervescent is generally less desirable. It's important for you to be happy with the diamonds you buy. At Bee’s Diamonds, we will show you examples of fluorescence and give you time to make a decision.