Why do some gemstones change colours?

Did you know there are such things as color changing gemstones? Some exquisite gemstones change color under different lighting sources from natural sunlight to florescent or different internal lights. read more

Many gemstones will show some color change under the different lights like: Blue sapphires looks more blue under the natural light than under the incandescent light. Tourmaline displays different colors when viewed from different angles under the same lightning. read more

Color change gemstones display different colors according to changes in lighting. The most famous of these is the rare and expensive alexandrite, a variety of chrysoberyl. However, color-change garnets and color-change sapphires have appeared on the market and show equally dramatic color changes. read more

Color change gems. have two approximately equal sized transmission windows. A blue gemstone appears blue because it absorbs all frequencies of light except for blue. A gemstone that absorbs both blue and red light will appear blue when the light is rich in blue wavelengths (e.g. in sunlight or fluorescent light) and red or purple when the light is rich in red wavelengths (e.g. in incandescent light). read more

Many gemstones will show some color change under the different lights like: Blue sapphires looks more blue under the natural light than under the incandescent light. Tourmaline displays different colors when viewed from different angles under the same lightning. read more