Chanel Rouge Byzantin is a moderately cool-toned, dark red with a satin finish. It is a limited edition lipstick that retails for $38.00 and contains 0.12 oz.
Chanel Rouge Byzantin Rouge Allure Lipstick ($32.00 for 0.12 oz.) is described as "an iridescent ruby red with a hint of sapphire, for a rich, jewel-toned lip look." On me, it's a rich, pinked red with ruby micro-shimmer. It delivers nearly opaque color and even coverage. There is subtle iridescent sheen--looks almost fuchsia to me--that pops at a distance. It's a very holiday-esque red to me. It's bright and joyous, but the depth of the color gives it a luxurious richness.
FURTHER READING: Formula Overview, which is a detailed review of the range as a whole.
The next generation of ROUGE ALLURE dresses lips with unmistakable attitude. A new formula with concentrated, ultra-thin pigments offers radically intense colour with full coverage and a satin finish. Leaves lips supple and protected with lasting comfort.