The reaction between the milk and chemical makeup of red corals causes this visible change. First, place your coral bead on a white cloth or neutral background with a quality light source. ... Real coral beads have a smooth surface, even under strong magnification.

How can you tell if red coral is real?

Turmeric Test:

Bring a piece of raw turmeric and rub the gemstone with it. If you notice the red marks on the turmeric or if turmeric changes in red color then the Coral is fake. On the other hand if color remains same then it is an authentic Red Coral Gemstone.

Does coral jewelry change color?

If it has been dyed, the color will eventually come off on the rag. ... Bamboo coral's natural color is gray, which means that most of the red coral available today has been dyed. Note: natural/genuine coral does come in a rainbow of colors, blue and lavender being the rarest.