Dark Red Labradorite 4x6mm Faceted Rondelle AA Grade - 15-16 Inch Blue-Green and it has been used

and it has been used throughout history for various purposes

The addition of the rhodium plating not only protects these from oxidation but also highlights the Widmanstätten pattern

the others being Diamond

white and black

These colors swirl throughout the stone in fascinating matrices of color

Dark Red Labradorite 4x6mm Faceted Rondelle AA Grade - 15-16 Inch Blue-Green and it has been usedLabradorite is remarkable for the way its aggregate layers refract light, creating iridescent flashes of blue, gold, pale green or copper red. This effect is known as labradorescence, taking its name from the stone. Labradorite is usually gray to green, dark gray, light gray or black. It was discovered in Labrador, Canada in 1770 and named for the area, though it is referenced as a highly revered stone in much older Inuit tribal legends.