Blue Zircon Tear Drop Briolettes measure approximately 4x3mm to 6x3mm in size, have a sub-adamantine luster which is just under Diamond for scintillation showing a superior brilliance, an excellent cut with excellent symmetry, a well-matched strand of true blue in a medium-light saturation for Zircon, and they are an example of the best Zircon color and the extra value is that they are a Blue Diamond substitute.