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 good symmetry, a well matched strand of true blue in a medium saturation for Zircon, and they are a world class example of the best Zircon colors and the extra value is that they are a Diamond substitute.