Moissanite
Moissanite diamond is the best replacement to real diamond and can be 100% passed by a diamond pen, but it’s more sparkling, brighter than the real diamond and the fire is also more stunning.
You could choose as per the diameter of the round brilliant cut moissanite diamond. (0.1ct=3mm, 0.2ct=3.5mm, 0.3ct=4mm, 0.4ct= 4.5mm, 0.5ct=5mm, 0.6ct=5.5mm, 0.8ct=6mm, 1ct=6.5mm, 1.2ct=7mm, 1.5ct=7.5mm, 2ct=8mm, 3ct=9mm, 4ct=10mm).
