moissanite

[cntrl]

i was wondering if anyone can explain how i can spot the real thing vs. the fake
also, i live in toronto and was wondering if anyone knows a reputable appraiser that can help me verify that the diamond is what the genscan sheet says and if its the real thing and not the fake. thanks in advance

 

[fuffi]

Moissanite is more brilliant and dispersive than a diamond.  It literally screams out to you.  It tends to have a slightly greenish cast, more noticeable in larger stones.  Through a loupe, you will usually see a group of needles in the pavilion, running perpendicular to the table.  Be aware that standard diamond testers cannot differentiate between diamond and moissanite.

 

[perry]

The larger appraisal firms do have testers that can differentiate. If the diamond is loose, a measurement of specific gravity (or density) will also tell. That requires precission measurement devices.

Perry

 

[DiamondExpert]

Moissanite is doubly refractive and diamond singly refractive, so a simple loupe of the stone at an angle through the crown should reveal a doubling of pavilion facet edges in the former, but not the latter.