I have both real diamonds and manmade diamonds. Just curious.

first of all yes

second of all thats way outdated...like me biting a quarter to make sure its real..

anything with mohs hardness larger than glass can cut it

so even CZ or white sapphire will cut glass


MOHS HARDNESS CHART
7 Quartz, Vanadium, Osmium, Rhenium
7.5 to 8 Hardened steel, Tungsten, Emerald
8 Topaz, Cubic Zirconia
8.5 Chrysoberyl, Chromium
9-9.5 Corundum, Carborundum (SiC), Tungsten carbide, Titanium carbide, Stishovite
9.5-10 Rhenium diboride, Tantalum carbide, Titanium diboride, Boron [12][13]
10 Diamond
>10 Nanocrystalline diamond (hyperdiamond, ultrahard fullerite)

Yes, real lab grown diamonds have all the same physical properties as diamonds occurring in nature.