Moissanite is not a synthetic diamond or the often dreaded zircon. It's a totally separate gemstone that is naturally only found in meteorites and has almost identical properties to a diamond.

Yes - moissanite will always pass the diamond tester.

Moissanite and diamonds have very similar conductive properties, and that's what diamond testers rely on to determine the result.

Yes. Many rappers and celebrities have stopped buying diamonds, because moissanite is financially smarter and looks identical to a diamond.

No. It's impossible to tell the difference between moissanite and diamond just by looking at them.
You would have to go to an expert jewelry store and use a magnifying loupe to examine the inclusions in both gemstones to tell the difference.

Moissanite jewelry is extremely durable and will not get cloudy, fade, change color or tarnish.

Ucciyo moissanite jewelry is made with a base of 925 silver, which means it's not suspectible to tarnishing in an oxygen environment.

Moissanite is not fake diamond.

Moissanite is a totally separate gemstone that is naturally only found in meteorites and has almost identical properties to a diamond.

Not really, because diamonds are not rare.

The only reason diamonds are expensive is because the mining of diamonds is strictly controlled by a monopoly that holds back supply of diamonds, hence increasing the price.