thanks for the quick answer MissCassie
Amora Gems and Moissanites are both made of silicon carbide, but I thought they had a different crystal structure? Doesn't that make the actual silicon carbide rock different? Somewhere on another site they said it's like comparing graphite and diamond.
The crystal structure is different to Moissanite. It has a higher refractive index and a MOHS hardness rating higher than moissanite.
Less will have specific details about what that all means in terms of a different crystal structure, but for the purposes of appraisal "moissanite" is probably what makes the most sense in all reality. The market is all but ignorant to what an Amora Gem is.
When I had my wife's engagement ring set, the jeweler marked "moissanite" on his note sheet. However, the jeweler came out and asked me about it because he had never seen "moissanite" like that before, meaning colorless and ideal cut. My wife's is a D/IF 6.6mm. When I explained Amora Gem to him, he was actually impressed. He said he had worked with moissanite before, but the quailty of the Amora was way beyond anything he'd ever seen in Moissanite and that it was as beautiful as any diamond he'd ever worked with. This was back in 2014 before Amora was available in the US market.
What sets the Amora Gem apart from moissanite from a value perspective is the details. Super Ideal cut gems with availability in flawless clarity. Moissanite is not flawless clarity and their cutting can be downright terrible.
My wife has a pair of Forever Brilliant Hearts and Arrows cut 1 carat earrings, and they are very impressive with their sparkle, fire and scintillation. But the H&A moissanite is limited production, and it still has that J color with the chameleon green effect in certain lighting. They are very sparkly though, tough to beat in that category.
I've seen moissanite with about a "good" rating in the cut, and they look terrible. Moissanite has always been known for its inconsistent cut quality from C&C.
Anyways, appraisals on synthetic gems are worthless if you ask me.
Take the appraiasal cost of the piece without the cost of the Amora, add the Amora's cost and there you go.