Why Moissanite is not colorless and has chameleon behaviour.


BTD Crown Jewel
lessw said:
...that's simply the way it is in our universe.
Love this! Thanks for the detailed (yet still understandable, for this layperson) explanation of moissanite in both the macro-cosmic universe and the sparklie-cosmic universe.
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Staff member
I wanted to add an example from a previous post of a person who purchased an unenhanced Moissanite and was shocked at how yellow it turned in specific lighting - Moissanite's chameleon character in action.

If you understand what's going on atomically, then you'll understand why something like this can occur with Moissanite:

So about three weeks ago, I purchased a 1 ct round brilliant moissanite ...

When the stone originally showed up, I was very pleased with it- it seemed white enough to me in every light. [COLOR= #FF0000]But yesterday, I stopped by the jeweler to give them the stone and see the setting. My God, the thing looked as yellow as could be under the lighting in the store! I could not believe my eyes, and left the store with the loose stone and the setting without having it set. They also had a moissanite they had ordered in (obviously at a much higher price to me,) and it looked similarly yellow.[/COLOR]

I spent the rest of the day looking at the stone resting in the setting of the stone in different lights, and I cannot for the life of me seem to recreate the yellow I saw in the store. I've put it under fluorescent lights, incandescent light, sunlight... it looks fine to me. However, now I'm completely paranoid about the color, and that my fiance will encounter some situation where the stone looks noticeably horrible once again. Is there something about jewelry store lighting that brings out the worst in these things...
Source link:
My moissanite looks HORRIBLY yellow

Best regards
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I take it this is why sometimes subpar flash photography makes Moissanite look yellow? The color of the flash itself is either a more yellow florescent or it's incandescent?

In regards to the linked thread, I know it's an older thread and not every business is shady. But it makes sense that a few jewelry stores out there might use some "shady" lighting knowing that it will bring out the color in any stone that is not colorless. What better way to convince someone that a near-colorless stone is noticeably yellow and the only way to go is to shell out big bucks for a D/E/F?

I experienced some shady sales tactics in a Jared's. I say shady, maybe the saleswoman was just misinformed but I was told that all of their settings contain D color lighting. Their website ended up saying otherwise stating that they were "H". I know big box stores are what they are, and people make mistakes, but that definitely set me back in my desire to believe anything other than "if their mouth is moving they're lying".
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Great information Less.
My 2ct Forever Bright Moissanite does exactly as you describe.
Under most lighting conditions the stone looks absolutely white, no color at all.
But under a defused lighting it can make a dramatic shift to yellow. I can take my FB outside under our patio awning (which is striped between off white and slate gray) and hold my ring where the light is filtering through the darker grey and it is pure white, but move it over a foot where the light is filtering through the off white part of the awning and the ring turns an absolutely stunning "cannary" yellow.
Just move the ring one foot either direction and like magic the ring color changes instantly.
It's just part of owning a Miossanite and it will happen whether you have A Forever Brilliant Or Amora Moisanite, its just the nature of the stone.
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Moissanite is a gemstone that is composed of silicon carbide, and it is not colorless because of its inherent chemical composition and crystal structure. Unlike diamonds, which are made entirely of carbon, moissanite contains other elements such as silicon, which can contribute to its coloration.
Moissanite can exhibit a chameleon-like behavior because of its ability to change color under different lighting conditions. This phenomenon is caused by the gemstone's unique optical properties, which can cause it to reflect different wavelengths of light depending on the lighting source.
Under certain lighting conditions, moissanite may appear to be more yellow or brown, while under other lighting conditions, it may appear more colorless. This is because the gemstone's dispersion, or the separation of white light into its component colors, is higher than that of diamonds, making it more prone to displaying this chameleon-like behavior.
Overall, while moissanite is not colorless and can exhibit chameleon-like behavior, it is still a highly sought-after gemstone because of its beauty, durability, and affordability compared to diamonds.