6.5 mm cushion cut (becuse of the different proportions of the cut, a 6.5 mm cushion is equivalent to a 1.3ish carat diamond in size, but faces up similarly to a 1-carat RB) Forever Briliiant on my 5.25 finger.
I absolutely love it, but it does not look exactly like a diamond (I have some diamond jewelry I’ve been gifted over the years for comparison, and I tried on a number of diamond rings while I was contemplating styles, sizes, and cuts).
I’ve heard moissanite described as “moody” and I think that’s an excellent way of putting it- it looks so different in different lighting. I love all its moods, and it’s constantly catching my eye with changes.
In certain lighting, especially my bathroom and bedroom, it’s almost like a prism- it fires rainbow flashes in every direction and you can’t NOT notice it. That is the time it looks least like a diamond in my opinion- diamonds simply don’t have that brilliance and fire (this is not a matter of opinion, it’s measurable) but it’s also, in my opinion, stunningly beautiful. I catch myself staring at my hand, transfixed, while brushing my teeth.
In shaded/indirect sunlight (for example, in the car) it does have what I think people are describing as “transparency”- with less direct light, there is less fire so you can see “through” the stone more easily. This also is the time I notice a faint tint to it- it’s a FB so it’s relatively white, but it still has warmth. It’s most noticeable from the side, and I have a very open four prong setting so especially when driving and seeing it from the side through the girdly, I can easily see the warmth. It is very clear with no inclusions, so you can really see through the stone when there is less light to refract, and I do have a cushion cut, which sacrifices some brilliance for shape. This might be less the case in a round brilliant cut, however, as that is the cut that maximizes refraction.
In bright sunlight, it’s very brilliant- tons of scintillation and fire. It’s also surprisingly fiery in the dark when it catches a bit of light- I’ve noticed it flashing in the parking lot on my way out of work after dark, when I walk near the street lights. Under typical flourescent/halogen lighting in my workplace and stores, it has quite a bit of fire and brilliance, more than a diamond or a white sapphire, but less than in those perfect storm lighting situations that turn it in to a rainbow disco ball.
Seconding the PP who said it seems to stay cleaner longer than other stones- I work in health care and I alcohol foam/gel, wash, and moisturize my hands a zillion times a day, and all it takes is a quick wipe with a cloth and it’s back to brilliance. When it hasn’t been cleaned after a shift, it still has a bit of brilliance, but the rainbow fire disappears. I’ve heard similar comments from a friend who has a moissanite engagement ring and several other gemstone right hand rings- when I was contemplating getting a moissanite vs another gem, she said that despite getting her hands dirty all day long, the moissanite stayed bright while the others needed regular cleanings to shine. I’ve read that this has to do with the chemical composition of the stone, which makes it less attractive to dirt.
The type of light strongly affects what kind of effect the stone has, but I’ve never seen it in a light where I didn’t think it was beautiful. If I ever buy any more white stone jewelry, it will certainly be moissanite. I encourage you to find one to see in person before you buy (I had seen my friend’s moissy engagement ring and knew I loved it), but I think you’ll be pleased- it’s just so freaking pretty!