(Silicon Carbide) Colour Grades

posted 3 years ago in Rings
Post # 4
Member
5445 posts
Bee Keeper

I don’t think FB is anywhere near a K. I’ve read that over at BTD but I think that’s inaccurate, and something Less is trying to promote so people will choose Amora. Actually, most of the FB stones I’ve seen are whiter looking than most amoras. 

The unenhanced moissanite I’ve seen in person was incredibly warm. I don’t know where I would put it on the color scale, but it was almost a fancy light brown. Then again, I saw some unenhanced moissanite in another store that was not brown tinged at all, but very green tinged. Moissanite is kind of a mystery lol! I’ve also seen pictures of unenhanced here that do not look brown or green like what I’ve seen in person with my own eyes. Since color grading is hard to do through pictures, I default to what I’ve seen IRL, but I’m confident there’s a wide variation in quality. 

Post # 5
Member
6880 posts
Busy Beekeeper
  • Wedding: March 2014 - A castle!

@BlondeMissMolly:  +1000 I had a FB cushion as my center stone and it was definitely not yellow at all! A lot of the Amora Moissanites (not AGs) that I’ve seen pictures of look just plain yellow to me.

For my FB, I wouldn’t call it white either.. moissanites do something weird in direct lighting where they actually appear darker, like steely grey. 

I think it has a lot to do with what the BTD forums promote… which I don’t necessarily believe because although they claim a 3rd party color grades their stones I’m pretty sure the “third party” is someone who previously worked for NAGL and no longer does… and grades moissys for BTD exclusively now. I wouldn’t trust what they say over there…

Post # 6
Member
5445 posts
Bee Keeper

@FutureDrAtkins:  I agree. There’s a lot of “I’ll scratch your back if you scratch mine” over there, and it makes if very difficult for the consumer to trust anything. 

Post # 7
Member
6880 posts
Busy Beekeeper
  • Wedding: March 2014 - A castle!

@ChicFoodist:  Sorry I never really answered your question! My 1.4 ct eq FB cushion I would say was probably closest to an H. Maybe an I? I have lots of videos on a thread I started if you click on my name and look at my threads. I hope this helps 🙂

Post # 8
Member
723 posts
Busy bee
  • Wedding: May 2014

Here is my amora moissanite…not familiar with color grading as I didn’t really do much research (because it wasnt important to me, my FI wanted a “whiter” stone!) on color grading. 

Post # 10
Member
6880 posts
Busy Beekeeper
  • Wedding: March 2014 - A castle!

@ChicFoodist:  riduculously sparkly at ALL times pretty sure i burnt dinner a few times staring at my hand

Post # 11
Member
645 posts
Busy bee
  • Wedding: January 2006

@ChicFoodist:  

@BlondeMissMolly:  

@FutureDrAtkins:  

 

The problem with the grading of Silicon Carbides on a diamond scale is the fact that SIC behave differently to diamonds and it would be very difficult to give Moissanite any kind of precise letter grading. For example, in sunlight moissy might look like F, but in the back of the car it might look like K. So how does one grade it? C&C refers to Moissanite as near colourless, with FB being at the top of near colourless range. Older Moissanite used to be greener and yellower, but these days it is improving as the rough from Cree is getting whiter and whiter. The newer generation of FBs are not enhanced but just cut from whiter rough.

The problem with BTD gradings by NAGL is there is a definite concern as to how independent they are. They are not a lab with international reputation in the jewelrey industry like GIA, or EGL or anything like that, and have been doing all the gradings for BTD exclusively for years and happen to be in the same area as BTD as well. Their gradings of Amora Moissanite are highly inconsistent as some people have really yellow Amoras, where as others have whitier ones. Another problem is the fact that the marketing of all their products is based primarily on the putdown of C&C products. And that kind of marketing always looks suspicious to me.

Post # 13
Member
645 posts
Busy bee
  • Wedding: January 2006

@ChicFoodist:  

@FutureDrAtkins:  

I also forgot to answer about my own 6.5mm FB RB, that it is pretty white, H mostly I would say. I never see green or even yellow, it is just looks steelier by the window in overcast weather. I believe my FB is the first generation, enhanced by Serenity. That is a permanent enhancement and not a coating, which is what BTD were trying to say and which is what totally not true.

 

Post # 15
Member
645 posts
Busy bee
  • Wedding: January 2006

@ChicFoodist:  

 

@FutureDrAtkins:  

 

To be honest, I am thinking also there is a trade of between whiteness and brilliance v fire (coloured light return). But another Bee, who is also a member of the TFL (Homeschooling4stars) just got an Amora Moissanite which is blindingly fiery. I think this AM comes from that whiter rough I mentioned that C&C cuts their Moissanite from.

I will post her video here (I hope she does not mind):

http://www.youtube.com/watch?feature=player_embedded&v=Zy-flPdF2kw

Post # 16
Member
6880 posts
Busy Beekeeper
  • Wedding: March 2014 - A castle!

@sparkletiger:  wow never saw her video before! gorgeous!! thanks for posting 🙂 

Honestly, since you can’t really find regular amora moissys now anyways i would just tell anyone to get a FB. I am biased bc that’s what I had, but I was iffy about the color issue before I bought it and I immediately fell in love! BTW, FBs can’t be that bad if BTD still sells them on their site Tongue Out

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