This week’s blog is an evaluation of a 3.21ct Mahenge spinel that I did for a client recently. The stone was brought in from Mayer & Watt, a wholesale dealer where the advertised MSRP is $5,256/carat. The following is a direct copy and paste of my email.
It is always interesting to see how different stones look when up against other stones of similar colors. For this pear, I pulled out the large Mahenge reddish-pink cushion I have, the small Burmese pink-red, a red-red oval, my red spinel band, and my pink-pink Mahenge spinel. So this one is interesting because up against the more pink stones, it looks more red, and when it’s up against a red red, it looks pink. Overall it’s strongly saturated, medium in tone, with the slightest hint of orange when compared to pinks that are more blue-toned.
My biggest concern going into it was the inclusion. As I think I mentioned in a message I sent you earlier, in some lighting situations, it’s more obvious than in others. Right now it’s about 18 inches from my face, and even though I know where it is, I have difficulty finding it. I think that it would be very close to where a prong would sit to hold it, so once set, it may become even less obvious. I just put it under 14x magnification and it looks as though there is a cluster of 3 bubble inclusions, which are typical for the Mahenge location. They don’t pose any problems for setting, they don’t even come close to reaching the surface. The largest one has a slightly larger cloud around it that’s typically not visible except when backlit, which I have attached a picture of. They are all clear or white inclusions, probably a negative crystal inclusion and two gas bubbles. Even with the three inclusions, I would say that this is a very clean example of Mahenge material.
You had asked about zoning earlier. There isn’t any zoning, but as is pretty typical with pear and marquise cuts, the color tends to concentrate on the tips, as a result of the cut. This one is actually pretty evenly colored, with just a slightly deeper color on the tip. As far as cut, this is a really well cut pear. There isn’t any windowing, and there isn’t an abnormal amount of tilt windowing. If anything, I’d say that there is less than the typical amount of tilt windowing. There does not appear to be any bow-tie or large amount of extinction.
It glows a bright red under UV light.
Overall I’d say it’s a pretty exceptional stone. The only hesitation I would have would be the inclusion, but that’s really a matter of personal preference – I’m ok with inclusions so long as they aren’t detrimental to the overall look of the stone.