I recently acquired this parcel of stones which is 94% Zambian emerald. It includes (by my standards anyway), quite a number of stones I consider to be large emeralds. The one I have questions about in this post is the one at the far upper left of the group. It’s pretty much a long rectangle as you can see, and it weighs 13.62 carats. It has very good color and clarity, and the junk on the outside is very much limited into the surface.
I’m hoping that some of the members with far more experience than myself can answer a couple of questions, and offer some advice. First question is, can a faceting diagram intended for a 1.54 refractive index be used on Emerald without making changes?
Next, I’ve read many times that typical emerald cuts do a good job of maximizing the finished stone weight, but do a terrible job of enhancing the brilliance of the finished stone. Do you agree with this? This piece of rough has a 1.6 to 1 L/W ratio, and very good depth. Can someone please recommend a possible faceting design for this Stone which would maximize its value?
Thank you for any help you can provide.
PS: if anyone is interested in some of these emeralds, or any of the many other stones I have, including sapphire, spinel, tanzanite, tourmaline, ruby, and many colors of garnet, feel free to contact me.