Yellow Green with a brown cast, Large round#901

Large Brownish Yellow Green Round This 23.19 carat modified round is clean and bright and has a classic brownish yellow green color that is not dichroic.

 

Over the years that I have cut tourmaline, this is the only one that I purchased preformed (for greatness?).  When you’re trying to get the widest collection of color in tourmaline, you have to seek out exceptional pieces that don’t have exceptional color.  This is an example of an exceptional tourmaline at a finished weight of 23.19 carats with a flawless body and an appropriate level of tone while having a less than desirable brownish cast in its color.  I would say that the color is a pretty classic tourmaline color, but it is not dichroic, which helps make the gem very transparent and consistent in color.

The gemstone has a deep crown, that is a modified step cut.  When this simple crown is combined with a standard round brilliant pavilion, I find it makes a very bright gemstone.  In this case the modified step cut let me adjust the crown thickness to fit the preform, saving weight and helping making the gem as rich in color as I could make it.

 

Bruce

About Bruce Fry

I was born in Summit, NJ in 1947 and graduated from Summit High School in 1966. I graduated from the Colorado School of Mines in 1970 and after spending another year in graduate school, I left to see the world of Brazil. After spending some more time discovering myself, I ended up working for the Commonwealth of Pennsylvania for 32 years as an Air Quality Engineer in the Department of Environmental Protection. I retired in 2007 and took up faceting gemstones again after a long hiatus that reached back to my twenties. I had started cutting cabochons when I was 13 and bought my first faceting machine when I was 15, but ran out of money and time until I retired.
My great love in gemology is tourmaline and the collection presented here represents my effort to get as much beauty and variety in the colors of tourmaline as I can. I was particularly lucky in being able to get unheated cuprian tourmaline before copper was discovered in gem grade tourmaline from Mozambique.

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