Fine Orange Standard Round Brilliant#950

Nice 2 carat standard round brilliant with sharp orange color. This orange tourmaline does not go too brown and is eye clean. It also does not go pink and weighs 2.05 carats.

One of the reasons that I got back into faceting after a many year hiatus was my love of color.  I looked over the “new” world of the internet and decided that if I ever wanted to collect gemstones with outstanding color, I would have to cut them myself and tourmaline was the natural choice.  I still cut a variety of stones the next five years or so before focusing on tourmaline.  The two colors in the color wheel I most wanted in my growing tourmaline collection was a great orange and purple (particularly blue purple).  Now I am not talking about golden oranges and reds that have a purple c axis.  I mean citrus orange and a fine spinel to amethyst purple.  The result of that quest for those colors and the complete color wheel brought forth this collection that I am writing about, to share with you.

This clean standard round brilliant cut tourmaline is a nice orange.  It is dichroic, but not a golden orange or one that has a brownish cast.  Oranges have a tendency to desaturate into brownish orange under many lighting conditions and those stones I would call dravite and are relatively common.  This round has an even color because it was cut with the table perpendicular to the c axis ( looking down the end of the pencil-like crystal to see the c axis color).  I just check the gemstone to see if it shifted into a pink world, but it seems stable.  I have found a number of orange/pinks that change color in my opinion and even some for sale on the inter net.  But I have never read an article on this interesting phenomenon.  It is one color phenomenon that I would like to investigate with my spectrometer when I get a proper light source for it.  The posted stone weighs 2.05 carats

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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