zeolite
Brilliant_Rock
- Joined
- Aug 13, 2008
- Messages
- 619
This will be a rambling series in response to “what do you dislike?” This is not to criticize anyone’s tastes or preferences. It will just show examples that might change your mind.
“most indicolites … - cause they're usually too dark and lack depth of color”. I’m a bit reluctant to show this picture – read on.
I absolutely love blue tourmalines (indicolites). I have 8 in my collection. Here’s why: What are your choices in blue gems? aquamarine, blue topaz, sapphire, tourmaline, tanzanite, iolite, zircon.
Even the finest aquamarine is pastel in tone, with some gray, and low saturation. Swiss blue topaz actually has a pleasant color, but is a man enhanced gem – not rare. While some exceedingly rare blue sapphires can be stunning, most are not of that quality. Many are too dark, and paler, more pastel ones show low color saturation. I was once offered a 3 ct kashmir sapphire 25 years ago- $30,000 wholesale for the stone! I didn’t take it, and still remember it clearly and fondly today.
Tanzanite, in the finest color saturation, and when properly oriented (cut in the blue direction), is a fabulous blue gem. Iolite has such a strong gray cast that it turns me off. Some fine blue zircons have fine color saturation, and are quite attractive.
Blue tourmaline needs to cut very carefully to bring out its finest color saturation, and still be brilliant. The crystals need to selected carefully, and possibly undergo multiple recuts to get the proper balance of saturation and brilliance. Of my 8 blues, about 4 were cut multiple times (one was cut 3 times). Blue tourmalines always have a secondary green hue, while sapphires and tanzanites have a secondary purple hue, so the blue is different. Yet when a blue tourmaline is placed next to a green tourmaline, it is clearly blue.
In summary, I can get a finer saturated blue color in a tourmaline, than any other gemstone, as long as I stay below $60,000 per stone. Below is one of my two finest blue tourmalines, 2.38 ct, opposed bar cut. As hard as I try in Photoshop, I can’t get the picture to match the color of the actual gem. It is MUCH more saturated than it shows here.