Main stone: 2.20ct Natural Tourmaline, Very Dark Forest Green, octagon cut, 7.92x6.87mm, IF clarity grade, stone mined region Brazil
Other stones: 4pcs Natural white sapphires

Metal: choose the metal
Item dimensions: depend on ring size

More about main stone:
Birthstone: January, February, March, April, May, September, October, November 
Zodiac: Aquarius, Pisces, Aries, Libra, Scorpio