Indicolite (Tourmaline) Gemstones

  • Hardness

    7.0 on the Mohs scale.

  • Occurrence

    Madagascar, North America, Brazil, Myanmar (Burma), Africa, Siberia, Australia, Sri Lanka (Ceylon). Tourmaline and opal are the birthstones of the month of October. Tourmaline is the national gemstone of the United States.

  • Appearance

    Dark blue tourmaline is called indicolite, or indigolite. These are some of the most beautiful and sought after tourmalines.

  • Enhancements

    Green and Blue tourmaline is commonly heat treated to improve color.

    More information on gemstone enhancements.

  • Gemstone Family

    Indicolite is a member of the Tourmaline gemstone family.

Indicolite
Indicolite

TRM363
TRM363
0.14 ct. total
2.5mm Round Cut
Medium Light
Strong Green-Blue
Very Slightly Included
[N] Not enhanced.
Quantity Available: 4 pairs
Indicolite Tourmaline

TRM260
TRM260
2.04 ct.
8.7x6.8mm Emerald Cut
Medium Dark
Vivid Green-Blue
Slightly Included
[H] Heated to improve color.
One of a kind.
Indicolite Tourmaline

TRM353
TRM353
2.34 ct.
10.0x5.4mm Emerald Cut
Medium Dark
Vivid Green-Blue
Slightly Included
[N] Not enhanced.
One of a kind.
Neon Blue Tourmaline

TRM545
TRM545
9.90 ct.
13.5x11.6mm Cabochon, Oval Cut
Medium Dark
Moderately Strong Green-Blue
Slightly Included
[E] Routinely enhanced.
One of a kind.
Indicolite Tourmaline

TRM564
TRM564
0.24 ct.
5.0x3.2mm Cabochon, Oval Cut
Medium Light
Vivid Bluish Violet
Slightly Included
[H] Heated to improve color.
One of a kind.
Blue-Violet Tourmaline

TRM274
TRM274
9.37 ct.
17.9x7.9mm Fancy Cut
Medium Dark
Vivid Green-Blue
Slightly Included
[H] Heated to improve color.
One of a kind.
Indicolite Tourmaline

TRM505
TRM505
6.26 ct.
16.4x7.8mm Emerald, Millenium Cut
Medium
Vivid Green-Blue
Slightly Included
[A] Not normally enhanced.
One of a kind.
Indicolite Tourmaline

TRM506
TRM506
7.80 ct.
23.6x6.8mm Emerald, Millenium Cut
Medium
Vivid Green-Blue
Slightly Included
[A] Not normally enhanced.
One of a kind.
Indicolite Tourmaline