Tourmaline Value

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Brazilian Cuprian (Paraíba) Tourmaline

0.20-0.99 carat
Low
- / ct
Average
- / ct
Good
+ / ct
Great
- / ct
Superb
- / ct
1.00-1.99 carats
Low
- / ct
Average
- / ct
Good
- / ct
Great
- / ct
Superb
- / ct
2.00-2.99 carats
Low
- / ct
Average
- / ct
Good
- / ct
Great
- / ct
Superb
+ / ct
3.00-4.99 carats
Low
- / ct
Average
- / ct
Good
- / ct
Great
- / ct
Superb
+ / ct
5.00+ carats
Low
+ / ct
Average
+ / ct
Good
+ / ct
Great
+ / ct
Superb
+ / ct

African Cuprian (Paraíba) Tourmaline

0.20-0.99 carat
Low
- / ct
Average
- / ct
Good
- / ct
Great
- / ct
Great
- / ct
1.00-2.99 carats
Low
- / ct
Average
- / ct
Good
- / ct
Great
- / ct
Great
- / ct
3.00-4.99 carats
Low
- / ct
Average
- / ct
Good
- / ct
Great
- / ct
Great
- / ct
5.00-9.99 carats
Low
- / ct
Average
- / ct
Good
- / ct
Great
- / ct
Great
- / ct
10.00+ carats
Low
- / ct
Average
- / ct
Good
- / ct
Great
- / ct
Great
- / ct

Indicolite - Fine Color Blue: B 5/4

.4 to 2 carats
Faceted
to /ct
Cabochons
2 to 10 plus carats
Faceted
to /ct
Cabochons
to /ct

Rubellite - Fine Color Red: R, slpR 6/5

.5 to 1 carat
Reds
to /ct
Pinks
to /ct
1 to 5 carats
Reds
to /ct
Pinks
to /ct
5 carats plus
Reds
to /ct
Pinks
to /ct

Chrome - Fine Color Green: vstbG, BG, vslbG 5/4

.5 to 1 carat
Chrome
to /ct
1 to 5 carats
Chrome
to /ct

Other Greens

.5 to 2 carats
Other Greens
to /ct
2 to 5 carats
Other Greens
to /ct
5 carats plus
Other Greens
to /ct

Other Tourmaline Types

Other Tourmaline Types

.5 to 1 carat
Fancy Colors- Yellow - Orange (Top Color Orange: O 4/5) - Purple
to /ct
Watermelon
to /ct
Other Multicolor
to /ct
1 to 5 carats
Fancy Colors- Yellow - Orange (Top Color Orange: O 4/5) - Purple
to /ct
Watermelon
to /ct
Other Multicolor
to /ct
5 plus carats
Fancy Colors- Yellow - Orange (Top Color Orange: O 4/5) - Purple
to /ct
Watermelon
to /ct
Other Multicolor
to /ct

Cat’s Eye

.5 to 1 carat
Cat’s Eye
to /ct
1 to 5 carats
Cat’s Eye
to /ct
5 plus carats
Cat’s Eye
to /ct

Other Cabochons

1 to 5 carats
All Colors
to /ct
5 plus carats
All Colors
to /ct
View Paraíba Tourmaline Profile

The International Gem Society (IGS) has a list of businesses offering gemstone appraisal services.

Ready availability keeps tourmaline prices reasonable. Small tourmalines (under 5 carats) are fairly easy to obtain at modest cost. Only when you get into large sizes or extremely rare or fine colors do prices go over a few hundred dollars per carat.

Most colors are fairly common, but pure blue, red, orange, yellow, and purple stones are rare. Such stones usually command higher prices. Color-change tourmalines are also exceptionally rare. Neon-blue paraíba tourmalines, raspberry-red rubellites, and emerald-green chrome tourmalines are especially prized.

orange tourmaline - Africa

7.73-ct orange tourmaline, Africa. © All That Glitters. Used with permission.

Tourmaline crystals are often cracked and flawed, which puts a premium on clean gemstones, especially those over 10 carats in weight. Generally, the only acceptable types of inclusions in cut tourmalines are the tubes that, when densely packed, produce a cat’s eye effect in cabochons. The “eye” in a cat’s eye tourmaline can be very strong, especially when set against a richly colored gem.

bi-color cat's eye tourmaline

Unusual blue-and-pink bi-color tourmaline with a very sharp cat’s eye, 0.93 cts. (Colors in photo not accurate). © All That Glitters. Used with permission.

For more information on tourmaline quality factors, see our buying guides for tourmalines in general as well as engagement ring stones.

You may also wish to consult the following articles for information on specific varieties:

cushion-cut tourmaline - Afghanistan

11.30-ct, cushion-cut, bright green tourmaline, the Kunar Valley, Afghanistan. © All That Glitters. Used with permission.