Entry
CommercialPrice index104.0▲ 1.0% qtr
Q1 2025Q2 2026
Example grade (e.g.)Brazil / Nigeria / AfghanistanMixed varietiesSI clarity · Heated< 1 ct
Market band$30 to $150 / ct
The Gemius IndexTOU
Tourmaline
Four market segments for tourmaline, Entry to Investor. Each shows its price index, market band and an example grade. Refreshed every quarter.
By market segment
Where a tourmaline lands depends on its origin, colour, clarity, treatment and size.
Mid
GoodPrice index115.0▲ 3.4% qtr
Q1 2025Q2 2026
Example grade (e.g.)Brazil / MozambiqueVerdelite / Indicolite / RubelliteVS clarity1 – 5 ct
Market band$200 to $1,500 / ct
Premium
Fine · HeadlinePrice index140.0▲ 7.7% qtr
Q1 2025Q2 2026
Example grade (e.g.)Mozambique Paraíba / Tanzania chromeVivid saturationVVS clarity2 – 10 ct
Market band$2,000 to $20,000 / ct
Investor
Extra-FinePrice index155.0▲ 9.8% qtr
Q1 2025Q2 2026
Example grade (e.g.)Brazil Paraíba (original)Neon copper-bearingVVS · Unheated3 ct +
Market band$30,000 + / ct
Price index base 100 at Q1 2025. Market band is the per-carat range across the segment. Example grades are illustrative, not an offer to buy or sell. As of Q2 2026.
Other gems
See the market data for any other species we cover.
Scroll horizontally →
AlexandriteColor change · RussiaAmberOrganic · BalticAmethystPurple quartz · UruguayAmetrineBicolor quartz · BoliviaAquamarineBeryl · blueCitrineYellow quartzEmeraldBeryl · ColombiaGarnetMulti-variety · pyrope to demantoidIoliteCordierite · pleochroicJadeiteImperial green · MyanmarKunziteSpodumene · pinkMoonstoneAdularescence · feldsparMorganiteBeryl · pinkOpalPlay of color · AustraliaPeridotOlivine · PakistanRubyHardness 9 · red corundumSapphireHardness 9 · blue corundumSpinelHardness 8 · unheatedSunstoneAventurescence · OregonTanzaniteZoisite · Tanzania onlyTopazImperial · BrazilZirconHigh dispersion · Cambodia