Entry
CommercialPrice index105.0▲ 1.2% qtr
Q1 2025Q2 2026
Example grade (e.g.)Sri Lanka / VietnamMauve / pale pinkSI clarity · Unheated< 1 ct
Market band$390 to $520 / ct
The Gemius IndexSPI
Spinel
Four market segments for spinel, Entry to Investor. Each shows its price index, market band and an example grade. Refreshed every quarter.
By market segment
Where a spinel lands depends on its origin, colour, clarity, treatment and size.
Mid
GoodPrice index118.0▲ 4.0% qtr
Q1 2025Q2 2026
Example grade (e.g.)Burma / TanzaniaSaturated pink / orangeVS clarity1 – 3 ct
Market band$2,500 to $3,700 / ct
Premium
Fine · HeadlinePrice index124.0▲ 5.1% qtr
Q1 2025Q2 2026
Example grade (e.g.)Burma Mogok / MahengeVivid red / cobalt blueVVS clarity2 – 5 ct
Market band$6,200 to $12,000 / ct
Investor
Extra-FinePrice index133.0▲ 6.6% qtr
Q1 2025Q2 2026
Example grade (e.g.)Mahenge / Jedi (Mogok)Vivid neon red / hot pinkVVS · Unheated5 ct +
Market band$16,000+ / 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.
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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 corundumSunstoneAventurescence · OregonTanzaniteZoisite · Tanzania onlyTopazImperial · BrazilTourmalineMulti-color · elbaiteZirconHigh dispersion · Cambodia