The Gemius IndexRUB

Ruby

Four market segments for ruby, Entry to Investor. Each shows its price index, market band and an example grade. Refreshed every quarter.

By market segment

Where a ruby lands depends on its origin, colour, clarity, treatment and size.

Entry

Commercial
Price index105.0 1.2% qtr
Q1 2025: 100.0Q2 2025: 101.4Q3 2025: 101.0Q4 2025: 103.2Q1 2026: 103.8Q2 2026: 105.0
Q1 2025Q2 2026
Example grade (e.g.)Thailand / MadagascarStandard redsHeated · SI clarity< 1 ct
Market band$490 to $660 / ct

Mid

Good
Price index110.0 2.3% qtr
Q1 2025: 100.0Q2 2025: 102.8Q3 2025: 102.0Q4 2025: 106.5Q1 2026: 107.5Q2 2026: 110.0
Q1 2025Q2 2026
Example grade (e.g.)Mozambique / MadagascarVS clarityHeated1 – 3 ct
Market band$2,700 to $8,500 / ct

Premium

Fine · Headline
Price index118.0 4.0% qtr
Q1 2025: 100.0Q2 2025: 105.0Q3 2025: 103.6Q4 2025: 111.7Q1 2026: 113.5Q2 2026: 118.0
Q1 2025Q2 2026
Example grade (e.g.)Mozambique / Mogok-style MyanmarVS – VVSUnheated2 – 5 ct
Market band$19,000 to $254,000 / ct

Investor

Extra-Fine
Price index128.0 5.8% qtr
Q1 2025: 100.0Q2 2025: 107.8Q3 2025: 105.6Q4 2025: 118.2Q1 2026: 121.0Q2 2026: 128.0
Q1 2025Q2 2026
Example grade (e.g.)Mogok MyanmarPigeon's bloodUnheated · VVS3 ct +
Market band$375,000+ / 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.