10/06/2026
In gemstone trade, calibrated sizes refer to stones cut to standard dimensions so they fit commercial jewelry settings consistently.Common calibrated sizes for faceted garnets
Shape Popular calibrated sizes (mm)
Round 2.0, 2.5, 3.0, 3.5, 4.0, 5.0, 6.0, 7.0, 8.0, 10.0
Oval 4×3, 5×4, 6×4, 7×5, 8×6, 9×7, 10×8, 12×10
Cushion 4×4, 5×5, 6×6, 7×7, 8×8
Pear 5×3, 6×4, 7×5, 8×6, 10×7
Emerald/Octagon 5×3, 6×4, 7×5, 8×6, 9×7, 10×8
Marquise 6×3, 8×4, 10×5, 12×6
# Faceted # calibrated size