Inputs you can inspect
Every output changes in response to visible controls. No hidden “AI score” and no email gate.
Actual-size simulator
Calibrate your screen, compare 5–20 mm pearls on an ear, and understand what each size feels like in real life.
Embed this tool8 mm feels modern classic. A versatile scale that reads clearly without dominating.
Preview is approximate until the screen is calibrated.
Transparent by design
Every output changes in response to visible controls. No hidden “AI score” and no email gate.
Pearl size is assessed in millimetres and compared within pearl type.
GIA Pearl Quality FactorsThe result helps you ask better questions. It does not replace a physical inspection, laboratory report or final fit check.
Plain-language answers
Around 7–8 mm is a classic everyday range. Smaller pearls tend to feel subtle; 9–10 mm reads more statement-like. Your proportions and taste matter more than a universal rule.
It is after you calibrate the screen against a standard bank card. Without calibration, the preview uses a normal screen-density estimate and should be treated as approximate.
Round pearls are normally described by diameter in millimetres. Non-round pearls may be listed with two or three dimensions.
From learning to choosing
Explore pieces selected by pearl type, colour and size at The South Sea Pearl.