Related, not identical

Jadeite ranges from opaque to semitransparent. Fine grain can support a smooth surface and bright polish, yet transparency also depends on inclusions, fractures, thickness and internal scattering. A fine texture does not guarantee identical transparency across a piece.

Polished Olmec jadeite celt-pendant, The Metropolitan Museum of Art
Open Access object image, The Metropolitan Museum of Art; public domain.

Observe thickness fairly

A thin edge transmits more light than a thick center. Comparisons are meaningful only when thickness, lighting and background are reasonably similar. Backlighting can reveal internal variation but may exaggerate brightness and should not be confused with ordinary wear appearance.

Emerald-green jadeite pendant from Qing-dynasty China, The Metropolitan Museum of Art
Open Access object image, The Metropolitan Museum of Art; public domain.

Surface and interior

A clean polish gives reflections clear edges. Diffuse or distorted reflections may relate to surface finish, curvature or underlying structure. Use a loupe for observation, not as a substitute for a laboratory conclusion.

Maya jadeite pendant with seated lord, The Metropolitan Museum of Art
Open Access object image, The Metropolitan Museum of Art; public domain.

Research basis

Independently written from public information supplied by GIA, Smithsonian and The Metropolitan Museum of Art. GIA · Smithsonian · The Met