Figure 1. Fine emerald (>60 ct) and ruby (13 ct) crystals…
https://www.icia.uk/wp-content/uploads/2024/10/FA24-GNI-Fig1AB-327878-1280px-jpg.avif7201280ICIA Media Centerhttps://www.icia.uk/wp-content/uploads/2026/11/icia-logo-600-250.avifICIA Media Center2024-07-02 00:00:002024-12-02 06:39:30Gemfields Emerald and Ruby Auctions