https://gem-spectrum.com/2026/11/11/carved-colombian-emeralds-a-mughal-masterpiece-by-rui-galopim-de-carvalho/ 2026-11-11T04:25:28Z Gem Spectrum print & digital jewelry magazine en Carved Colombian Emeralds: A Mughal Masterpiece - by Rui Galopim de Carvalho 2026-11-11T03:14:40Z Blog https://gem-spectrum.com/2026/11/09/intaglio-the-ancient-art-of-gem-engraving-by-rui-galopim-de-carvalho/ 2026-11-09T13:57:45Z Gem Spectrum print & digital jewelry magazine en Intaglio: The Ancient Art of Gem Engraving - by Rui Galopim de Carvalho 2026-11-09T13:56:15Z Blog