The holder may be silver plate over copper. The vase does not come out of the holder. In some light the glass appears to be a bright purple, in others a dark purple. The logo made us think it was.
Lambert, but in researching the logo, it appears this logo is attributed to Cristalleries de Sevres. Size: top 1 7/8 square; 6 tall. Condition: glass - 2 fleabites top edge, possibly a tiny chip at one corner - there is gold over the area; light wear to silver metal - tiny areas of copper color showing - see pics.The item "Signed Cameo Glass Cristalleries de Sevres French Art Nouveau Vase Silver Holder" is in sale since Wednesday, January 15, 2020. This item is in the category "Pottery & Glass\Glass\Art Glass\French\Other French Art Glass". The seller is "hrac616" and is located in Norfolk, Virginia. This item can be shipped worldwide.