Antique miniature ring set in a rose cut diamond setting

A unique antique ring with a portrait of a lady, a gold and diamond miniature ring. The setting is rose gold in colour with flounces in gold punctuated with tiny diamond sparkles. The miniature is well executed with a delicate mystery to the portrait.

Markings and measurements:
The ornate border of the miniature is set with nine rose cut diamonds. Ring is size M, 6.75. Tests above 18kt gold. Weight of ring 4.3 grams.

Condition:
The ring is in very condition given its age.

Additional information:
Each piece is presented in a velvet gift box, tied with a ribbon. I include a short jewelry assessment that details hallmarks if present & measurements.