Necklace convertible into yellow gold, coral, chrysoprase and diamonds

Set from the 1970s comprising two bracelets and a clip in yellow gold carats
The two bracelets, each featuring stylized lions alternating with oval-shaped angel-skin coral cabochons set with diamonds brilliant-cut stones, form a choker necklace when assembled.
The clip featuring two opposing lions' heads, adorned with diamonds brilliant-cut, angel-skin coral and chrysoprase cabochons, can be added to the set to form a pendant.