Art Deco platinum, carved emerald and diamond necklace, Mauboussin, France, ca. 1928. Photo Freeman's Auctioneers & Appraisers 

Graduated carved classical figure cameo emeralds, separated by platinum diamond lotus motif links. Signed by the maker, displaying serial no. X4504 with hallmarks. Necklace converts into double matching bracelets and central carved emerald can be worn as a single pendant. L: 17 in., 34.4 dwt. Necklace is in good condition, minor repair to clasp right of the center pendant. Emeralds are in varying condition, minor chipping and cracking is to be expected. Estimate $20,000-30,000 

PROVENANCE: Property of a private collection, Pheonix AZ. 

Note: The platinum links used in the necklace echo similar themes used by important jewelers during the 1920s into the early 1930s. French jewelers such as Cartier, Boucheron and Mauboussin went through periods of Asian, Egyptian and Indian influence. This necklace reminiscent of those periods in both setting style, and gem stone use. 'Fantasy carved' gemstones were popular among jewelers, in emerald, ruby and sapphire and set into pieces such as this, a popular example being the 'Tutti-Frutti' bracelets. Like Belperron and Boivin, Mauboussin did not readily sign every piece produced prior to being purchased by Trabert and Hoeffer, in the early 1930s. 

Art Deco platinum, carved emerald and diamond ring, attributed to Mauboussin, ca. 1928. Photo Freeman's Auctioneers & Appraisers 

Carved emerald cameo prong set, framed on either side by trapziodal pave diamond set shoulders accented by channel set baguette cut diamonds, unsigned. Emerald size: 17.8mm x 17.5mm x 6.5mm. Ring size: 6, 6.2 dwt. Ring is in good condition, minor loss to the bottom edge of the setting (can be seen in images). Emeralds are in varying condition, minor chipping and cracking is to be expected. Emerald is loose in the setting due to the loss explained above. Estimate $1,500-3,000 

PROVENANCE: Property of a private collection, Pheonix AZ. 

Note: The platinum links used in this ring echos similar themes used by important jewelers during the1920s into the early 1930s. French jewelers such as Cartier, Boucheron and Mauboussin went through periods of Asian, Egyptian and Indian influence. The ring is reminiscent of those periods in both setting style, and gem stone use. 'Fantasy carved' gemstones were popular among jewelers, in emerald, ruby and sapphire and set into pieces such as this, the most prolific example being the 'Tutti-Frutti' style bracelet. Like Belperron and Boivin, Mauboussin did not readily sign every piece produced prior to being purchased by Trabert and Hoeffer, in the early 1930s.

 Freeman's Auctioneers & Appraisers. Monday June 4, Noon. Contact: Kate Waterhouse. Phone: 215.563.9275