Adam's FINE JEWELLERY & WATCHES 17th May 2022

T uesday 17 th M ay 2022 . S tarting at 4 pm 28 31 AN EARLY 20TH CENTURY DIAMOND PENDANT ON CHAIN, CIRCA 1915 Of openwork foliate design, set with old European and sin- gle-cut diamonds, with millegrain detailing throughout, sus- pending from a fine trace-link chain, mounted in platinum, princi- pal diamonds weighing respectively approximately 0.90ct and 0.25ct, remaining diamonds approximately 0.90ct total, pendant length 4.8cm, necklace length 38.5cm € 1,500 - 2,000 33 AN EARLY 20TH CENTURY DIAMOND AND RUBY DRESS RING, CIRCA 1925 The octagonal plaque centring an old pear and oval-shaped diamond, within a surround of old cushion and brilliant-cut diamonds, accented by a calibré-cut ruby frame, mounted in platinum, diamonds approximately 2.00cts total, French import mark, ring size L¼ € 3,500 - 4,500 The rectangular case, with pastel blue guilloché enamel, the hinged cover cast with gold laurel leaves and centred with a silver coat of arms (possibly later addition), to a sapphire cabochon clasp, smaller compartment opening to reveal a match compartment and strike panel, the gilt interior engraved with Cyrillic surnames, struck with marker’s mark 3rd Artel and 88. standard (zolotniks) in Cyril- lic, length 11.2cm, width 6.5cm € 3,000 - 4,000 The Kokoshnik mark, a womans head in traditional headdress, the head faces to the right and the Greek letter alpha after 1908, St Pe- tersburg assayer Alexander Romanov (working dates April 1904- 1912) or Konstantin Soloviev (working dates 1913-1917). The three columns of surnames listed on the inside of the lid may relate to the individuals who commissioned the piece as a possible retirement gift. The Third St. Petersburg Cooperative, or Artel was a group of about thirty artisans who occasionally carried out work for the House of Faberge. It was active between the years 1908-1917, producing a range of decorative items such as guilloché enamel objects, miniature Easter eggs; card and cigarette cases in varying shades of pastel and opalescent white.The Artel also created gold chased objects designed using the technique en quatre-couleurs which solder multiple colours in layers. It is possible that the pres- ent example was retailed by the House of Fabergé. Located at 48 Ekaterininskii canal, the Third St Petersburg Artel also occasionally did work for the Imperial Family. In 1915, its head wasVasilii Nikolaevich Ivanov. 32 AN EARLY 20TH CENTURY PEARL AND DIAMOND BAR BROOCH The central button-shaped pearl of cream tint measuring approx- imately 5.88mm, highlighted with a rose-cut diamond surround and between similarly-cut diamonds, finishing with old bril- liant-cut diamond terminals, mounted in platinum, diamonds approxi- mately 1.00ct total, width 7.9cm € 800 - 1,000 34 A DIAMOND AND ENAMEL REGIMENTAL SWEETHEART BROOCH, CIRCA 1900 An enamelled crown above intertwined monogram set with single-cut diamonds, mounted in gold and palladium, length 2.7cm € 600 - 800 34A A RUSSIAN SILVER GILT AND GOLD CIGARETTE CASE, BY THIRD ARTEL, ST PETERSBURG, 1908-1917 34A