Italian Retro oval “Buckle” ring, 18K gold with a Florentine finish, marked, c. 1940’s
TAPIO WIRKKALA (1915-1985) Finland
NILS WESTERBACK Finland
Pendant Necklace 1970
Lap-gold (18K gold or higher) pendant head with a rigid necklace
Makers: Tapio Wirkkala and Nils Westerback
Marks: 750, three crowns symbols
Model illustrated in: The Art of Jewelry, Graham Hughes (New York: The Viking Press, Inc., 1972), p. 135; Scandinavian Design, Charlotte and Peter Fiell (Köln: TASCHEN, 2002) p. 675; Marianne Aav, Rosa Barovier Mentasti and Gordon Bowyer, et al., Tapio Wirkkala – eye, hand and thought, exh. cat., Museum of Art and Design, Helsinki, 2000, p. 194, fig. 342 and p. 370
Verdura ring, highly textured 18K gold set with teardrop shaped turquoises and a convex center of pave diamonds, marked
Jean Schlumberger for Tiffany & Co. “Berry brooch” 18K yellow gold set with 40 oval cut demantoid garnets (approx. 9 carats TW /G.I.A. certificate) and 7 small oval cabochon Persian turquoise stones, Signed: Tiffany, Schlumberger, 18K, c. 1968
Illustrated: (“Bejewelled by Tiffany 1837-1987”, Clare Phillips, page 279 (Vintage Tiffany Blue Book 1968-1969, ruby version of this brooch priced at $1,475)
French Art Deco “Heptagon” clip / brooch set with a large fancy cut madeira citrine and 8 baguette madeira citrines all set in 18K gold, signed GA in a diamond French touch mark, French Eagle’s head mark for 18k gold, c. 1935
***Top quality gem blue zircons over 10 carats trade at a minimum price of $200 per carat and go up from there depending on the size of the stone and the quality of the color. Blue zircon, the most popular color, is produced by heat treatment of brown zircon. But not all brown zircon will turn blue when heated; only some zircon has the right physical structure for this to occur. This is why most blue zircon comes from certain sources in Cambodia or Burma. Blue zircon is a reasonably hard gem with a Mohs hardness of about 7 to 7.5. Blue zircon has some unique properties that make it very popular with gemstone aficionados. Not only does zircon have outstanding brilliance, but it also has very strong dispersion or fire, the tendency to split white light into the spectral colors. Zircon also has very pronounced birefringence or double refraction, with a wide variance between the two refractive indices. This can be often be observed with the naked eye when you look down through the table of a cut zircon; you will observe facet doubling that makes the facet edges appear blurred.
Length: 50 inches Width of the turquoise beads: 3/8 of an inch
Weight: 2.01 Troy ounces TW / 62.6 grams / 40.3 pennyweights