Catalog: Estate Jewelry (1615)

An exceptionally fine, heavy 18K yellow gold bracelet by Pierre Baltensperger. Each of the plaques represents a different flower, depicted in semi-abstract ways. Among the flowers are daisies, cyclamens, fuschias, morning glories and honeysuckle. Baltensperger was founded in 1878 by Walter Baltensperger, who quickly established the firm’s luxury reputation. His grandson Pierre Baltensperger assumed the lead in 1950. Pierre, born in 1927, became one of Switzerland’s most important sculptors and visual artists, in addition to his work with jewelry. This design, though similar in some respects to Georg Jensen’s work from the 1920s, likely dates to the late 1940s. The clasp is signed “Baltensperger” and has 18K marks and inventory numbers.

Origin: Zurich, Switzerland, ca. 1947. Dimensions: 5/8” x 7-5/8”. Weight: 40.0 gr.

A rare pair of mid-century haute couture cufflinks by Pierre Cardin. Each face comprises a carved jadeite bead simply mounted on a gold post. The backs are slightly arched gold bars. The jadeite beads are carved in a floral pattern and are done so in a way that they are carved completely through from one side to another. It’s likely that the cufflinks were constructed from an antique strand of jadeite beads. The jade has noticeable mottling in natural, strongly saturated shades of dark, medium and light green. The translucency is fair. Magnification and absorption spectra show no signs of dye. The connectors are signed “Pierre Cardin†and are fully hallmarked with French 18K marks. Pierre Cardin designed a very limited line of fine jewels in the 1950s and 60s. They were sold only at the couturier’s main store and are quite difficult to find now. Origin: Paris, ca. 1960. Condition: excellent, all original, no cracks or chips. Size: 1/2†diameter. Weight: 10.4 grams.

A magnificent vintage platinum brooch formed as a floral bouquet featuring three primary blossoms tied at the bottom with a ribbon, and set with a mix of old single cut, old Swiss cut, old European cut, old mine cut, early modern brilliant round cut and French cut diamonds and round brilliant cut sapphires. The center flower features a .83-carat, old mine cut diamond of fancy cognac color and SI2 clarity; surrounded by sapphires. A flower bud is represented just above by a prong-set .34-carat old European cut diamond of fancy light cognac color and VS2 clarity. Leaves are bead-set with mixed cut white diamonds, all in the E-G color range with VS1 to SI2 clarity. Berries are represented by collet-set blue sapphires. The sapphires display P2B zone 30 color (moderate purplish blue) on the Gem Dialogue scale and have VS clarity. The hinged double pinstem is worked in 14K white gold, but the body of the brooch is tested and guaranteed platinum.

The range of different diamond cuts in this brooch clearly indicates it was specially made to order for a customer using the diamonds already in her possession. Such commissioned pieces are often not fully hallmarked, hence the lack of a mark for platinum or a maker's mark. The quality of workmanship is superb.

The brooch is accompanied by a June 2008 written appraisal (GIA & NAJA) conforming to the above description and assigning a replacement value of $16,500.

Origin: America, ca. 1950. Condition: excellent, all original. Size: 2" x 1-1/4". Weight: 16.3 gr. Approximate Total Gemstone Weight: diamond, 1.84 carats (1.17 carats of fancy colored diamonds); sapphire, 2.1 carats.

A very fine pair of platinum, diamond and aquamarine earrings in a classic Art Deco style. The brilliant round-cut diamonds graduate from .20 ct at the top to .30 ct at the bottom. The diamonds are finely matched at H color, VS1 to VS2 clarity, with good to very good cut. The brilliant oval-cut aquamarines have fine color color, very good brilliance and SI clarity. The aquamarines are unheated. Each gemstone is set in a fully articulated mounting with a pierced gallery. The earrings have screw posts. Tested and guaranteed platinum.

Size: 1-3/4" long. Total Gemstone Weight: diamond, 2.52 carats; aquamarine, 3.52 cts. Weight: 9.0 grams.

A nice pair of sterling silver cufflinks with an subtle Art Deco engraved floral motif. The solid connectors are joined to hinged backs. Each connector is stamped with Polish sterling marks and an unidentified maker's mark.

Origin: Poland, ca. 1986 (the pattern is likely from the 1920s). Condition: excellent; sharp detail; unpolished. Dimensions: 13/16" x 1/2". Weight: 10.6 gr.

An elegant pair of 19K yellow gold "Contas de Viana" earclips. The domes are covered with concentric circles of ropetwist appliques in the ancient Etruscan style. The clips are stamped with older Portuguese hallmarks for 19K.

Viana beads were modeled on ancient Etruscan jewels found in archaeological sites in Portugal. The circular patterns of filigree and granulation were thought to resemble the eyes of a partridge, bringing luck and protection. A Portuguese girl received her first bead from her godmother at birth. Whenever the family could afford it, another bead was added to the collection with the goal being to create a complete necklace—a circle of protection and good luck—in time for her marriage.

Origin: Portugal, ca. 1950. Condition: excellent, no dings. Dimensions: 7/8" diameter. Weight: 9.9 grams.

A very handsome Retro bracelet worked in rose and yellow gold links enhanced with engraving in a snakeskin texture. The color contrast is very attractive, and the links are made in such a way that the bracelet drapes very nicely on the wrist. The box clasp is stamped with Italian gold marks of the period and the goldsmith’s registry number 1 TO for Antica Ditta Marchisio (now Mattioli Gioielli). Founded in 1860, the house is the oldest jeweler in Torino, Italy, and was a maker for several luxury jewelry houses including Cartier.

• Origin: Italy, 1934-40
• Condition: excellent
• Dimensions: 11/16” wide; 8-3/8” long
• Weight: 53.6 grams

A pair of vintage sterling silver cufflinks by Hermes. The double baton faces are engraved in a tree bark motif and are connected by chains. Each cufflink is signed “Hermes†and bears appropriate French silver marks. They are also stamped with the silversmith’s hallmark. This is an early design that hasn't been in production in 80 years or more.

Origin: France, ca. 1930. Condition: cufflinks, excellent; box, excellent. Dimensions: faces, 13/16†long. Weight: 14.9 gr.

A very good pair of 18K yellow gold cufflinks by Alfred Dunhill. The faces resemble branches of coral. Dunhill produces the vast majority of its cufflinks in sterling silver and the 18K gold versions are very rare. The coral design, in general, is hard to find because it was made for only a short time around 2005. The cufflinks are constructed with the connector set off-center, so the link lies flat against the cuff. The toggle back is Dunhill’s classic small toggle with the company’s insignia. The connectors are fully stamped with English convention hallmarks for 18K and with the maker’s mark for Dunhill.

Origin: England, ca. 2005. Condition: excellent. Size: 1-1/4” x 3/4". Weight: 17.6 grams.

A handsome pair of Victorian 14K yellow gold double-sided cufflinks, the faces set with cabochon agates. The variety of agate is called “landscape agate” because the colors and markings resemble painted landscapes. These particular stones suggest colorful sunsets behind wooded landscapes. The bezel settings are finished with fine millegraining. The connectors are marked 14K and have an unknown American maker’s mark.

Origin: America, ca. 1890. Condition: excellent. Size: 5/8” x 9/16”. Weight: 10.4 grams.

An extraordinarily fine Renaissance Revival 14K gold ball fob, suspended from its original chain. The orb is beautifully decorated with foliate engraving in the English style crisscrossed with bands of small natural pearls. The upper half of the orb is set with three blue sapphires in pinched floret mountings. The chain, fashioned as a series of florets, is alternately set with antique cushion cut sapphires and rubies flanked at compass points by natural seed pearls. The chain terminates with its original swivel hook. The rubies and sapphires have good color and show no evidence of heat treatment. The pearls have very luster. Tested and guaranteed 14K.

Origin: America, ca. 1870. Condition: excellent, all original. Size: sphere, 15mm diameter; chain & fob overall length, 117mm. Weight: 11.9 gr. Approximate Total Gemstone Weight: ruby, .10 ct; sapphire, .18 ct.

A lovely Retro necklace worked in 14K rose and yellow gold and set with moonstones and amethysts. The necklace descends from a rose gold paperclip link chain toward a pair of openwork yellow gold plaques, each set with a round amethyst accented with a rose gold stylized flower, and flanking a central triangular plaque designed in the same manner. A pair of oval cabochon moonstones is set at either side. The central plaque suspends a larger oval moonstone with a nearly invisible setting. The moonstones have very nice bluish adularescence and the amethysts have rich purple color. The interplay of gemstone and gold colors and the unusual design mixing Victorian, Art Nouveau and Retro elements creates a very striking effect. Tested and guaranteed 14K.

Origin: America, ca. 1935. Condition: ecellent, all original. Size: 17-5/8” long; central plaque and pendant, 1-3/8” long. Weight: 14.7 grams. Approximate Total Gemstone Weight: moonstone, 7.43 cts; amethyst, .32 ct.

A very nice Retro 14K yellow gold statement ring set with an imposing lemon yellow emerald cut citrine flanked by natural ruby cabochons. The split shank with a cage setting holds the citrine only at the very corners, so from the top, the entire ring appears to be one large expanse of gemstone. The rubies provided a nice pop of color. Tested and guaranteed 14K.

Origin: America, ca. 1935. Condition: excellent, all original. Finger Size: 8-1/2. Dimensions: citrine, 19x11mm. Weight: 13.0 gr. Approximate Total Gemstone Weight: ruby, 1.16 cts; citrine 23.20 cts.

A very fine Retro Moderne brooch in the form of a three-leaf clover, each leaf fashioned from an heart-shaped aquamarine, and centered with a pearl. The aquamarines are simply framed in gold collet settings with halo wirework accented with beading. The stones, 1.33 carats on either side and 1.87 carats at the top, have stunning pure blue coloring without a hint of gray. The 5.5mm pearl has an ivory body color with rosé overtones, and a very nice, lustrous surface. The back of the brooch retains the original pinstem and safety clasp, and is marked “14K”.

Origin: America, ca. 1940. Condition: Excellent, all original. Size: 15/16” x 1-7/32”. Weight: 4.0 grams. Approximate Total Gemstone Weight: 4.53 carats.

A lovely pair of colorful Retro earrings worked in 14K yellow gold. Each earring is fashioned in a stylized fan pattern set at the center with a round brilliant cut blue zircon and a spray of oval cabochon moonstones. The intense electric blue of the zircons heightens the softer, billowy blue adularescence of the moonstones. The zircons are set in rose gold, while the moonstones are in yellow. Tested and guaranteed 14K gold.

Origin: America, ca. 1935. Condition: excellent. Dimensions: 5/8 x 3/4 in. Weight: 5.3 grams. Approximate Total Gemstone Weight: zircon, 1.76 cts; moonstone, 7.38 cts.

A beautiful and rare Retro 14K yellow and white gold floral brooch featuring carved jadeite leaves and a carved rock crystal blossom. The rock crystal has an opalescent quality that appears much like moonstone. Both the front and back surfaces are finely engraved to suggest floral textures. The jade is brightly colored and contrasts nicely with the golden stems and leaves. The back is marked “14K”. Carved gemstone floral pins are quite uncommon.

Origin: America, ca. 1940. Condition: excellent, all original. Size: 2-11/16” x 1-1/4”. Weight: 12.0 grams.

An elegant Retro Moderne 14K yellow gold brooch in a stylized bow form, the center set with a large emerald-cut citrine of medium honey color, and the loops sprinkled with round brilliant-cut rubies. Some Retro pieces can be overly heavy, but this pin has a pleasant lightness despite its large size. The gemstones are of fine quality. Tested and guaranteed 14K gold.

Origin: America, ca. 1940. Condition: excellent, all original. Size: 3” x 1”. Weight: 15.5 grams. Approximate Total Gemstone Weight: ruby, .5 carat; citrine, 10.4 carats.

A fine Retro brooch worked in 14K yellow gold and set with diamonds and blue sapphires. The brooch is shaped as a stylized bow when worn vertically or a comet when worn sideways. The gold surfaces are pierced to lighten the overall effect. The center is set with a cluster of round brilliant and single-cut diamonds (J/SI1) surrounded by blue sapphires of slightly violetish-blue color and excellent clarity. The back is marked 14K and also has a mark for an unidentified maker.

• Origin: America, ca. 1940
• Condition: excellent, all original
• Dimensions: 2-5/16" x 1-7/8"
• Weight: 18.8 grams
• Approximate Total Gemstone Weight: diamond, .6 carat; sapphire, 2.0 carats