Catalog: Estate Jewelry (1605)

A handsome pair of 18K white gold cufflinks, the faces set with octagonal mother-of-pearl plaques centered by small square blue sapphires. The mother-of-pearl surfaces are finely crosshatched to match the engraving of the gold at the corners. The faces are joined by chains. Marked "18Ct."

Origin: England, ca. 1930. Condition: excellent. Size: 7/16" x 7/16". Weight: 7.0 grams

A fabulous Art Deco platinum brooch in the form of a carved hardstone Scottish Terrier sitting atop a diamond-encrusted platform surrounded by a leash as a sort of diamond-set halo. The dog is finely carved and enhanced with a matte finish. The 114 old mine and single-cut diamonds average H color and SI1 clarity. The back of the pin is finished with a double clip. The reverse is engraved "To Mama 6-8-36". The bottom edge of the gallery has what appears to be a heavily worn signature. Tested and guaranteed platinum.

Origin: Europe, probably Belgium, 1936. Condition: excellent, all original. Dimensions: 1-3/8" x 1". Weight: 15.4 grams. Approximate Total Diamond Weight: 2.85 carats.

Very nice 14 karat yellow and rose gold brooch in the Retro Modern style, set with a single deeply lustrous 4.5mm pearl. The circle is rose gold, and the leaves are a slightly green-tinted yellow gold. The interplay of gold colors is a signature of period Retro Modern jewelry. The back is marked by the jeweller, A. J. Hedges & Co.

Origin: Newark, NJ, circa 1935. Condition: virutally mint, all original. Size: 1-11/16" x 1-1/8".

A 14K yellow gold and platinum flexible brickwork strap and buckle ring set with round diamonds and rubies. The buckle is fully functional, so the ring can be adjusted from size 5-3/4 to 10. The style of gem-setting, with the scalloped border, is bolder than many examples. The diamonds average I/J color and SI clarity. The rubies have nicely saturated purplish-red color. Tested and guaranteed 14K and platinum.

Origin: America, ca. 1935. Condition: excellent, all original. Dimensions: strap, 7/16” wide; buckle 11/16” wide. Finger Size: 5-3/4 to 10. Weight: 12.8 gr. Approximate Total Gemstone Weight: diamond, .40 ct; ruby, .50 ct.

A lovely 18K yellow gold, diamond and ruby love pendant (“medaille d’amour”) with a rebus spelling out Plus qu’hier, moins que demain,” (“More than yesterday, less than tomorrow.”) a line from the love poem written by Rosemonde Gérard to her husband Edmond Rostand (author of “Cyrano”) in 1889. The word “plus” is symbolized by a plus sign set with a five rose cut diamonds and the word “moins” by a minus sign set with rectangular cut synthetic rubies.

In 1907, the Lyonnais jewelry Alphonse Augis created a love token based on the poem. This example is in the original style with a “crêpe de chine” textured background and floral wreath border. The use of a rose cut diamond, the A. Augis signature and the patent mark indicates that this is an earlier example. The small size is particularly nice for wear as a pendant from a delicate chain. The pendant is fully stamped with French 18K gold marks.

• Origin: France, 1930.
• Condition: excellent; sharp detail.
• Dimensions: 9/16” diameter (excluding bail and jump ring).
• Weight: 2.0 grams.
• Approximate Total Gemstone Weight: diamond, .01 carat; ruby, .03 carat.

An unusual and handsome 14K yellow gold tie bar designed as a Gothic-style strap hinge by Larter & Sons. When not being used to hold a tie in place, the piece could also be used as a money clip. The design is nicely detailed with beveled edges and raised bolts. The back is stamped with Larter's hallmark. Larter manufactured pieces such as this for leading jewelry retailers such as Tiffany and Cartier.

• Origin: America, ca. 1925
• Excellent condition
• Dimensions: 2-7/16" x 3/4"
• Weight: 7.5 grams

A fine pair of Art Deco cufflinks, featuring round discs of green jade simply set in 14K yellow gold. The faces are connected by chains to backs shaped as lengths of bamboo. The jade has moderate translucency and strong green coloring with even mottling. The color is natural. The cufflinks are presented in their original fitted box, the lid of which is marked "Jade Green Shanghai". Tested and guaranteed 14K.

Origin: China, ca. 1920. Condition: excellent. Size: 11/16" diameter. Weight: 5.8 grams.

An elegant pair of silver double-sided cufflinks by David-Andersen featuring Prussian blue guilloche enamel in a sunburst design encircled with opaque white champlevé enamel. Exposed areas of silver are gilt. The backs are stamped with the David-Anderson mark used 1888-1925.

Origin: Norway, ca. 1920. Condition: excellent; no enamel damage. Dimensions: 9/16” diameter. Weight: 6.6 grams.

A fantastic set of cufflinks and three shirt studs worked in rock crystal set in 14K yellow gold and studded with emeralds, rubies and sapphires. The double-faced cufflinks feature matte-finished flattened oval cabochons of rock crystal centered with collet-set ruby, emerald and sapphire cabochons. The shirt studs are round rock crystal cabochons set with matching center stones. The center stones are of exceptionally fine quality with intensely saturated color and eye-clean clarity. The gold mountings are stamped "14K".

With boutiques in Vienna, Zurich and New York, Demner is one of the world's most exclusive vintage jewelry dealers. They are known for uncovering high quality pieces in uncommon designs. This set is presented in a leather, silk and velvet fitted box imprinted with Demner's logo.

Origin: America, ca. 1920. Size: cufflink large faces, 5/8" x 1/2"; studs, 11/32" diameter. Approximate Total Gemstone Weight: emerald, .29 ct; ruby, .30 ct; sapphire, .30 ct.

An elegant Art Deco ring in platinum set with diamonds, sapphires and a 7-mm pearl. The octagonal face is bordered with sixteen single-cut diamonds (H/SI2) enclosing a border of calibre-cut sapphires around the center pearl. The pearl has excellent luster and overtones. The inside of the shank is marked "10% Irid Platinum".

Origin: America, ca 1920

Condition: excellent, the pearl likely replaced a center diamond

Dimensions: crown 1/2" x 1/2"

Finger Size: 4-1/2

Weight: 6.0 grams

Approximate Total Gemstone Weight: diamond, .50 carat; sapphire, .25 carat

A beautiful pair of Art Deco 14K yellow gold and natural green chalcedony cufflinks by Krementz. The cut-cornered rectangular faces are set with plaques of vivid green chalcedony surrounded by borders decorated in an angular raised diamond pattern. Cufflinks set with green gemstones are difficult to find, and this is a particularly attractive pair. The connectors are stamped 14K and have the Krementz hallmark.

Origin: America, ca. 1920. Condition: excellent. Dimensions: 5/8 x 1/2 inch. Weight: 9.3 grams.

A classic pair of heavy 14K yellow gold Edwardian cufflinks. The oval faces are simply finished with an engraved border. Cufflinks of this type are usually fairly lightweight, but this pair has noticeable heft. The backs of the faces and the connectors have 14K marks.

Origin: America, ca. 1920. Condition: excellent, all original. Dimensions: 3/4 x 9/16 in. Weight: 17.1 grams.

A stunning Art Deco platinum ring featuring an antique cushion cut 9.03-carat Ceylon sapphire flanked on either side by three baguette diamonds arranged in a stepped pattern. The sapphire is graded on the GIA scale as vB5/4 (medium tone, moderate-strong saturation, violetish blue color), with eye-clean clarity and excellent cut. The stone's internal characteristics suggest Ceylon as the most likely origin. The overall look is a lovely cornflower blue with a tinge of violet mixed in. The stone is brilliant and easily stands up to the side diamonds, graded as F/VS1. The shank is stamped with French hallmarks for platinum and for 18K (the prongs holding the sapphire are 18K white gold). The interior of the shank is stamped with a serial number and a maker's signature that is now obscured. A stone of this size and quality, complete with a serial number, would suggest a major Parisian house as the maker.

Origin: France, ca. 1920. Condition: excellent; the shank is in very good condition; minute scattered facet junction wear on the sapphire. Dimensions: crown, 11/16" x 1/2". Finger Size: 6-1/4. Weight: 5.7 gr. Approximate Total Gemstone Weight: sapphire, 9.03 cts; diamond, .60 ct.

A phenomenal Edwardian platinum, diamond and amethyst bow brooch by Cartier. Four tromp l'oeil amethyst loops, each surrounded in old European cut diamonds, flank a center 1.08 carat, J/K, VS2 old European cut diamond.

Each of the double loops of the bow appears to be set with two amethysts, but there is in fact only one amethyst on each side. The gemstones are precision-cut to fit perfectly into the platinum setting and give the appearance of being four stones. The amethysts are graded as medium, moderately strong Purple (P5/4) in color, with eye-clean clarity. This is the color and intensity sometimes termed "Siberian".

The 104 old mine cut and rose cut diamonds along the platinum borders total approximately 2.94 carats range from VS2 to SI2 clarity and H-J color.

The platinum setting is beautifully crafted, with a pierced gallery and engraved details around the collet setting of the center stone.

The brooch is hallmarked with the extremely rare master goldsmith's mark used by Cartier for only a three-year period, 1919-1922.

Origin: Paris, France, 1919-1922. Condition: very good, there is a small chip on the inside edge of each amethyst near the junction with the center diamond, visible upon very close inspection in strong raking light (one visible only from the reverse). Size: 3" x 27/32". Weight: 18.7 grams. Approximate Total Gemstone Weight: amethyst, 22.68 carats; diamond, 4.02 carats.

A fine pair of heavy 18K yellow gold double-sided baton cufflinks. The unusual reeded end-caps echo the center ring on each baton, giving this pair a more sophisticated appearance than most baton cufflinks. The faces are connected by heavy chains. Tested and guaranteed 18K.

Origin: America, ca. 1920. Condition: excellent, all original. Size: faces, 3/4" long. Weight: 9.4 grams.

A nice pair of Edwardian doubled-sided 14K yellow gold cufflinks, the faces decorated in a combination of matte reserves flanked by polished foliate plaques. The design hints are the arrival of Art Deco. The “bowtie” connectors are decorated, as well, and are marked “14K”.

Origin: America, ca. 1920. Condition: excellent, sharp detail. Size: 5/8” x 7/16”. Weight: 7.3 grams.

A fine large-size enameled 14K yellow gold Art Nouveau flower pin the form of a pansy. The petals are beautifully decorated with purple, violet cream and yellow opaque enamels. The enamel has a soft luster that mimics the velvety texture of an actual pansy. The flower is centered with a 15-point round brilliant diamond of exceptionally good quality (E color, VVS2 clarity). The specific shape and arrangement of the petals identifies this pin as being made by Larter, but the company also supplied these pins to luxury retailers such as Tiffany and Cartier where they were marked with the retailer’s mark. This pin has an unidentified mark (the Greek letter omega) and has faintly inscribed inventory numbers often found on pieces that were sold by luxury jewelers.

Origin: America, ca. 1920. Condition: excellent, one 1/8” enamel flake on one of the upper white rims (nearly invisible since the flake is only to the surface of the enamel and no gold shows through). Dimensions: 1-1/4” x 1-5/16”.

Terrifically stylish Art Deco cufflinks fashioned as domed silver discs with 14K gold appliqués reminiscent of Georg Jensen’s “Blossom” designs. The quality of workmanship is excellent. The connectors are marked “900”.

Origin: probably Denmark, circa 1920. Condition: excellent, all original. Size: larger faces, 5/8” diameter. Weight: 10.0 grams.