An extraordinary modernist fringe necklace in 18K yellow gold and green tourmaline by the famed Brazilian modernist jeweler Haroldo Burle Marx. Burle Marx invented the technique of carving and tumbling forma livre ("free form") gemstones in 1948, and the technique became his signature. Most often, he used colorful stones native to Brazil—tourmalines, amethysts, aquamarines, citrines, etc...

A very fine Art Deco 14K yellow gold necklace of filigree links centering a collet-set carved jadeite disc suspending another filigree link and a large oval plaque of jadeite carved in a floral pattern. The workmanship of the filigree is superior, with finely detailed millegraining on nearly all the surfaces. The use of yellow gold in filigree jewelry of the period is quite unusual, but is very attractive as a foil to the rich green of the gemstones...

An attractive 1-3/4 x 1" three colour gold pin in the form of three maple leaves on a branch. The leaves are textured and have green, yellow and rose gold; it is stamped 10K, it has a safety catch, it weighs 3.3 grams, and it is in excellent original condition with no dents, bends, corrosion, losses, damage or repairs. All items are thoroughly and conservatively graded and all condition issues are noted; all items are secondhand and may have slight signs of gentle use...

A very fine and heavy vintage 14K yellow gold necklace by Tiffany & Co. The timeless braided design is enhanced by the gradual tapering of width from the center toward the clasp. The flat braided construction allows the necklace to life flat against the throat. This design has been reinvented several times over the years, and this piece likely dates from the 1960s. It is not currently available, but chains of similar weight are available from Tiffany in the $5,000 range...

A very nice 14K yellow gold 5mm cable twist bracelet with domed ends set with pearls and rubies from the “Cable Classics” collection by David Yurman. The 4.8mm pearls are beautifully accented with rows of channel-set round rubies. This design is one of the earlier pieces from the “Cable Classics” collection, and is no longer in production. The original retail price was $2,450. The open cuff is flexible and can be spread to fit nearly any wrist...

Lovely vintage gold and genuine salmon coral clip earrings by the San Francisco jeweler Gump's, known for its fine coral, jade, and pearl jewelry. Circa 1975. Marked 14K and GUMP'S. Together they weigh 9 grams. The color is a classic salmon coral, warmer than the photos depict. The earring backs are ready to be converted to pierced with the addition of a post.

Each is 7/8 inch long. Excellent condition...

A very nice 18K yellow gold Sputnik style ring by H Stern. The dome is bezel-set with round citrines, amethysts, green tourmalines, pink tourmalines, garnets and aquamarines. This design was created in the 1950s to highlight the range of colored gemstones available from the mines of the jeweler’s native Brazil. It later came to be known as “Sputnik” for its resemblance to the spiky Soviet satellite lanched in 1957...

An elegant pair of 18K yellow gold earrings with mother-of-pearl inlay by Angela Cummings. The designer pioneered modern hardstone mosaic techniques when she was still lead designer at Tiffany & Co. After establishing her own luxury boutique, she continued to make similar designs under her own name. The earrings are marked “Cummings 18K”.

Origin: America, 1984-2003. Size: 1” x 3/4". Weight: 15.7 grams.

A late Victorian 12" (including swivel) graduated link watch chain in 9k rose gold. The links and swivel are stamped 9ct and it ranges from 1/4" to 1/8" wide, but the t-bar is unmarked and is rolled gold plate. The chain weighs 12.6 grams and it is in excellent original condition with no dents, bends, corrosion, losses, damage or repairs...

Very nice Victorian 18K yellow gold stick pin in the form of a coiled snake. The head is set with an old European cut green tourmaline. The engraved detailing is very nice. The snake motif in Victorian jewelry, often used to represent eternal love, became popular after Prince Albert gave Queen Victoria a snake ring as her betrothal gift. Hallmarked with the French "tete de cheval" and an unidentified maker's mark.

Origin: France, circa 1850...

An extremely rare 18K yellow gold bracelet in the Sputnik design by H Stern. The domes are bezel-set with round amethysts, aquamarines, citrines, green tourmalines, pink tourmalines and garnets. The design was created in the 1950s to showcase the range of colored gemstones available from Stern’s mines in Brazil. It later came to be called “Sputnik” because of its resemblance to the spiky Soviet satellite launched in 1957. Each piece has a unique appearance that relies on the particular...

Fabulous Art Deco 18K yellow gold box, the lid decorated with opaque red and black champlevé enamels depicting a roulette wheel. A black enamel linear pattern and fan motifs at the corners complete the very Deco design. The can be used to hold either cash or mother of pearl gambling counters. For those who are curious, the case perfectly fits $2,500 in $100 bills folded in half. The superb workmanship shows, not only in the enameling, but in the solid construction techniques such as attachi...

Beautiful matched pair of white gold eternity rings, one ruby and one sapphire. Both have square cut stones mounted in 14KT white gold. The gold tests positive for 14K with jeweler's acid. Both are from the same estate. The stones on both are just under 2 millimeters square. Together they weigh 3 grams. Both are ring size 6 1/4 and are 2 mm wide. Excellent condition. A few of the ruby stones have very slight edge abrasion and one has a tiny flea bite; nothing is visible without a ...

Superb Mikimoto brooch in the shape of a harp. The harp’s sounding board is set with a row of ten fine AA pearls graduating from 3.3 to 5.8 millimeters, and the strings are studded with round brilliant-cut diamonds. The neck and column, both worked in gold, are beautifully detailed. The pearls are of exceptional quality with light cream body color and rosé overtones. The luster is very bright and the pearls are well matched. The diamonds are SI1/2 clarity and G/H color. Mikimto figur...

A lovely and very unusual 18K yellow gold, rock crystal, mother of pearl and aventurine glass ("goldstone") locket. The locket is constructed as a beveled oval frame of aventuring enclosing a pair of rock crystal windows, one of which opens to allow access to the inside of the locket. A mother-of-pearl plaque can be left in place so two photos can be displayed or removed so the locket can hold a lock of hair or a pressed flower. This is the only aventurine locket we have seen. The bail is st...

Large snake brooch made by Italian designer Piranesi. 18K black gold setting covered with amethysts, pink tourmaline, two approx 5 pt diamonds for eyes. The combination of these stones gives this brooch an overall stunning color, a real standout.

18K Rose Gold Diamond Ruby Buckle Bracelet c1940 Very fluid and flexible,feels great on the wrist. Hallmarked 750 18k. Approx 2.75 cts single cut diamonds. Diamonds are G-H Color, SI 1 Clarity. All diamonds are pave set. .69 ct rubies, perfectly matched and channel set. Handmade box lock 1 inch wide 7 5/8 inches long (wearable length) 99.1 grams

A lovely vintage 14K yellow gold heart pendant pave-set with 62 round brilliant rubies by Tiffany & Co. The heart is slightly domed and shimmers in vibrant red. The workmanship is simply outstanding. The back has a folding bail and a pinstem so the piece can be worn as a pin or suspended on a chain. Marked “Tiffany & Co. 14K”.

Origin: America, ca. 1950. Condition: excellent, all original. Size: 7/8” x 15/16”. Weight: 6.7 grams. Approximate Total Gemstone Weight: 4.5 carats.