A fine modernist 18K yellow gold ring set with an intricately carved aquamarine in the "forma livre" (free form) style. Haroldo Burle Marx was particularly known for his use of large gemstones, often fashioned by carving or tumbling rather than being faceted, a technique he invented in 1948. The color of this aquamarine is quite nice—almost a Prussian blue. The gold mounting is decorated with the fine florentined engraving often seen on Marx pieces...

A vintage pair of handsome and versatile 14K yellow gold and black onyx barrel shape cufflinks made by Tiffany & Co., comprised of five barrel black onyx stones, toggle backs, marked "585" for 14K gold and TIFFANY & CO. Size: 1"L x 7/8" W WT: 10.4g Condition like new.

A stylish sterling silver pendant and chain by Elsa Peretti for Tiffany & Co. The bottle can be worn either empty as a sculptural piece of jewelry or as a vase with a single, delicate flower. Both the pendant and chain are signed Peretti and are fully hallmarked by Tiffany. This piece is the middle of the three available sizes and currently retails for $550.

Size: pendant, 1-3/4” x 1-1/2”; chain, 25” long. Weight: 18.6 grams.

Fabulous vintage 14K yellow gold twist strand C-shape key holder with black onyx ball closure, Circa 1970, stamped 14k. Weight: 6.1 grams. Size: 1 3/8" diameter. Condition is excellent.

Stunning vintage necklace in YSL's signature bohemian chic style, with seamless black Lucite beads, goldtone metal beads and drops, and black silk tassels, all strung on a fine metal chain in typical French construction. Circa 1970 or 1980. Marked YSL on the attached hang tag. Wearable length is 16 1/2 inches and it drops 3 1/2 inches in the center. Excellent condition. Photos enlarged to show detail. Necklace form is life size.

Vintage sterling clip earrings with intricately carved black onyx by Brazilian jeweler Burle Marx in the "forma livre" (free form) style. Burle Marx was particularly known for his use of large gemstones, often fashioned by carving or tumbling rather than being faceted, a technique he invented in 1948. These beautiful earrings measure 1 1/4" by 1 1/8" and are in fine original condition. The stones are free of chips, cracks or scratches. Weighing 36 grams total, they are signed as shown...

Amazing very big collar necklace in silvertone metal with huge brilliant glass stones in fuschia, cobalt blue, topaz, and opaque black. Slide clasp. 1960s or 1970s. This piece looks like a hand made one off runway piece. All the stones are round except one oval topaz stone on the lower left side. The stones are much more brilliant than the photos depict. This piece would be fabulous worn over a black sweater or T shirt. 17 inches wearable length and 2 1/4 inches wide in the center...

A classic 18K yellow gold tapered band by Tiffany & Co. set at the crown with an oval cabochon citrine. The stone has very nice slightly orangey-yellow color and eye-clean clarity. The ring has a very solid feel and can be worn by either a man or woman. The interior of the shank is marked “750” for 18K and is signed by Tiffany. This ring is no longer available at Tiffany, but originally sold for $2,150.

• Italy, ca...

Outstanding vintage necklace in heavy gunmetal gray chain links with quatrefoil shaped elements which are made of translucent tortoise Bakelite. This piece can also be worn as a belt. Marked YSL on an attached metal tag. 1970s. The quatrefoil form is of course a classic medieval and Moorish motif and is here translated into a stunning modern look. Very wearable and versatile -- there is a hook at each end, allowing it to be arranged in many lengths and configurations...

A very fine pair of heavy 18K yellow gold and platinum double-sided cufflinks by David Webb. The round faces are shaped as compressed spheres (imagine an old-fashioned flying saucer) bisected by pairs of parallel raised bars. Each face is centered with a round brilliant blue sapphire bezel-set in platinum. The smaller, back faces are hinged so they can easily be put through a cuff. The gold and platinum have a very elegant brushed texture that contrasts beautifully with the sapphires...

A very handsome pair of 18K yellow gold barbell cufflinks, the ends formed from lapis spheres carved in a traditional braided knot pattern. The gold connectors are decorated with a twist motif. The lapis has a evenly-distributed dark violetish-blue color. Tested and guaranteed 18K.

Origin: America, ca. 1980. Condition: excellent. Dimensions: 1-3/8” long; beads, 11mm diameter. Weight: 9.0 gr.

An outstanding, oversized pair of 18K yellow gold cufflinks fashioned as lengths of bamboo by Cartier. The surfaces are worked in the Florentine finish popular in mid-century jewelry. The "notches" in the bamboo are polished for nice contrast. The back faces are hinged. The cufflinks are marked "Cartier/18K/Italy" and have the serial number "26464".

Origin: Italy, ca. 1970. Condition: excellent. Size: front faces, 1-5/16" x 5/8"; back faces, 15/16" x 5/16". Weight: 23.3 grams.

A handsome pair f 18K yellow gold cufflinks, the rectangular faces enhanced with an engraved waffle pattern and featuring a line of rectangular cut blue sapphires. The sapphires have strong blue coloring and eye-clean clarity. The faces are connected to hinged backs decorated in a matching waffle pattern. The bridges are fully stamped with French master goldsmith’s marks.

Origin: France, ca. 1980. Condition: excellent, all original. Dimensions: front faces, 12 x 20 mm (1/2 x 13/16 in)...

A handsome pair of cufflinks, the faces featuring ancient silver Macedonian coins dating from the reign of Alexander the Great (336-323 B.C.)...

These Mod earrings dangle 1 3/4". They are 3/4" at their widest. The eyes are translucent: a dark purple. They are in great condition.

This Pendant measures 1 1/2" x 1 1/2" x 1/4". It has a Mod Geo Design, accented by its central, dangling "ball." The bail is marked TAXCO MEXICO with FNM in the middle. It also has the Taxco eagle mark with the # 2 in the middle. It has good heft and is in excellent condition.

A fine pair of modernist sterling silver cufflinks featuring South Sea black pearls by Ted Lowy. The pearls have dark gray body color with very pronounced and desirable peacock overtones in rose, green and purple. The backs are marked “Sterling/Ted Lowy”. Lowy was active in South Orange, NJ during the 1960’s and 70’s. He is still living, now aged 93. He was not especially prolific and his pieces rarely come on the market. He exhibited at New York’s Cooper-Hewitt National Design M...

These cool earrings are best described by the pictures.... The "hook" portion of the earrings measure 1 3/4". The "tear drop" measures (approximately) 3/4" x 3/4" x 3/8" -- again, see pictures. They "hang" 2". They are circa 1980's.