A small 18K yellow gold Sputnik ring by H Stern. The dome is bezel-set with round amethysts, citrines, aquamarines, peridots, green tourmalines, pink tourmalines and garnets. The Sputnik design was created in the 1950's to highlight the range of colored gemstones available from Stern's Brazilian mines. It later came to be called "Sputnik" for its resemblance to the spiky Soviet satellite launched in 1957...

A very fine 14K gold stickpin in the form of a horse's head by Sloan & Co. They eye is set with a small ruby cabochon. The horse is entirely three-dimensional, worked with as much detail on the back as the front. The stick pin can easily be converted to a pendant or ring. The base of the neck is stamped with Sloan's 14K gold mark.

• Origin: America, ca. 1900.
• Dimensions: head, 7/8" 5/8"; overall length, 2 15/16".
• Weight: 3.1 grams.
• Condition: excellent.

An attractive pair of Retro 14K yellow gold dangle earrings fashioned as circles of gold balls centering round brilliant cut amethysts. The amethysts have rich deep coloring and excellent clarity. The earrings were originally screwbacks and have been converted to wires. The new look is much more wearable and provides tons of sparkly movement!

• Origin: America, ca...

An elegant 18k yellow gold ring featuring an oval brilliant cut aquamarine accented at compass points with folds of gold nestling small round brilliant diamonds. The aquamarine has medium light pure blue color and eye-clean clarity. The cut is very good with excellent brilliance...

An elegant Art Nouveau cross pendant worked in a foliate design of 18K yellow gold overlaid with a sunburst of milgrained platinum set with rose cut diamonds and centering a larger old mine cut diamond. The gold surfaces are enhanced with chasing to enhance the naturalistic look of the swirling leaves. The center diamond, .20 carat, is I/VS2. The remaining diamonds cannot be accurately measured for size, but face up at about .40 carat...

A wonderfully detailed 14K yellow gold brooch depicting a spaniel. The shape of the dog’s head and the amount of fur suggests that the pin represents a Springer or English Cocker spaniel. The pin has substantial weight. The clasp is marked “14K.”

• Origin: America, circa 1935.
• Dimensions: 1 3/32” x 3/4”.
• Weight: 6.9 grams.
• Condition: excellent; sharp detail.

A classic Retro buckle ring worked in 18K yellow gold buckle ring with a platinum loop set with single-cut diamonds and the end tip set with caliber-cut rubies. Unlike in many Retro pieces, the rubies are natural...

A large pair of 18K yellow gold Sputnik earrings by H Stern. The domes are bezel-set with round amethysts, citrines, aquamarines, peridots, green tourmalines, pink tourmalines and garnets. The Sputnik design was created in the 1950’s to highlight the range of colored gemstones available from Stern’s Brazilian mines. It later came to be called “Sputnik” for its resemblance to the spike Soviet satellite launched in 1957...

A large 18K yellow gold Sputnik ring by H Stern. The dome is bezel-set with round amethysts, citrines, aquamarines, peridots, green tourmalines, pink tourmalines and garnets. The Sputnik design was created in the 1950’s to highlight the range of colored gemstones available from Stern’s Brazilian mines. It later came to be called “Sputnik” for its resemblance to the spike Soviet satellite launched in 1957...

A large, heavy 18K gold Venetian Etruscan fob charm set with brilliant cut amethysts and pearls. The gold surfaces are heavily decorated with applied wire-work and rosettes. The amethysts intense violet coloring and excellent clarity. The pearls display good luster with a slightly rose overtone that nicely complement the color of the amethysts. Marked “Italy 18K.”

• Origin: Italy, ca...

A colorful 18K gold and gemstone ring from the “Rainbow Collection” by H Stern. Made in the 1980’s, the collection was intended to show off the variety of colored gemstones available from Stern’s Brazilian mines and also the artistry of the company’s designers in the subtly graduated colors that reproduce the colors of the rainbow spectrum. The selection includes amethyst, iolite, green tourmaline, peridot, citrine, pink tourmaline and garnet...

A colorful pair of 18K gold and gemstone earrings from the “Rainbow Collection” by H Stern. Made in the 1980’s, the collection was intended to show off the variety of colored gemstones available from Stern’s Brazilian mines and also the artistry of the company’s designers in the subtly graduated colors that reproduce the colors of the rainbow spectrum. The selection includes amethyst, blue topaz, green tourmaline, peridot and citrine...

A very nice late Georgian carnelian spinner fob mounted in an 18K gold frame in the form of two intertwined snakes. The snakes are hand-chased with detailed scales and interesting, their heads are finished with duck-bill mouths (complete with teeth) grasping apples...

A fine modernist 18K yellow gold ring by Burle Marx set with an intricately carved aquamarine in the “forma livre” (free form) style. Haroldo Burle Marx was particularly known for his use of Brazilian gemstones, often fashioned by carving or tumbling rather than faceting, a technique he invented in 1948. The aquamarine’s deep, dusky blue color contrasts beautifully with the gold, which is worked with florentined engraving typical of Burle Marx’s pieces. The shape of the stone also cre...

A gorgeous and generously sized Art Nouveau 14K gold and diamond locket by Carter, Gough & Co. The cover features a maiden emerging from a bouquet of flowers. The choice of flowers in the bouquet sends a very specific hidden meaning in Victorian floral symbolism. The iris on the left means, "I have a message for you," and the jonquil on the right means, "I desire a return of affection." The flowers and the maiden's hair are studded with six old mine cut diamonds. The background is worked in ...

A very attractive 18K yellow gold ring set with an amethyst by the famed mid-century Brazilian designer Haroldo Burle Marx. Burle Marx is well-known for his free form designs, but his collaborations with his brother, the landscape architect Roberto Burle Marx, had a much more linear, abstract feel as in this piece. The amethyst at the center is of the very finest quality, with intensely purple color and excellent clarity. The gold is completed with the finely worked florentined finish typical...

A fascinating 18K yellow gold cocktail ring featuring a "forma livre" (free-form) amethyst by the famed mid-century Brazilian designer Haroldo Burle Marx. Burle Marx invented the technique of carving and tumbling forma livre stones in 1948, and the style became his signature. The amethyst chosen for this ring has distinct color zoning that creates an interesting interplay of deep and light purple coloring. The setting is finished in the florentine style typical of Burle Marx's work. The inter...

Quite an unusual carved amethyst and 14Kt gold pendant that is attached to an amethyst and 14Kt yellow gold bead necklace. The pendant carved in a shape of a fruit with leaves and encircled by a 14Kt yellow gold frame. The pendant is 1 3/4 “high and 1’ wide. The 17” necklace consists of 44 pieces of 8 millimeter amethyst beads, four 14Kt gold 7 millimeter beads, and a 14Ky yellow gold “Gucci Style” lobster claw clasp. The gold beads have slight dimples which is consistent with normal ...