A very fine Art Nouveau pendant formed from an exceptionally large natural freshwater pearl mounted in platinum and gold and set with diamonds. The floral platinum mounting features a .15 carat old European diamond and nine single-cut diamonds. The bail is shaped as a clover and is set with three additional diamonds. The pearl has fine luster with rose and green orient. Tested and guaranteed platinum and 14K gold. The contemporary chain is 14K white gold.

• Origin: America, ca...

An elegantly tailored platinum and diamond engagement ring and matching band set from the 1960-s. The engagement ring is centered by a guaranteed 1.01Ct brilliant cut diamond, and the center stone is flanked on either side by a tapered diamond baguette. The center diamond is not certified, but graded by our in-house gemologist, and has J color and VS1 clarity. The approximate total weight of the three diamonds in the engagement ring is 1.20Ct...

An elegant Art Deco platinum filigree ring centered by a .70 old European cut diamond mounted in an octagonal surround of caliber cut synthetic sapphires (typical of genuine Art Deco period rings). The platinum setting is beautifully pierced at the front and the shank is engraved in a foliate pattern completely around. The diamond is graded as G/H color and VVS1 clarity, and has excellent cut with fine brilliance. The sapphires are bright and provide a nice pop of color...

Natural emerald oval cabochon weighing approximately 0.40 ct surrounded by beautiful platinum openwork and four diamonds weighing approximately 0.20 cttw. The ring is a size 6 and the overall weight is 3.1 grams. It is in good condition. It is unmarked but has tested as platinum. Circa 1910.

One platinum on 18K yellow gold and diamond Edwardian brooch. The brooch consists of a pierced top set with Old European cut diamonds and melee rose cut diamonds in a geometric pattern. The twelve Old European diamonds have a total weight of 1.20 carats. The clarity is SI1 and the color is H-I. The thirty nine rose cut diamonds have a total weight of .50 carat. The brooch has a hinged straight back with side clutch closure. The piece measures 2" long by 7/8" wide. The condition is excellent...

This is an Art Deco Era Platinum Diamond & Sapphire Ring. At the Center is a Beautiful 2CT Sapphire. On the Square top there are 16 Diamonds; at the Shoulders there are 6 more Diamonds... total Diamond Weight: 1/2 carat. Deco Fans add this Beautiful Ring to the Jewelry Box.. ca. 1920- 1940 in Excellent Condition

Spectacular platinum dinner ring with prong set 23.78 ct brilliant cut oval blue natural topaz dinner ring with a split shank. The topaz measures 20 x 15 x 11 mm and is surround by 40 prong set brilliant cut diamonds with an approximate total weight of 1.68 ct. The ring's focal design is 29 mm long and 25 mm wide. Condition is excellent, like new. Appraisal attached.

A beautiful lady’s ring in the pierced dome style. The dome is set with melee round diamonds surrounding the center old European cut diamond. The center diamond’s diameter is 7mm with clarity VS1 and color H-I. Weight is 1.19 carat. There are 18 single cut diamonds with clarity VS1-VS2 and color G-H weighing 0.50 carat. Total weight is 4.2 grams. The ring shank is marked “Platinum and 1373” with engraved initials AJH. Circa 1910. Ring size 6 ½. The ring is in excellent condition.

Elegant platinum and diamond bracelet designed by Elsa Peretti for Tiffany & Co. The bracelet features 23 collet-set 10-point round brilliant-cut diamonds spaced along a platinum chain. The diamonds are G color and VS clarity. The clasp is marked "Perretti T&Co 950". It currently (January 2013) retails at Tiffany for $10,500. Size: 7-1/8" long. Weight: 5.5 grams. Total Diamond Weight: 2.3 carats.

This is a Marquise Cut Diamond Ring in a 14K White Gold setting with Diamond accents. The Engagement Ring has an approximately 75/100 Carat Major Diamond SI2 GH Color. Vintage 1970- 1990 ......Please contact us for more details or see this Ring @ Jantiques in Kensington, Md. ........

Sixteen large old mine cut diamonds set in a heavy platinum setting. The diamonds weigh approximately 3 carats total weight, and grade at VS-SI in clarity and H-J in color. The pin-back is 18k yellow gold and is stamped as such. The brooch measures 1.75" in length and approximately .75" wide. It is in excellent condition and weighs 7.7 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...

An exquisitely made antique platinum diamond and ruby ring that is centered by an 8 X 6 mm oval cabochon natural ruby which has the approximate weight of 1.0 Ct. The center stone is surrounded by twelve old-mine diamonds with the approximate total weight of 0.60 Ct. The top of the ring measures 13 X 11 mm.

Ca 1920 A stunning platinum and pearl ring with millegrain setting. There are twelve diamonds with a total carat weight of approximately 1.25 (ctw). The cream-colored cultured pearl measures 9mm. There is also a small amount of glue residue at the base of the pearl and very light wear on the nacre. Tests 950 platinum. Size 4.5 ~ Weight: 4 grams.

This is a Pair of Platinum Diamond & Onyx Earrings from a Virginia, USA Estate. Ca. 1980 this Pair of Earrings purchased with item # 1085954 ....Plat Diamond Onyx Ring Obviously worn together. 1 3/8" Long North ~ South

An impressive Edwardian pendant featuring a large cabochon amethyst and diamonds set in platinum. The amethyst is pierced and set with a .25ct H/SI1 diamond and surrounded by a halo of small old European cut and rose cut diamonds. The bail is similarly set with rose cut diamonds. The pendant has a very dramatic appeal, yet the openness of the setting keeps it from being overpowering. Tested and guaranteed platinum (chain is silver).

Origin: America, ca. 1915...

A superb early Edwardian “style guirlande” platinum, gold, diamond, opal and pearl necklace. The fine platinum chain suspends a platinum and gold pendant centering a beautiful oval opal surrounded by an ornate swagged garland of diamonds punctuated with creamy natural pearls. The opal has strong and even play-of-color with strong flashes of bright green, a bit of blue and pale orange...

According to the marks this simple and tailored yet very elegant design platinum ring was made in Birmingham England in 1960. The approximately 0.60 Ct tube set solitaire diamond has I color and SI1 clarity. This ring is for anyone who appreciates classic elegance.The ring is a size 6 ¼ and it can easily be sized.