PLATINUM 3.30 CT DIAMOND BROOCH CA. 1930'S

With three millegrained bezel-set OEC diamonds, approx. .90 ct., 1.50 cts. or .90 ct., centering graduated lines of OEC diamonds, approx. 5.0 cts. TW, in a geometric design. Ca. 1930. Stamped Wise & S

An Art-Deco black onyx bow brooch ca 1930's. 14k white gold double pin back and frame. Diamonds set in platinum weighing approximately three carats total weight including center marquise cut diamond.

The flattened curb links center a pale orange sapphire, approx. 7.99 cts. by formula. In OMC and OEC diamond platinum-topped link, diamonds approx. .88 ct. Ca. 1930. 14k. Stamped Seaman Schepps. 7 3/4

Comprising three rings with OEC diamonds or red "gems," and round faceted ruby, in platinum filigree mounts, diamonds approx. .52 ct. TW throughout, ca. 1930. Largest size 9 1/2. 5.7 dwt.

Antique 14K Yellow Gold 3.30 Ct. Diamond Cross Brooch/PendantWeighing 13.1 gramsSet with 11 Diamonds weighing app. 3.30 Ct.I-J Color, VS1-Si2 Clarity2.25 inches in length

LAPIS LAZULI AND DIAMOND BAR BROOCH, 1930 CIRCA in platinum with bar centered with an Old European-cut diamond of approx. ct 0,50 surrounded by lapis lazuli and diamonds of approx. ct 1,30. French ass

An oval star sapphire cabochon, 23.20 cts. by formula, in strapped platinum and single cut diamond setting with baguette cut diamond shoulder, approx. .80 ct. TW. Ca. 1930. Stamped 10% Irid. Platinum.

Diamond bar brooch : Around 1900 Centered with one old cut diamond of ca. 0.56 ct and in riviere altogether 36 smaller old cut diamonds of total ca. 1.0-1.2 ct. Platinum. Stamped. L. 7.5 cm, 8 g. // D

A vertical arrangement of three diamonds, approx. .15 ct. each, mounted in pierced and engraved platinum with millegrained edges, ca. 1930. Size 6 1/2. 3.6 dwt.

Square emerald sapphire, approx. 3.5 cts. by formula, in strapped single cut diamond and platinum head on 18k white gold hoop, diamond melee approx. .55 ct. TW, France, ca. 1930. French control marks

SPILLA IN PLATINO E DIAMANTI di forma rotonda lavorata a traforo e incastonata a milligrano con al centro un diamante taglio brillante di ct 0,35 ca. impreziosito da diamanti taglio huit-huit di ct 0,

Gelbgold, 14 ct., teilw. platiniert. Schauseitig besetzt mit blauen Farbsteinen und Diamantrosen. Gew. ca. 8,09 g. Brooch set with diamonds and blue stones, in 14 k gold and platinum.

Art Deco Platinum 4.60 Ct. Diamond Brooch Weighing 8.2 grams Set with 3 Marquise Diamonds weighing app. 2.10 Ct. One of the Marquise are GIA Certified Along with 76 European-cut Diamonds weighing app.

1950Õs Platinum 7.70 Ct. Diamond Brooch Weighing 22.0 grams Set with 3 Diamonds weighing app. 1.70 Ct. Along with 78 Diamonds weighing app. 6.00 Ct. F-G Color, VVS-VS Clarity 2 inches in length

346-661 Two Carat Platinum and Diamond Brooch. Art Deco Setting. 2.5" long. World Class item. Would make a stunning Pendant. Good stones, incredible Mine Cut Diamonds.

Art Deco Diamond And Sapphire Brooch, Ca. 1930, W 2" 11g | Diamonds with blue accent sapphires. Center European cut diamond approximately .25ct. Tests 18K. Property of a Grosse Pointe Farms collector.

Edwardian Platinum and Diamond Brooch/Pendant ca. 1910, the circular platinum brooch with an openwork lacy pattern set with a central old European-cut diamond, surrounded by smaller European-cut diamo

Ladies estate Art Deco platinum and approx 10.00 ct total weight diamond convertible brooch / dress clips, the frame allows it to be converted to a matched pair of dress clips, the brooch is hand fabr

Platinum and Approximately 2 CT Diamond Brooch with pendant loops. Diamonds are mixed cut, marquee, brilliant, baguette, single cut and pear shape. Largest diamond measures approximately 0.72 CT, pear

Antique American Art Deco "Inverted Butterfly" Diamond Brooch platinum, ca. 1920, S. Kind & Sons, Philadelphia, Pennsylvania, the Art Deco brooch in the form of an inverted butterfly, mounted with sin

ART DECO SAPPHIRE AND DIAMOND BROOCH, 1930S in platinum, designed as a bow, pave-set with circular-cut diamonds, accented with calibre-cut sapphires, estimated total diamond weight 12.00-14.00 carats,

Estate Art Deco platinum (tested) diamond double-clip brooch, c. 1930s, approx 7.46cttw, two fur or coat clips with pin mechanism to combine into single brooch, featuring pierced work and milgraining,

An Art Deco diamond and platinum brooch circa 1930 designed as a dimensional ribbon bow set with single and old mine-cut diamonds, suspending articulated step-cut diamond fringe, terminating in old mi

Lady's Art Deco Platinum and 3.76 ct Diamond Circle/ Bow Motif Brooch Total Diamond Weight 3.76 cts. Weight 19.90 grams. Estimated total clarity VS1-SI2, Estimated Color G-H. See attachments for addit