Square Cut Brooches

An evocative example of French Art Nouveau jewelry, this petite brooch encapsulates the movement’s signature obsession with fluid, botanical forms. Crafted in 14-karat yellow gold (c...

14k yellow gold brooch with jade – 12.9 grams Detailed description: The brooch measures 8.0 cm long by 1.7 cm wide in a rectangular shape. Weight: 12.9 grams Set with: - 1 x 7.3...

Oscar Heyman platinum Union Jack flag lapel pin contains custom cut rubies (0.76cts), sapphires (0.64cts) and round diamonds (0.05cts). It is a gently w...

This brooch features a leaf design adorned with a single square-cut green emerald and multiple round white diamonds. Stone Info: 1x Emerald ~0.16ct 60x Diamonds VS1/G ~0.04ct/ea To...

Ruby 9.33 carats with Diamond 0.71 carat Brooch/Pendant set in 18 Karat Gold Settings (chain not included) Width: 2.7 cm Length: 3.8 cm "Since we first opened doors in 1980 our st...

A sophisticated study in line and movement, this 1950s brooch is composed as a flowing ribbon of carré-cut diamonds and vivid red rubies, each row precisely aligned to create a sens...

This design brooch we intent for everyday use as simply elegant. So you can pin many occasions. It looks not too much but it looks classic and precious. We use the top quality ruby w...

This enchanting brooch is meticulously crafted, featuring a stunning array of vibrant gemstones. The body of the dragonfly is elegantly adorned with a rich emerald, while its tail sp...

Pre owned vintage estate 18K yellow gold deep intense blue sapphire bee pin. The body of the bee has 39 invisibly set square cut blue sapphires with an a...

This outstanding Collectable flower brooch pin was designed by Sabbadini, Italy. It is handcrafted in solid 18K yellow gold weighing approx. 69.9 grams. It features a flowerhead desi...

--Stone(s):-- Numerous Natural Genuine Sapphires - Square Step Cut & Calibre Cut - Mystery Invisible Set - True Royal Blue Color (11) Natural Genuine Diamonds- Round Brilliant Cut - ...

Designed as a fanning shell with grooved fluted texture featuring channel set square step-cut rubies Weighing approximately 0.70 carats - transparent medium purplish red in color Acc...

Simply Beautiful! Finely detailed 1960s Iconic Tiffany & Co. Designer Ruby Open Square Gold Brooch. Accented by Securely Hand set .60tcw Rubies. Hand crafted in 14K Yellow Gold. Meas...

Victorian bar pin with calibre set turquoise in 14k gold. Nice Etruscan work decoration. 1880's USA. Excellent Condition. Length 2 3/16" x Width 5...

Ruby 27.20 carats, Diamond 2.65 carats with Yellow Diamond 0.07 carat and Black Diamond 0.015 carat Brooch/ Pendant set in 18 Karat White Gold Settings (chain not included) Width: ...

Here we have a delightful sapphire and diamond jabot pin from the world renowned luxury jewellery house of Cartier. This Art Deco piece has been expertly crafted into the shape of a...

The perfect brooch for 2020. Our American flag brooch set with round brilliant diamonds and square cut rubies and sapphires. the brooch measures approximat...

This magnificent antique bow pin brooch was crafted in solid platinum during the art deco period. It is adorned with with large and fine quality...

--Stone(s):-- (3) Natural Genuine Ruby - Square Step Cut - Channel Set - Vivid Pinkish Red Color (3) Natural Genuine Diamonds - Single Cut - Pave Set Material: 14k Solid Rose, Yel...

Here we have a remarkable Renaissance brooch circa. 1680, showcasing a captivating design. This piece features a single table-cut diamond at the centre. This principal stone sits sli...

Era: Art Deco Date: 1920s - 1930s Metal Content: Platinum & 14k Yellow Gold Stone Information Natural Sapphire Treatment: Heating Carat(s): .15ct Cut: Square Step Color: Blue ...

Started in the 1940's Sabbadini of Italy is known throughout the world for their artisinal excellence and creative design. Their creativity shines in this 18 karat yellow gold lady bug brooch. The wings art...

This intricately designed pavé-set diamond flower brooch with extending calibré-cut sapphire undulating petals comprises of approximately 40ct of square cut, invisible set sapphires ...

Retro classic 18k gold brooch by Boucheron Paris, set with invisible set sapphires and approx. 0.80ctw G/VS diamonds. Brooch measures 1 3/8" x 0.75". Mar...

Circa 1960s Oscar Heyman Platinum Circle Brooch, set with Round Brilliant cut Diamonds totaling 1 Carat and Fine color French cut sapphires. The brooch measures 1 3/8 inch in diameter.

A fine and impressive antique 0.30 carat ruby and 0.18 carat diamond, 9 karat yellow gold pin brooch; part of our diverse antique jewelry collection. This impressive ruby pin has been crafted in 9k yellow gold with silver settings. The brooch setting has been modelled in the form of a horseshoe displaying twelve yellow gold channel set square cut rubies, totalling 0.30 carat. The horseshoe setting is further accented by a nine Old European cut diamonds, silver pavé set in three clusters of three in alternation with the rubies, totalling 0.18 carat. The yellow gold pin is plain and secures to the reverse of the feature setting. This ruby and diamond brooch is supplied with an independent diamond grading report certificate. The diamond and ruby pin...

An Edwardian peridot and diamond brooch, of quatrefoil design, centered with a square-shaped peridot within a foliate scroll surround set with old ci...

Finely crafted in 18k white and yellow gold with a GIA certified Square Emerald cut Diamond weighing 2.50 carats, H color, SI2 clarity, GIA #5202409731. The brooch features pave-set ...

A pair of Retro scroll design gold clip brooches set with square-cut sapphires and round diamonds, in platinum and 18k. Signed Boucheron, Paris.

This charming insect brooch from the Haruni Vaults is handmade in 18k yellow gold with deep blue sapphires forming the body, pave-set sparkling diamonds in the wings, and round ruby ...

Fancy cut white diamonds are border with fine natural sapphires and rubies. A spectacular long brooch with fine well matched and well cut stones. The 34 diamonds weigh an estimated 3...

Finely crafted in platinum with a Square cut Diamond at the center weighing approximately 1.00 carat, smaller Square and Old European cut Diamonds weighing approximately a total of 7...

--Stone(s):-- (6) Natural Genuine Ruby - Square Step Cut - Channel Set - Pinkish Red Color - Most Likely Burma Origin - 2.4mm each (approx.) Material: Solid 14k Rose & Green Gold To...

A stunning, fine and impressive antique 1.60 carat emerald, 4.22 carat diamond, 12 karat yellow gold and silver set star brooch/pendant; part of our diverse antique Victorian brooches collection. This stunning, fine and impressive antique Victorian brooch/pendant has been crafted in 12k yellow gold with a silver setting. The convex stellate design is ornamented with a feature central claw set 1.61ct square faceted cut emerald. The feature gemstone is encompassed with an inverted scalloped setting ornamented with eight pavé set Old European round cut diamonds, accented with elongated star...

Exceptional Victorian Etruscan Revival Micro Mosaic Swan Brooch Depiction of two playful swans floating in water amongst flowers and foliate entirely...

Finely crafted in 18k white gold with invisible set Rubies weighing approximately a total of 22.00 carats, as well as Round Brilliant and Square cut Diamonds weighing approximately a...

Tsavorite 11.74 carats, Ruby 30.54 carats, Blue Sapphire 4.05 carats, Diamond 2.03 carats Brooch set in 18 Karat Gold Settings Width: 3.2 cm Length: 10.2 cm "Since we first opene...

Tiffany & Co. 14K Gold Ruby Bow Clip Earrings & Brooch Marked: TIFF & Co. 14K Approximate Dimensions: Earrings 2.6 cm (Length) 1.2 cm (Width) Approx.0.48 carat (Ruby) 7.1 grams ...

Van Cleef & Arpels Ruby and Diamond Brooch White Gold Chevrons set with calibre-cut rubies and round diamonds. Details: 18K white gold Single-cut diamonds with approx. total weight...

An antique Russian emerald and diamond dragonfly brooch, the body a square-cut emerald with estimated weight 0.6 carats, the tail set with twelve emeralds and four diamonds, the wings and legs set with old-cut and rose-cut diamonds, the eyes a pair of cabochon-cut rubies, estimated total diamond weight 4 carats, all set in silver and yellow gold, with gold brooch fitting, bearing Russian hallmark, circa 1910, measuring approximately 5.5x7cm, gross weight 13.3 grams. This brooch is in very good condition. Unmarked, tested as 18ct gold and silver with 14ct brooch fitting . This beautiful Antique Russian brooch...

Ruby 18.46 carats, Diamond 2.08 carats, Cabochon Ruby 0.46 carat with Cabochon Blue Sapphire 0.29 carat Brooch set in 18 Karat Gold Setting Width: 3.7 cm Length: 7.0 cm "Since w...

This lovely Cellini 18 karat yellow gold apple brooch has been invisibly set with vibrant square cut pink sapphires. The stem is set with square diamonds and the leaf with round bril...

An emerald, diamond and onyx Art Deco brooch, ca. 1920, in platinum. The facetted square emerald weighs 2.14 carats and is of Columbian origin. It has an old mine vivid green colour...

Started in the 1940's Sabbadini of Italy is known throughout the world for their artisinal excellence and creative design. Their creativity shines in this 18 karat yellow gold lady bug brooch...

--Stone(s):-- (1) Natural Genuine Citrine - Square Step Cut - Prong Set - Orange Color - 10x8.1mm (approx.) Material: Solid 14k Rose & Green Gold Total Weight: 14.36 Grams Overall H...

Started in the 1940's Sabbadini of Italy is known throughout the world for their artisinal excellence and creative design. Their creativity shines in this 18 karat yellow gold lady bug brooch. The wings art artfully set with square cut pink and blue sapphires . The body is hi polished yellow gold with pink sapphire cabochons...

A ruby and diamond 18k yellow gold clip by VCA from the retro period, 1950s. It has fine round brilliant solitaire diamonds, weighing approximately 3 carats, and ruby carrés. The cli...

Antique 18 karat yellow gold bar pin with platinum top. Pin measures 2 1/2 ” long x 1/4 ” wide. Pin has 8 (eight) Old Mine Cut Diamonds weighing approx. 0.16 carat total. 8 (ei...

18 karat yellow gold frog brooch beautifully set with 6.12 carats of invisibly set square pink sapphires and 0.70 carats of round diamonds. The e...

A vintage bar brooch dating to the 1970s, crafted in 18KT white gold. The brooch is designed with a central square step-cut Topaz, mounted within a geometric diamond-set frame. The t...

A very charming penguin pin from the Vintage (ca1960s) era! Crafted in 18k yellow gold, this wonderful piece portrays the shape of a penguin. The head, arms, and feet of the bird are...

This Tiffany & Co. Art Deco platinum pin sounds exquisite! Featuring 10 diamonds with a total of 0.90 carats, graded D-E color and VS clarity, combined with 8 royal blue square sapph...

Adorable platinum bird brooch by Oscar Heyman, set with carved ruby, enamel accents and approx.0.85ctw FG/VS diamonds. Brooch measures 1 3/16" x 7/8". Hallmarked 980 91 serial number...

Constructed with platinum and 14k gold, the brooch features square-cut green peridot stones. The design showcases intricate openwork patterns, accentuated by the vibrant hue of the p...

A graceful Edwardian brooch designed in the refined swag style, delicately composed of platinum. At the center rests a square-cut peridot of lively green hue, accented by diamond-set...

Open Mouth Fish Brooch / Pendant Set With Diamonds, Ruby , Sapphire, Emerald Attached to the jewel is a hinge to be used as a pendant when wanted. Diamonds: 133 brilliant cut diam...

Beautiful Antique Art Deco Platinum Yogo Gulch Sapphire Old Euro Diamond Bar Pin - GIA. This incredible Art Deco Yogo sapphire bar pin is crafted in platinum. The pin features twelve...

A striking brooch from the late 1930's depicting a vibrant bird perched on a golden branch, crafted in 18k yellow gold. The bird's wings and tail are adorned with squares shape ruby,...

Retro 14k gold brooch by Cartier, with 5 blue sapphires and approx. 0.10ctw in diamonds. Brooch measures 1 1/16" x 7/8". Marked: Cartier, 14k. Weight - 10.7 grams. Iconic Retro desig...

Ruby and diamond brooch in 18K yellow gold featuring mystery-set ruby hat design with diamond accents and figural bow detail. Convertible design functions as brooch or pendant, measu...