Antique Mine Cut Diamond Brooch
to
78
956
523
877
659
659
562
201
141
137
135
130
104
51
45
37
28
23
16
13
11
8
8
7
7
4
4
4
4
2
2
1
1
1
1
1
1
24
16
3
3
3
Sort By
Antique 1880s Victorian Old Mine Cut Diamond Brooch
Located in Cairo, EG
Antique victorian era 1850.c brooch in a circular designe centered with old mine cut diamonds
Category
1850s Antique Mine Cut Diamond Brooch
Platinum Art Deco Onyx & 7.00ct Old Mine Cut Diamond Brooch Brooch
Located in Hicksville, NY
Diamond Details:
GIA Report# : 52229844958
Weight: 1.74
Cut: Old Mine Brilliant
Color: J
Clarity: SI1
Side
Category
1920s Art Deco Antique Mine Cut Diamond Brooch
Materials
Diamond, Platinum
Antique Old Mine Cut Diamond Russian Gold Brooch
Located in Cairo, EG
Antique Russian old mine cut diamond brooch with an estimate diamond weight of 1.20 carats stone
Category
Early 1900s Antique Mine Cut Diamond Brooch
Materials
Diamond, 14k Gold
Victorian Natural Pearl 4.60 Ct Old Mine Cut Diamond Brooch Pendant
Located in Napoli, IT
natural salt water pearl of 7,9 mm – 3 rows of old mine cut diamonds and more 3 old mine cut diamonds on
Category
1860s European Victorian Antique Mine Cut Diamond Brooch
Materials
Diamond, Natural Pearl, 18k Gold, Silver
Antique Old Mine Cut Diamond Russian Gold Brooch
Located in Cairo, EG
Antique Russian old mine cut diamond brooch with an estimate diamond weight of 2.5 carats H color
Category
1880s Antique Mine Cut Diamond Brooch
Materials
Diamond, 14k Gold
Antique Old Mine Cut Diamonds and Quartz Russian Silver Brooch
Located in Cairo, EG
cut diamonds brooch was made in st petersburg 1920.c hall marked 875 silver finest and st petersburg
Category
Early 1900s Antique Mine Cut Diamond Brooch
Antique Gold Silver Diamond Starburst Brooch Pendant
Located in New York, NY
mine cut diamonds. Brooch measures 1.5" x 1.5". Weight - 13.1 grams.
Category
19th Century Antique Mine Cut Diamond Brooch
Materials
Diamond, Gold, Silver
Antique 1880s Lily of the Valley Old Mine Cut Diamond Russian Gold Brooch
Located in Cairo, EG
Antique 14k gold lily of the valley old mine cut diamond brooch with 5 dangling old mine cut
Category
Early 1900s Antique Mine Cut Diamond Brooch
Antique Gold Silver Diamond Flower Brooch Pin
Located in New York, NY
Antique gold and silver floral brooch, with rose and old mine cut diamonds. Brooch is 67 x 31mm
Category
19th Century Antique Mine Cut Diamond Brooch
Materials
Diamond, Gold, Silver
Antique Pearl Diamond and Ruby Gold and Silver Brooch
Located in New York, NY
Antique silver and 14k gold brooch, set with rubies, pearls and approx. 1.10ctw in old mine cut
Category
19th Century Antique Mine Cut Diamond Brooch
Materials
Diamond, Pearl, Ruby, Gold, Silver
1800's Natural Pearl and Diamond Pin
Located in Bay Harbor Islands, FL
Natural pearl and old mine cut diamond brooch set in silver topped gold.
Category
Late 19th Century Victorian Antique Mine Cut Diamond Brooch
Materials
Diamond, Natural Pearl, Gold Plate
Old Mine-cut Diamond Cross Brooch
Located in New York, NY
(weighing approximately 1.60 carats); 218 old mine-cut diamonds (approximate total weight 12.70 carats
Category
Late 19th Century Victorian Antique Mine Cut Diamond Brooch
Materials
Diamond, Gold, Silver
Antique Old Mine-cut Diamond Star Brooch
Located in New York, NY
mine-cut diamonds. It is designed as star with six long arms interspersed with subsidiary arms, set
Category
Late 19th Century English Victorian Antique Mine Cut Diamond Brooch
Materials
Diamond, Gold, Silver
Antique Old Mine Cut Diamond Flower Brooch
Located in Chicago, IL
gold (front – silver, back – gold). It is centered with an old mine cut diamond (6.4 x 6.3 mm
Category
1880s Victorian Antique Mine Cut Diamond Brooch
Materials
Diamond, White Diamond, Gold, 18k Gold, Silver
Art Deco Old Mine Cut Diamond Platinum Brooch
Located in Seattle, WA
An antique original Art Deco brooch with a classic look and elegant details. Eleven graduated
Category
Early 20th Century Art Deco Antique Mine Cut Diamond Brooch
Materials
Diamond, Platinum
Antique 1880s Old Mine Cut Diamond Russian Gold Brooch
Located in Cairo, EG
Antique 14k Gold Russian old mine cut diamonds converted brooch with an estimate diamond weight of
Category
1880s Russian Antique Mine Cut Diamond Brooch
Materials
Diamond, 14k Gold
Antique Old Mine Cut and Rose Cut Diamond Crescent Moon Brooch
Located in New York, NY
An antique Victorian period diamond crescent brooch comprised of old mine-cut and rose-cut diamonds
Category
1870s Victorian Antique Mine Cut Diamond Brooch
Materials
Diamond, 18k Gold, Silver, Sterling Silver
Antique Old Mine Cut Diamond Gold Half Moon Brooch Pin
Located in New York, NY
Antique 18k gold half moon pin brooch, adorned with graduated in size old mine cut diamonds - total
Category
19th Century Antique Mine Cut Diamond Brooch
Materials
Diamond, Gold
Old Mine Cut Diamond Onyx Platinum Brooch
Located in New York, NY
This gorgeous platinum pin from the Art Deco era, is centered with a sparkling old mine cut diamond
Category
Early 20th Century Art Deco Antique Mine Cut Diamond Brooch
Materials
Diamond, Onyx, Platinum
Platinum Pearl & Old Mine Cut Natural Diamond Bar Pin Brooch
Located in Baltimore, MD
Platinum Pearl & Old Mine Cut Natural Diamond Bar Pin Brooch
Metal: 10.46 grams
Pearls: 2.5
Category
Early 20th Century Art Deco Antique Mine Cut Diamond Brooch
Materials
Diamond, Pearl, Platinum
Antique 7 Ct Old Mine Cut Diamond Flower Brooch 1880s
Located in Chicago, IL
gold (front – silver, back – gold). It is centered with an old mine cut diamond (6.4 x 6.3 mm
Category
1880s Victorian Antique Mine Cut Diamond Brooch
Materials
Diamond, White Diamond, Gold, 18k Gold, Silver
18 Karat Yellow Gold & Old Mine Cut Diamond Bar Brooch
Located in Brisbane City, QLD
An exquisite handmade yellow gold and diamond bar brooch set with five Old Mine Cut Diamonds. The
Category
19th Century Victorian Antique Mine Cut Diamond Brooch
Materials
Diamond, Gold, 18k Gold, Yellow Gold
Victorian Old Mine Cut Diamond Crescent Moon with Bow Brooch
Located in Venice, CA
topped and gold backed, encrusted with 56 stunning Old Mine Cut diamonds. The brooch embodies everything
Category
Early 1900s French Victorian Antique Mine Cut Diamond Brooch
Materials
Diamond, 14k Gold, Yellow Gold, Silver
Art Deco Brooch Old Mine Cut Baguette Diamond Double Clip
Located in Berkeley, CA
This exquisite Art Deco Diamond Brooch is full of beautiful baguette diamonds and pristine old mine
Category
Early 20th Century Unknown Art Deco Antique Mine Cut Diamond Brooch
Materials
Diamond, White Gold, Platinum
Gold & Silver Brooch with 3.45 Ct. Old Mine & Rose Cut Diamond
Located in Antwerp, BE
Gold & Silver Brooch with 3.45 Carats Old MIne & Rose Cut Diamonds
Old Mine Diamonds : 2.75 Ct
Category
Early 19th Century European Victorian Antique Mine Cut Diamond Brooch
Materials
Diamond, Gold, Silver
Antique Demantoid And Old Mine Cut Diamonds Crescent Russian Gold Brooch
Located in Cairo, EG
Antique Russian crescent brooch with old mine cut diamonds estimate weight of 1 carat centered with
Category
1890s Unknown Antique Mine Cut Diamond Brooch
Materials
Diamond, 14k Gold
Georgian Old Mine Diamond Brooch
Located in New York, NY
Georgian Old Mine Diamond Brooch
Circa 1830
4.25 ct. of Diamonds, including an Old Mine Cushion
Category
1830s Unknown Georgian Antique Mine Cut Diamond Brooch
Materials
Diamond
Antique Old Mine Cut Diamond Anchor Gold Brooch
Located in Cairo, EG
Antique 14k gold large brooch in anchor design with old mine cut diamonds estimate weight of 3
Category
1890s Antique Mine Cut Diamond Brooch
Antique Deco Old Mine Rose Cut Diamond Sapphire Flower Brooch Pin 4.20cttw
Located in Winter Springs, FL
and set with approximately 4.50cttw in G-I color Vs clarity old mine cut and rose cut diamonds as well
Category
Early 20th Century Unknown Art Deco Antique Mine Cut Diamond Brooch
Materials
Diamond, Platinum
Free Shipping
H 0.75 in L 2 in
Antique Diamond Brooch Oak Leaf Gold Silver Old Mined Cut Diamond 1860
Located in Berlin, DE
A mid-Victorian diamond oak leaf brooch, circa 1860s. Set in yellow gold and silver, with a
Category
1860s French Napoleon III Antique Mine Cut Diamond Brooch
Materials
Diamond, Gold, Yellow Gold, Silver
Free Shipping
W 1.03 in L 1.78 in
Victorian Dome Brooch 18k Yellow Gold Set with 2.60ctw Of Old Mine Cut Diamonds
Located in Tampa, FL
Victorian Dome Brooch in 18k Yellow Gold with 2.60ctw Old Mine Cut Diamonds
This exquisite
Category
1890s Victorian Antique Mine Cut Diamond Brooch
Materials
Diamond
Free Shipping
W 1 in L 1 in
Antique 1880s Lily of the Valley Old Mine Cut Diamond Russian Gold Brooch
Located in Cairo, EG
Antique Russian lily of the valley brooch with old mine cut diamonds with an estimate diamond
Category
1890s Russian Antique Mine Cut Diamond Brooch
Materials
Diamond, 14k Gold
Victorian Old Mine Cut Diamond Silver on Gold Round Cluster Antique Brooch
Located in London, GB
adorned with an array of old cut diamonds, estimated to weight approximately 2.60ct combined, that glisten
Category
1910s Late Victorian Antique Mine Cut Diamond Brooch
Materials
Diamond, Gold, 18k Gold, Yellow Gold, Silver
Antique Old Mine Cut Diamond Silver on Gold Brooch and Pendant, circa 1880
Located in London, GB
Beautiful antique flower brooch/pendant featuring 31 old mine cut diamonds with a total approximate
Category
1880s Unknown Victorian Antique Mine Cut Diamond Brooch
Materials
Diamond, Gold, Silver
Antique Victorian 18k Gold Old Mine Cut Diamond Black Enamel Cluster Pin Brooch
Located in Montclair, NJ
mine cut diamonds gently dangle below in their buttercup prong settings along with an elegant gold work
Category
Early 1900s Victorian Antique Mine Cut Diamond Brooch
Materials
Diamond, 18k Gold, Enamel
Free Shipping
H 1.4 in W 1 in
Antique 1880s Old Mine Cut Diamond Russian Gold Brooch
Located in Cairo, EG
Antique 1880s imperial russian era brooch with old mine cut diamonds estimate weight of 2 carats H
Category
1880s Antique Mine Cut Diamond Brooch
Antique 1880s Old Mine Cut Diamond Russian Gold Brooch
Located in Cairo, EG
Antique 14k gold brooch on tremblant designe with old mine cut diamonds H colour white vs clearity
Category
1890s Antique Mine Cut Diamond Brooch
Antique 1880s Old Mine Cut Diamond Russian Gold Brooch
Located in Cairo, EG
Antique 14k russian brooch centered with 3 old mine cut diamonds with estimate weight of 0.30
Category
1870s Antique Mine Cut Diamond Brooch
Antique 19th Century Old Mine Cut Diamond Crescent Moon Star Brooch Yellow Gold
Located in Lisbon, PT
Antique 19th century Old Mine-cut Diamond crescent moon with star brooch / pendant in yellow gold
Category
Mid-19th Century Unknown Victorian Antique Mine Cut Diamond Brooch
Materials
Diamond, Gold, Yellow Gold
Free Shipping
W 1.19 in L 1.19 in
Oak Diamond Brooch Mid-Victorian Gold Silver Old Mined Cut Diamonds Gift Unisex
Located in Berlin, DE
A mid-Victorian diamond oak leaf brooch, circa 1860s. Set in yellow gold and silver, length 45 mm
Category
1860s French Napoleon III Antique Mine Cut Diamond Brooch
Materials
Diamond, Gold, Yellow Gold, Silver
Free Shipping
W 1.03 in L 1.78 in
Vintage Art Deco Old Mine Cut Diamond Filigree Brooch 14 Karat White Gold
Located in Scottsdale, AZ
Gold
Closure: Hinged stick pin
Natural Diamonds: .45 ctw
Diamond Cut: Old Mine
Diamond Color: G-H-I
Category
Early 20th Century Unknown Art Deco Antique Mine Cut Diamond Brooch
Materials
Diamond, Gold, 14k Gold, White Gold
Free Shipping
W 0.9 in L 2.16 in
Brooch with old mine cut diamonds up to 8.00ct 18k pink gold and silver
Located in The Hague, ZH
18k yellow gold with silver branch brooch set with old mine cut and rose cut diamonds. 8.00ct - G/H
Category
1880s Dutch Early Victorian Antique Mine Cut Diamond Brooch
Materials
Diamond, Gold, 18k Gold, Silver
Free Shipping
W 2.52 in L 3.35 in
Brooch set with old mine cut diamonds up to 1.20ct 14k white gold with platinum
Located in The Hague, ZH
14k white gold with platinum brooch set with Old Mine cut Diamonds up to 1.20 carat - 5.4 cm x 2.9
Category
1910s Dutch Art Nouveau Antique Mine Cut Diamond Brooch
Materials
Diamond, White Gold, Platinum
Free Shipping
W 2.13 in L 1.15 in
Art Deco Old Mine Cut Diamond Blue Enamel Bar Brooch Pin Antique Edwardian Box
Located in New York, NY
lined box from London. The gorgeous brooch is centered by the sparkling white Old Mine Cut Diamond
Category
Early 20th Century Unknown Art Deco Antique Mine Cut Diamond Brooch
Materials
Diamond, Gold, 14k Gold, White Gold, Enamel
Antique Old Mine Cut Diamond Russian Gold Brooch And Pendant
Located in Cairo, EG
Antique 14k gold russian brooch pendant in artnovo style open work with estimate old mind cut
Category
1890s Antique Mine Cut Diamond Brooch
Brooch with pearls and old mine cut diamonds up to 0.35ct 14k gold and silver
Located in The Hague, ZH
14k yellow gold with silver brooch/pendant with pearls and old mine cut diamonds. 0.35ct - K/L - SI
Category
1880s Dutch Early Victorian Antique Mine Cut Diamond Brooch
Materials
Diamond, Pearl, 14k Gold, Silver
Free Shipping
W 1.15 in L 2.45 in
Vintage Old Mine Cut Diamond Filigree Bar Pin Brooch Platinum and 14 Karat Gold
Located in Scottsdale, AZ
. The stunning pin features a single Old Mine Cut diamond (H-SI1) bezel set at the center of the piece
Category
Early 20th Century Unknown Edwardian Antique Mine Cut Diamond Brooch
Materials
Diamond, Gold, 14k Gold, White Gold, Platinum
Free Shipping
W 0.45 in L 2.63 in
Victorian Old Cut Diamond Brooch
Located in London, GB
This is a wonderful diamond brooch from the Victorian era. The brooch is set with multiple old cut
Category
19th Century Victorian Antique Mine Cut Diamond Brooch
Materials
Diamond, Gold, Yellow Gold
Antique Victorian Old Mine Diamond Gold Platinum Crescent Moon Brooch
Located in New York, NY
Antique Victorian 18k gold and platinum crescent moon brooch, featuring old mine cut diamonds
Category
19th Century Victorian Antique Mine Cut Diamond Brooch
Materials
Diamond, Gold, Platinum
Victorian 3.10 Ct Old Mine Diamond Symbolic Crescent Moon Brooch
Located in Napoli, IT
period, beautifully adorned by a rich selection of Old Mine cut Diamonds, all bright white full of
Category
1870s European Victorian Antique Mine Cut Diamond Brooch
Materials
Diamond, 10k Gold
Etruscan Revival 15K Gold Bar Brooch w/ Mine Cut Diamonds, U.K., Circa 1870's
Located in Chatham, CA
Victorian Etruscan Revival 15K yellow gold bar brooch/pin - set with three old mine cut diamonds
Category
Late 19th Century British Etruscan Revival Antique Mine Cut Diamond Brooch
Materials
Diamond, 15k Gold, Yellow Gold
Free Shipping
H 0.5 in W 1.63 in D 0.38 in
Vintage Old Mine Brilliant Diamond and Pearl Pin/Brooch
Located in Hicksville, NY
Item Details:
Metal Type: 14k Yellow Gold [Tested]
Weight: 5.6 grams
Diamond Details:
Weight
Category
1890s American Victorian Antique Mine Cut Diamond Brooch
Materials
Diamond, Pearl, 14k Gold
Old Mine Cut Diamond Bar Brooch, 1.75 Carats in 14K Gold and Sterling Silver Lv
Located in Austin, TX
around 1875, ten old mine cut diamonds sit in individual silver crowns, each with their own unique hand
Category
Late 19th Century American Victorian Antique Mine Cut Diamond Brooch
Materials
Diamond, 14k Gold, Yellow Gold, Sterling Silver
Free Shipping
W 0.2 in L 3 in
Edwardian Old Mine Diamond Wishbone Brooch Pin Pendant 14K Gold
By Estate Jewelry
Located in East Brunswick, NJ
Edwardian Old Mine Diamond Wishbone Brooch Pin Pendant 14K Gold
This gorgeous Edwardian circa 1890
Category
Early 20th Century Antique Mine Cut Diamond Brooch
Materials
Diamond, 14k Gold, Yellow Gold, Platinum
Edwardian Old Mine Diamond Horseshoe Brooch Pin 18k Gold & Platinum
By Estate Jewelry
Located in East Brunswick, NJ
Old Mine Diamond Horseshoe Brooch Pin 18K Gold Platinum Edwardian
This gorgeous Edwardian circa
Category
Early 1900s Edwardian Antique Mine Cut Diamond Brooch
Materials
Diamond, 18k Gold, Platinum
Victorian 14k Gold 2.40 Carat Old European and Mine Cut Diamond Pendant Brooch
Located in Montclair, NJ
cut diamond prong set at its center. The brooch is structured into a petite floral design with
Category
1890s Victorian Antique Mine Cut Diamond Brooch
Materials
Diamond, 14k Gold
Free Shipping
H 1.23 in W 1.03 in
Antique Old European, Old Mine and Rose Cut Diamond Mixed Metal Swirl Brooch
Located in Scottsdale, AZ
Diamond Cut: Old Mine, Old European, & Rose
Diamond Total Carat Weight: 1.53 CT
Diamond Color: G-K
Category
Late 19th Century Unknown Victorian Antique Mine Cut Diamond Brooch
Materials
Diamond, Gold, 10k Gold, Yellow Gold, Silver, Copper, Mixed Metal
Free Shipping
W 1 in L 1.5 in
Antique French Old Mine Cut Diamond and Pearl Enamel Shell Gold Brooch
Located in Cairo, EG
diameter flanked with old mine cut diamonds and colorful enamel hall marked with 19th century french owl
Category
1890s European Antique Mine Cut Diamond Brooch
Bespoke Old Cut Diamond Bar Brooch 0.95ct
Located in SYDNEY, NSW
An Old Cut Diamond Bar Brooch, bezel set in platinum on 18ct white gold with 12 rose cut diamonds
Category
1920s Antique Mine Cut Diamond Brooch
Materials
Diamond, White Gold, Platinum
1890s 18K Yellow Gold Enamel and Old Mine Diamond Flower Brooch
Located in Hicksville, NY
Details: .50ct total weight, old mine brilliant cut, natural diamonds, G Color, VS Clarity
Pin
Category
1890s Victorian Antique Mine Cut Diamond Brooch
Materials
Diamond, Gold, 18k Gold, Yellow Gold, Enamel
- 1
- ...
Get Updated with New Arrivals
Save "Antique Mine Cut Diamond Brooch", and we’ll notify you when there are new listings in this category.
Antique Mine Cut Diamond Brooch For Sale on 1stDibs
Find the exact antique mine cut diamond brooch you’re shopping for in the variety available on 1stDibs. Frequently made of Gold, Yellow Gold and Platinum, this item was constructed with great care. If you’re looking for an antique mine cut diamond brooch from a specific time period, our collection is diverse and broad-ranging, and you’ll find at least one that dates back to the 19th Century while another version may have been produced as recently as the 20th Century. An antique mine cut diamond brooch from Cartier and Chaumet — each of whom created a beautiful version of this treasured accessory — is worth considering. An old mine cut version of this piece has appeal, but there are also antique cushion cut and old european cut versions for sale. When shopping for an antique mine cut diamond brooch, you’ll find that there are less available pieces for unisex or men today than there are for women.
How Much is a Antique Mine Cut Diamond Brooch?
Prices for an antique mine cut diamond brooch can differ depending upon size, time period and other attributes — at 1stDibs, these accessories begin at $325 and can go as high as $47,000, while this accessory, on average, fetches $2,800.
Finding the Right brooches for You
Antique and vintage brooches, which are decorative jewels traditionally pinned to garments and used to fasten pieces of clothing together where needed, have seen increasing popularity in recent years.
Given their long history, brooches have expectedly taken on a variety of different shapes and forms over time, with jewelers turning to assorted methods of ornamentation for these accessories, including enameling and the integration of pearls and gemstones.
Cameo brooches that originated during the Victorian age are characterized by a shell carved in raised relief that feature portraits of a woman’s profile, while 19th-century micromosaic brooches, comprising innumerable individually placed glass fragments, sometimes feature miniature depictions of a pastoral scene in daily Roman life.
At one time, brooches were symbols of wealth, made primarily from the finest metals and showcasing exquisite precious gemstones. Today, these jewels are inclusive and universal, and you don’t have to travel very far to find an admirer of brooches. They can be richly geometric in form, such as the ornate diamond pins dating from the Art Deco era, or designer-specific, such as the celebrated naturalistic works created by Tiffany & Co., the milk glass and gold confections crafted by Trifari or handmade vintage Chanel brooches of silk or laminated sheer fabric.
Brooches are versatile and adaptable. These decorative accessories can be worn in your hair, on hats, scarves and on the lower point of V-neck clothing. Pin a dazzling brooch to the lapel of your blazer-and-tee combo or add a cluster of smaller pins to your overcoat. And while brooches have their place in “mourning jewelry,” in that a mourning brooch is representative of your connection to a lost loved one, they’re widely seen as romantic and symbolic of love, so much so that a hardcore brooch enthusiast might advocate for brooches to be worn over the heart.
Today, find a wide variety of antique and vintage brooches on 1stDibs, including gold brooches, sapphire brooches and more.
Read More
This Gem-Encrusted Boucheron Brooch Is a Symbol of Mid-Century Glamour and Clever Design
Though it sparkles with more than 27 carats of diamonds, this multifaceted gem delivers more than just dazzle.
The Editor of ‘Town & Country’ Loves Jewelry and History in Equal Measure
Stellene Volandes takes us on a glittering, engrossing tour through the centuries.
5 Fresh Jewelry Trends That Will Bring You Joy This Spring
From cameos to cigar bands, here are the looks on our radar this season.
Tastemaker Bunny Mellon’s Extraordinary Schlumberger Jewels
The philanthropist and heiress was an avid jewelry collector, and her trove of Jean Schlumberger creations embodies the love of nature she shared with the famed designer.
More Ways To Browse
Diamond Snow Flake
Gold Carriage Brooch
Miner Gold Brooches
Tiffany Brooch 1910
Victorian Diamond Spray Brooch
Antique Diamond Solitaire Pendant
Diamond Sword Pin
Enamel Orchid Brooch
Trefoil Diamond Earrings
3 Petal Brooch With Pearl
Antique Snowflake Jewelry
Half Moon Brooch
Antique Flaming Heart
Diamond Sunburst Brooch
Oak Leaf Brooch
Ruby Circle Pin
World Of Faberge Egg Imperial
Diamond Snowflake Brooch