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Petite Georgian Diamond & 18K Gold Flower Brooch - France - Circa 1819-38
Petite Georgian Diamond & 18K Gold Flower Brooch - France - Circa 1819-38

Petite Georgian Diamond & 18K Gold Flower Brooch - France - Circa 1819-38

Located in Chatham, CA

Exceptional petite Georgian era diamond and 18K rose and yellow gold flower brooch - featuring nine old mine cut diamonds in solid silver crimped collet settings to form the flower h...

Category

Antique Early 19th Century French Georgian Brooches

Materials

Diamond, 18k Gold, Rose Gold, Yellow Gold, Sterling Silver

1980s Vintage Malachite Sapphire Diamond 18K Gold Convertible Brooch Pendant
1980s Vintage Malachite Sapphire Diamond 18K Gold Convertible Brooch Pendant

1980s Vintage Malachite Sapphire Diamond 18K Gold Convertible Brooch Pendant

By SCALA GIOIELLI

Located in Marcianise, IT

Technical Details Period: 1980s / Late 20th Century Vintage Design: Figurative Wise Owl with a Heart-Shaped Body (Animalier) Dual Functionality: Convertible Brooch / Pendant Met...

Category

Vintage 1980s Italian Artisan Brooches

Materials

Diamond, Malachite, Sapphire, 18k Gold, Yellow Gold

Edwardian Diamond and Pearl Pendant Brooch Necklace, Platinum, 6ct
Edwardian Diamond and Pearl Pendant Brooch Necklace, Platinum, 6ct

Edwardian Diamond and Pearl Pendant Brooch Necklace, Platinum, 6ct

Located in Braintree, GB

The centre stone sits in a pierced collet within a diamond set surround, framed by two opposed scrolls carrying graduated old cuts in millegrained settings.

Category

Antique Early 1900s Edwardian Pendant Necklaces

3.32 Carat Old Victorian Cushion Cut Diamond 18 Carat Gold Engagement Ring
3.32 Carat Old Victorian Cushion Cut Diamond 18 Carat Gold Engagement Ring

3.32 Carat Old Victorian Cushion Cut Diamond 18 Carat Gold Engagement Ring

Located in London, GB

Beautiful hand made engagement ring set with an old Victorian cushion cut diamond weighing 3.32 carats set in a four, triple claw open back collet.

Category

2010s English Edwardian Engagement Rings

Materials

Diamond, Gold, 18k Gold, White Gold

David Webb 18K Yellow Gold Black Enamel, Diamond And Coral Barrel Shaped Earring
David Webb 18K Yellow Gold Black Enamel, Diamond And Coral Barrel Shaped Earring

David Webb 18K Yellow Gold Black Enamel, Diamond And Coral Barrel Shaped Earring

By David Webb

Located in New York, NY

These are barrel-like shaped earrings mounted with carved coral, collet-set diamonds, black enamel, 18K gold, and platinum. 0.75 inches long.

Category

20th Century American Modern Clip-on Earrings

Materials

Coral, Diamond, Yellow Gold, Enamel

Antique 19th Century Old Mine Diamond Floral Cluster Cocktail Ring Silver Gold
Antique 19th Century Old Mine Diamond Floral Cluster Cocktail Ring Silver Gold

Antique 19th Century Old Mine Diamond Floral Cluster Cocktail Ring Silver Gold

Located in Lisbon, PT

This antique jewel is modelled as a scalloped flower, with a wide and bold circular design with scalloped borders, this ring features a larger Old Mine-cut diamond in a step-down col...

Category

Antique 1880s Unknown Victorian Cocktail Rings

Materials

Diamond, Gold, Yellow Gold, Silver

Tiffany & Co.Platinum & 18K Yellow Gold Schlumberger Paillonne Diamond Bangle
Tiffany & Co.Platinum & 18K Yellow Gold Schlumberger Paillonne Diamond Bangle

Tiffany & Co.Platinum & 18K Yellow Gold Schlumberger Paillonne Diamond Bangle

By Jean Schlumberger for Tiffany & Co.

Located in New York, NY

Designed as a Black paillonné enamel hinged bangle, decorated with collet-set diamonds and sculpted gold vertical bands, 6 3/4 to 7 inches ins. inner diameter, mounted in platinum a...

Category

21st Century and Contemporary French Retro Bangles

Materials

Diamond, 18k Gold, Yellow Gold, Platinum, Enamel

Antique Fairy Angel Pendant Rose Cut Diamond Sapphire Platinum Mother of Pearl
Antique Fairy Angel Pendant Rose Cut Diamond Sapphire Platinum Mother of Pearl

Antique Fairy Angel Pendant Rose Cut Diamond Sapphire Platinum Mother of Pearl

Located in New York, NY

At the top is another collet set Rose Diamond which leads to the Diamond set bale.

Category

Early 20th Century Unknown Belle Époque Pendant Necklaces

Materials

Diamond, Pearl, Sapphire, Gold, 18k Gold, Platinum

Art Deco Opal Rose Cut Diamond Earrings 14 Karat Gold Antique
Art Deco Opal Rose Cut Diamond Earrings 14 Karat Gold Antique

Art Deco Opal Rose Cut Diamond Earrings 14 Karat Gold Antique

Located in New York, NY

At the bottom of the earrings is a wonderful quatrefoil design set with diamonds in cut down collets. The design of these earrings with the vivid radiant opals surrounded by antique...

Category

20th Century Unknown Art Deco Clip-on Earrings

Materials

Opal, Diamond, Gold, 14k Gold, Yellow Gold

Antique Child & Child Renaissance Revival Rose Cut Diamond Baroque Pearl Pendant
Antique Child & Child Renaissance Revival Rose Cut Diamond Baroque Pearl Pendant

Antique Child & Child Renaissance Revival Rose Cut Diamond Baroque Pearl Pendant

By Child & Child

Located in New York, NY

The design is absolutely stunning with the open work set throughout with Rose Cut Diamonds in cut down collet settings. In the center is a hanging Baroque Pearl.

Category

Early 20th Century British Renaissance Revival Pendant Necklaces

Materials

Diamond, Pearl, Gold, Silver

Victorian Colombian Emerald and Diamond Cluster Ring, 9KT Gold and Silver
Victorian Colombian Emerald and Diamond Cluster Ring, 9KT Gold and Silver

Victorian Colombian Emerald and Diamond Cluster Ring, 9KT Gold and Silver

Located in Braintree, GB

The emerald is rub over set within a fine milgrain collet, with the diamond border rising and falling in scallops around it and a squared panel of four diamonds carried down each sho...

Category

Antique Late 19th Century Victorian Cluster Rings

Materials

9k Gold

Art Deco Style Platinum Sapphire and Diamond Scalloped Cluster Ring
Art Deco Style Platinum Sapphire and Diamond Scalloped Cluster Ring

Art Deco Style Platinum Sapphire and Diamond Scalloped Cluster Ring

Located in Braintree, GB

Art Deco style platinum ring, the round plaque set with an oval sapphire within scalloped panels of calibre cut sapphire and diamond. An oval sapphire is collet set at the centre of...

Category

2010s Art Deco Cluster Rings

Materials

Platinum

Art Deco Style Platinum Mozambique Ruby and Diamond Navette Ring
Art Deco Style Platinum Mozambique Ruby and Diamond Navette Ring

Art Deco Style Platinum Mozambique Ruby and Diamond Navette Ring

Located in Braintree, GB

Art Deco style platinum navette ring, the oval ruby centre framed by marquise cut rubies and diamonds. An oval ruby is collet set at the centre of a small pointed navette plaque, an...

Category

2010s Art Deco Fashion Rings

Materials

Platinum

Rare Georgian Rose Cut Diamond Pendant circa 1700 14 Karat Gold Dutch Necklace
Rare Georgian Rose Cut Diamond Pendant circa 1700 14 Karat Gold Dutch Necklace

Rare Georgian Rose Cut Diamond Pendant circa 1700 14 Karat Gold Dutch Necklace

Located in New York, NY

It is 45 mm (1 3/4 inches) wide at the widest point. The rose cut diamonds are set in silver collets atop 14 Karat gold.

Category

Antique 18th Century Dutch Georgian Pendant Necklaces

Materials

Diamond, 14k Gold, Gold, Yellow Gold, Silver

Antique Victorian 15ct Gold Turquoise Pearl Diamond Swag Necklace in Fitted Box
Antique Victorian 15ct Gold Turquoise Pearl Diamond Swag Necklace in Fitted Box

Antique Victorian 15ct Gold Turquoise Pearl Diamond Swag Necklace in Fitted Box

Located in New York, NY

These diamonds are set in Georgian collet-style silver settings, providing a bright contrast against the gold.

Category

Antique Late 19th Century British Victorian Choker Necklaces

Materials

Diamond, Pearl, Turquoise, 15k Gold, Yellow Gold, Gold

Victorian Rose Cut Diamond Day/Night Earrings Heart Dangle 14 Karat Gold Rare
Victorian Rose Cut Diamond Day/Night Earrings Heart Dangle 14 Karat Gold Rare

Victorian Rose Cut Diamond Day/Night Earrings Heart Dangle 14 Karat Gold Rare

Located in New York, NY

Finding early earrings with rose cut diamonds is very rare. The top heart motif portions are each set with a rose cut diamond in a raised collet with prong setting.

Category

Antique 19th Century Spanish Victorian Drop Earrings

Materials

Diamond, Gold, Yellow Gold, 14k Gold

Rose Cut Diamond Cameo Pendant Brooch French 18 Karat Gold Victorian Hardstone
Rose Cut Diamond Cameo Pendant Brooch French 18 Karat Gold Victorian Hardstone

Rose Cut Diamond Cameo Pendant Brooch French 18 Karat Gold Victorian Hardstone

Located in New York, NY

On either side of the pearls are rose cut diamonds. The diamonds are set in wonderful collet settings.

Category

Antique 19th Century French Victorian Pendant Necklaces

Materials

Diamond, Pearl, Gold, 18k Gold, Yellow Gold, Silver

Victorian Old Cut Diamond Ribbon Bow Brooch, 4.00 ct, Silver Upon 9KT Gold
Victorian Old Cut Diamond Ribbon Bow Brooch, 4.00 ct, Silver Upon 9KT Gold

Victorian Old Cut Diamond Ribbon Bow Brooch, 4.00 ct, Silver Upon 9KT Gold

Located in Braintree, GB

The stones are set in cut down silver collets over a 9KT gold back. Silver was used at the front because it is white and throws no colour into the diamond, and gold behind it because...

Category

Antique 1880s Victorian Brooches

Materials

9k Gold

French Rose Cut Diamond Ruby Heart Pendant Belle Epoque 18 Karat Gold Flower
French Rose Cut Diamond Ruby Heart Pendant Belle Epoque 18 Karat Gold Flower

French Rose Cut Diamond Ruby Heart Pendant Belle Epoque 18 Karat Gold Flower

Located in New York, NY

Throughout runs a ribbon bow of White Gold which is set with Rubies and Diamonds. The three round faceted Rubies are a very fine vivid red and are set in cut down collets.

Category

Antique 19th Century French Belle Époque Pendant Necklaces

Materials

Diamond, Ruby, Gold, 18k Gold, White Gold, Yellow Gold

Tiffany & Co., France Retro coral heart brooch
Tiffany & Co., France Retro coral heart brooch

Tiffany & Co., France Retro coral heart brooch

By Tiffany & Co.

Located in New York, NY

A Retro pavé coral and collet-set diamond brooch designed as a heart, in 18k gold.

Category

Vintage 1940s French Retro Brooches

Materials

Coral, Diamond, 18k Gold

Cartier black and white enamel pendant/watch necklace
Cartier black and white enamel pendant/watch necklace

Cartier black and white enamel pendant/watch necklace

By Cartier

Located in New York, NY

An Edwardian necklace comprised of a black and white striped enamel "Pékin" motif pendant watch with a central rose-cut diamond florette and surround, suspended by collet-set diamond...

Category

Vintage 1910s French Edwardian Pendant Necklaces

Materials

Diamond, Gold, 18k Gold, Platinum, Enamel

Contemporary Coral and Onyx in 18K White Gold Flower Bar Brooch Bezel Set
Contemporary Coral and Onyx in 18K White Gold Flower Bar Brooch Bezel Set

Contemporary Coral and Onyx in 18K White Gold Flower Bar Brooch Bezel Set

By SCALA GIOIELLI

Located in Marcianise, IT

Period: 21st Century / Contemporary Style: Modernist / Art Deco Geometric Revival Item Type: Bar Brooch / Pin Metal: 18k White Gold (750/1000) Total Brooch Weight: 8.90 grams Ge...

Category

1990s Italian Artisan Brooches

Materials

Coral, Diamond, 18k Gold, White Gold, Yellow Gold

A Diamond And Amethyst Briolette Drop Earrings
A Diamond And Amethyst Briolette Drop Earrings

A Diamond And Amethyst Briolette Drop Earrings

Located in London, GB

A diamond and amethyst briolette drop earrings, the amethyst briolette-cut with surmount of rose-cut diamond set in a foliate design suspended from a rose-cut diamond collet set in s...

Category

Antique 1890s British Victorian Drop Earrings

Materials

Amethyst, Yellow Gold, Silver

An Edwardian diamond and pearl-set tiara/necklace
An Edwardian diamond and pearl-set tiara/necklace

An Edwardian diamond and pearl-set tiara/necklace

Located in London, GB

An Edwardian diamond and pearl-set tiara/necklace, consisting of eleven knife-edge bars graduating from the centre, each embellished with old-cut diamonds in cut-down collet settings...

Category

Antique Early 1900s British Edwardian Vanity Items

Materials

Diamond, Pearl, Gold, Silver

An Edwardian diamond-set necklace
An Edwardian diamond-set necklace

An Edwardian diamond-set necklace

Located in London, GB

An Edwardian diamond-set necklace, comprising of seven graduating scrolling open-work panels, with flared foliate motifs, embellished with millegrain-set diamonds, suspending a gradu...

Category

20th Century British Edwardian Chain Necklaces

Materials

Diamond, Platinum

A Single Stone Diamond Ring
A Single Stone Diamond Ring

A Single Stone Diamond Ring

Located in London, GB

A single stone diamond ring, the round brilliant-cut diamond weighing 0.68 carats of G colour and VS1 clarity, accompanied by De Beers Grading Report, set in a six-claw platinum coll...

Category

Mid-20th Century English Modern Engagement Rings

Materials

Diamond, 18k Gold, White Gold, Yellow Gold

A Large Aquamarine And Diamond Ring
A Large Aquamarine And Diamond Ring

A Large Aquamarine And Diamond Ring

Located in London, GB

A large aquamarine and diamond ring, the rectangular radiant-cut aquamarine weighing 43 carats, four claw-set to a brilliant-cut diamond-encrusted collet and shoulders, with D-secti...

Category

21st Century and Contemporary British Cocktail Rings

Materials

Aquamarine, Diamond, Platinum

A pair of Early Victorian diamond chandelier earrings
A pair of Early Victorian diamond chandelier earrings

A pair of Early Victorian diamond chandelier earrings

Located in London, GB

A pair of Victorian diamond drop earrings, each chandelier design earring set with old-mine cut diamonds in cut down collets and embellished with diamond-set scroll decorations, term...

Category

Antique 19th Century British Victorian Drop Earrings

Materials

Diamond, 18k Gold, Silver

Edwardian Diamond Set Cross
Edwardian Diamond Set Cross

Edwardian Diamond Set Cross

Located in London, GB

An Edwardian diamond cross pendant, the openwork Latin cross millegrain-set throughout with graduated old European-cut diamonds, seven diamonds individually framed in square collets ...

Category

Antique Early 19th Century British Edwardian Pendant Necklaces

Materials

Diamond, Platinum

Certified 2.12 Carat Solitaire Diamond Ring
Certified 2.12 Carat Solitaire Diamond Ring

Certified 2.12 Carat Solitaire Diamond Ring

Located in London, GB

A single stone diamond ring, the round brilliant-cut diamond weighing 2.15 carats accompanied by AnchorCert report stating to be of F colour and VVS2 clarity, 6 claw-set to an open ...

Category

Early 2000s Unknown Modern Solitaire Rings

Materials

Diamond, Platinum

Faberge Sapphire Diamond Yellow Gold Brooch
Faberge Sapphire Diamond Yellow Gold Brooch

Faberge Sapphire Diamond Yellow Gold Brooch

By Fabergé

Located in London, GB

A Fabergé sapphire and diamond brooch, the yellow gold scroll set with a rose-cut diamond and sapphire, collet set, estimated approximate diamond weight 0.20 carats, estimated approx...

Category

Antique Late 19th Century Russian Victorian Brooches

Materials

Diamond, Blue Sapphire, Yellow Gold

Victorian Opal and Diamond Flower Brooch
Victorian Opal and Diamond Flower Brooch

Victorian Opal and Diamond Flower Brooch

Located in London, GB

An Victorian opal and diamond flower brooch, with a central old brilliant-cut diamond in a silver collet and five petals each set at centre with an oval opal, surrounded by grain-set...

Category

Antique Mid-19th Century British High Victorian Brooches

Materials

Diamond, Opal, Yellow Gold

Sapphire and Diamond Line Bracelet by Yard
Sapphire and Diamond Line Bracelet by Yard

Sapphire and Diamond Line Bracelet by Yard

By Yard

Located in London, GB

A sapphire and diamond line bracelet by Yard, consisting of twenty four alternate set step-cut sapphires and twenty four old-European-cut diamonds both in groups of four, the sapphir...

Category

Vintage 1950s British Retro Link Bracelets

Materials

Diamond, Sapphire, Platinum

An antique natural pearl and diamond bracelet
An antique natural pearl and diamond bracelet

An antique natural pearl and diamond bracelet

Located in London, GB

A late 19th century French natural pearl and diamond bracelet, consisting of eight S-shaped links of foliate design each link set with fifteen old mine, old European and rose-cut dia...

Category

Antique Late 19th Century French Art Nouveau Link Bracelets

Materials

Diamond, Natural Pearl, 18k Gold, Yellow Gold, Silver

A Pair Of Pearl And Diamond Drop Earrings
A Pair Of Pearl And Diamond Drop Earrings

A Pair Of Pearl And Diamond Drop Earrings

Located in London, GB

A pair of pearl and diamond drop earrings, the top a cultured pearl suspending three old-cut diamonds set in square collets leading to pear shape cultured pearl drops, with screw fit...

Category

Vintage 1920s English Art Deco Drop Earrings

Materials

Diamond, Cultured Pearl, 9k Gold, Platinum

Victorian Natural Pearl and Diamond Cluster Necklace
Victorian Natural Pearl and Diamond Cluster Necklace

Victorian Natural Pearl and Diamond Cluster Necklace

Located in London, GB

A Victorian natural pearl and diamond necklace, the twelve graduated cluster motifs each centred with natural bouton pearls measuring from 5.6 mm to 9 mm, within a surround of old br...

Category

Antique 1880s Link Necklaces

Materials

Diamond, Pearl, Natural Pearl, 18k Gold, Yellow Gold, Silver

An important Victorian diamond cluster necklace
An important Victorian diamond cluster necklace

An important Victorian diamond cluster necklace

Located in London, GB

An important Victorian diamond cluster necklace, consisting of eighteen diamond-set clusters graduating is size from the centre, connected with gold trace chain embellished with eigh...

Category

Antique 1880s British Victorian Pendant Necklaces

Materials

15k Gold, 9k Gold

A Georgian Bague au Firmament blue enamel and diamond ring
A Georgian Bague au Firmament blue enamel and diamond ring

A Georgian Bague au Firmament blue enamel and diamond ring

Located in London, GB

A Georgian Bague au Firmament blue enamel and diamond ring, the oval blue enamel set to the centre with an oval rose-cut diamond, surrounded by six round rose-cut diamonds all diamo...

Category

Antique Early 19th Century English Georgian Bridal Rings

Materials

18k Gold, Silver

Renaissance Revival Emerald, Ruby and Pearl Pendant
Renaissance Revival Emerald, Ruby and Pearl Pendant

Renaissance Revival Emerald, Ruby and Pearl Pendant

Located in London, GB

A Renaissance revival emerald, ruby, pearl and enamelled gold pendant, the rectangular-cut emerald estimated to weigh 1.5 carats rub-over set to the centre, flanked with one diamond-...

Category

Antique 1880s British Renaissance Revival Pendant Necklaces

Materials

Emerald, Pearl, Ruby, Diamond, Natural Pearl, 18k Gold, Gold, Yellow Gol...

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Diamond Collet For Sale on 1stDibs

Find the exact diamond collet you’re shopping for in the variety available on 1stDibs. Frequently made of Gold, 18k Gold and Silver, this item was constructed with great care. You can easily find a 8 antique edition and 5 modern creations to choose from as well. Finding the perfect diamond collet may mean sifting through those created during different time periods — you can find an early version that dates to the 19th Century and a newer variation that were made as recently as the 21st Century. For this particular piece, are consistently popular carat weights. There have been many well-made iterations of the classic diamond collet over the years, but those made by Fred Leighton, La Triomphe and Leo de Vroomen are often thought to be among the most beautiful. Today, if you’re looking for a round cut version of this piece and are unable to find the perfect match, our selection also includes old european cut alternatives. There aren’t many items for men if you’re seeking a diamond collet, as most of the options available are for women and unisex.

How Much is a Diamond Collet?

The price for a diamond collet starts at $2,083 and tops out at $44,000 with these necklaces, on average, selling for $5,041.

The Legacy of Diamond in Jewelry Design

Antique diamond rings, diamond tiaras and dazzling vintage diamond earrings are on the wish lists of every lover of fine jewelry. And diamonds and diamond jewelry are primarily associated with storybook engagements and red-carpet grand entrances — indeed, this ultra-cherished gemstone has a dramatic history on its hands.

From “A Diamond Is Forever” to “Diamonds Are a Girl’s Best Friend,” pop culture has ingrained in our minds that diamonds are the most desired, the most lasting and the most valuable gemstone. But what makes the diamond so special? Each stone — whether it’s rubies, sapphires or another stone — is unique and important in its own right. April babies might claim diamonds for themselves, but just about everyone wants this kind of sparkle in their lives!

There are several factors that set diamonds apart from other stones, and these points are important to our gem education.

Diamonds are minerals. They are made up of almost entirely of carbon (carbon comprises 99.95 percent; the remainder consists of various trace elements). Diamonds are the hardest gemstones, ranking number 10 on the Mohs Hardness Scale. Even its name, diamond, is rooted in the Greek adamas, or unconquerable. The only object that can scratch a diamond is another diamond. Diamonds are formed deep within the earth at very high temperatures (1,652–2,372 degrees Fahrenheit at depths between 90 and 120 miles beneath the earth’s surface) and are carried up by volcanic activity. Diamonds are quite rare, according to the Gemological Institute of America, and only 30 percent of all the diamonds mined in the world are gem quality.

In the 1950s, the Gemological Institute of America developed the 4Cs grading system to classify diamonds: clarity, color, cut and carat weight. Not all diamonds are created equal (there are diamonds, and then there are diamonds). The value of the diamond depends on the clarity (flawless diamonds are very rare but a diamond's value decreases if there are many blemishes or inclusions), color (the less color the higher the grade), cut (how the diamond’s facets catch the light, certain cuts of diamonds show off the stone better than others) and carat weight (the bigger, the better).

When you start shopping for a diamond engagement ring, always prioritize the cut, which plays the largest role in the diamond's beauty (taking the time to clean your diamond ring at least every six months or so plays a role in maintaining said beauty). And on 1stDibs, a range of buying guides can be found for those in the market for antique engagement ringsvintage engagement rings or Art Deco engagement rings

Shop antique and vintage diamond rings, diamond necklaces and other extraordinary diamond jewelry on 1stDibs.