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Antique Edwardian 1910s 5.00 Carat Diamond Brooch with Onyx
Antique Edwardian 1910s 5.00 Carat Diamond Brooch with Onyx

Antique Edwardian 1910s 5.00 Carat Diamond Brooch with Onyx

Located in New York, NY

Finely crafted in platinum with a Modified Square cut Diamond at the center weighing approximately

Category

1910s Edwardian Antique Square Cut Diamond

Materials

Diamond, Onyx, Platinum

Antique Art Deco 1920s 8.50 Carat Diamond Openwork Brooch
Antique Art Deco 1920s 8.50 Carat Diamond Openwork Brooch

Antique Art Deco 1920s 8.50 Carat Diamond Openwork Brooch

Located in New York, NY

Finely crafted in platinum with Old European, Baguette, and Square cut Diamonds weighing

Category

1920s Art Deco Antique Square Cut Diamond

Materials

Diamond, Platinum

5.02 Carat Diamond Emerald Art Deco Platinum Pendant Necklace
5.02 Carat Diamond Emerald Art Deco Platinum Pendant Necklace

5.02 Carat Diamond Emerald Art Deco Platinum Pendant Necklace

Located in Stamford, CT

Art Deco 1915 handmade emerald and diamonds pendant necklace. Old Euro, Old Mine, Old square cut

Category

Early 20th Century Antique Square Cut Diamond

Materials

Diamond, Emerald, Platinum

Art Deco Diamond Bracelet
Art Deco Diamond Bracelet

Art Deco Diamond Bracelet

Located in Sausalito, CA

diamonds, consisting of: 270 single cut diamonds 9 square cut diamonds 18 baguette diamonds 3 old euro

Category

Early 20th Century Antique Square Cut Diamond

Art Deco Emerald & Diamond Tennis Bracelet
Art Deco Emerald & Diamond Tennis Bracelet

Art Deco Emerald & Diamond Tennis Bracelet

Located in New York, NY

Art Deco Emerald & Diamond Tennis Bracelet A bracelet consisting of a pattern of 42 square cut

Category

1920s Antique Square Cut Diamond

Materials

Diamond, Emerald, 18k Gold, White Gold

Two-Tone 18 Karat Gold Diamond Floral Necklace
Two-Tone 18 Karat Gold Diamond Floral Necklace

Two-Tone 18 Karat Gold Diamond Floral Necklace

Located in New York, NY

luminous diamond drops. The piece is set with 17 pear-shaped diamonds, 8 square-cut diamonds, and 458 round

Category

1920s Unknown Art Deco Antique Square Cut Diamond

Materials

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

Art Deco Platinum Diamond Eternity Band
Art Deco Platinum Diamond Eternity Band

Art Deco Platinum Diamond Eternity Band

Located in Narberth, PA

features 1.35ctw of baguette and square cut diamonds resting within a channel setting. The top and bottom

Category

1920s Art Deco Antique Square Cut Diamond

Materials

Diamond, Platinum

Vintage 1920s Diamond Set Silver Dial Platinum Cocktail Wristwatch
Vintage 1920s Diamond Set Silver Dial Platinum Cocktail Wristwatch

Vintage 1920s Diamond Set Silver Dial Platinum Cocktail Wristwatch

Located in Mayfair, London, London

platinum bezel set with approximately 16 round cut diamonds, approximately 8 square cut diamonds and 4

Category

1920s Unknown Antique Square Cut Diamond

Materials

Diamond, Platinum

Antique Edwardian Diamond Calibre Ruby Ring 14k Gold Platinum Sz 5.5 Engagement
Antique Edwardian Diamond Calibre Ruby Ring 14k Gold Platinum Sz 5.5 Engagement

Antique Edwardian Diamond Calibre Ruby Ring 14k Gold Platinum Sz 5.5 Engagement

Located in Torrance, CA

diamond is accented with a further estimated 0.15 carat old square cut diamonds. The total diamond weight

Category

Early 20th Century American Edwardian Antique Square Cut Diamond

Materials

Diamond, White Diamond, Ruby, Gold, 14k Gold, Yellow Gold, Platinum

Art Deco Platinum and Diamond Cocktail Ring
Art Deco Platinum and Diamond Cocktail Ring

Art Deco Platinum and Diamond Cocktail Ring

Located in Great Neck Plaza, NY

diamonds totaling approximately 1.60 carats. Complementing the central diamond are 30 square-cut diamonds

Category

1920s Art Deco Antique Square Cut Diamond

Materials

Diamond, Platinum

Cartier Art Deco Diamond and Platinum Bracelet, 22.40 Carats, Circa 1929
Cartier Art Deco Diamond and Platinum Bracelet, 22.40 Carats, Circa 1929

Cartier Art Deco Diamond and Platinum Bracelet, 22.40 Carats, Circa 1929

By Cartier

Located in London, GB

square-cut diamonds, flanked by two, entwined, D-shaped motifs, pavé set with round brilliant and old

Category

Early 20th Century French Art Deco Antique Square Cut Diamond

Materials

Diamond, Platinum

Cartier French Art Deco Diamond and Platinum Bracelet, 18.70 Carats, Circa 1929
Cartier French Art Deco Diamond and Platinum Bracelet, 18.70 Carats, Circa 1929

Cartier French Art Deco Diamond and Platinum Bracelet, 18.70 Carats, Circa 1929

By Cartier

Located in London, GB

raised, box set, square-cut diamonds and pentagonal spatula shaped connections, at either end of each

Category

1920s French Art Deco Antique Square Cut Diamond

Materials

Diamond, Platinum

Vintage Square Emerald and Single Cut Diamond Ring 14k Yellow Gold
Vintage Square Emerald and Single Cut Diamond Ring 14k Yellow Gold

Vintage Square Emerald and Single Cut Diamond Ring 14k Yellow Gold

Located in beverly hills, CA

yellow gold, this ring features a square cut emerald weighing approximately 0.80 carat, encircled by 14

Category

Mid-19th Century Antique Square Cut Diamond

Materials

Diamond, Emerald, 14k Gold, Yellow Gold

Vintage 1920s Platinum Stamped, Diamond & Ruby Buckle Style Cocktail Ring
Vintage 1920s Platinum Stamped, Diamond & Ruby Buckle Style Cocktail Ring

Vintage 1920s Platinum Stamped, Diamond & Ruby Buckle Style Cocktail Ring

Located in Brighton, GB

-style cocktail ring is adorned with natural Baguette-cut, Emerald cut, Old European cut and Square-cut

Category

Early 20th Century European Antique Square Cut Diamond

Materials

Diamond, Ruby, Platinum

E. M. Gattle & Co. 1920s Art Deco Diamond and Platinum Brooch
E. M. Gattle & Co. 1920s Art Deco Diamond and Platinum Brooch

E. M. Gattle & Co. 1920s Art Deco Diamond and Platinum Brooch

Located in New York, NY

European-cut diamonds with an approximate total weight of 4.50 carats, and 5 square-cut diamonds with an

Category

1920s American Art Deco Antique Square Cut Diamond

Materials

White Diamond, Diamond, Platinum

Ruby Diamond 18K Yellow Gold Angled Square Cluster Pendant
Ruby Diamond 18K Yellow Gold Angled Square Cluster Pendant

Ruby Diamond 18K Yellow Gold Angled Square Cluster Pendant

Located in London, GB

eight red square cut rubies surrounding a round brilliant cut diamond. Stamped 750 for 18 karat gold to

Category

1920s Unknown Antique Square Cut Diamond

Materials

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

Square Cut Emerald Halo Ring (Approx. 0.70-Carats) with Diamonds, Platinum
Square Cut Emerald Halo Ring (Approx. 0.70-Carats) with Diamonds, Platinum

Square Cut Emerald Halo Ring (Approx. 0.70-Carats) with Diamonds, Platinum

Located in New York, NY

that define the era. At its center sits a captivating approx 0.70-carat square-cut emerald, set

Category

1920s Unknown Art Deco Antique Square Cut Diamond

Materials

Diamond, Emerald, Platinum

Art Deco Colombian Square Cut Emerald Diamond Platinum Three-Stone Ring
Art Deco Colombian Square Cut Emerald Diamond Platinum Three-Stone Ring

Art Deco Colombian Square Cut Emerald Diamond Platinum Three-Stone Ring

Located in Greenwich, CT

2.78 carat square cut emerald ring attributed to the most ancient of mines. With an exceptional and

Category

1920s American Art Deco Antique Square Cut Diamond

Materials

Emerald, White Diamond, Platinum

Antique Victorian Agate, Carved Quartz, Diamond and Turquoise, 15ct Yellow Gold
Antique Victorian Agate, Carved Quartz, Diamond and Turquoise, 15ct Yellow Gold

Antique Victorian Agate, Carved Quartz, Diamond and Turquoise, 15ct Yellow Gold

Located in Jesmond, Newcastle Upon Tyne

collet set agate, enhanced to the centre with a collet set, 0.08ct square cut diamond. The pendant is

Category

19th Century Unknown Victorian Antique Square Cut Diamond

Materials

Agate, Diamond, Quartz, Turquoise, Yellow Gold

Antique 1.77ct Diamond, Enamel and Platinum Horse and Huntsman Brooch
Antique 1.77ct Diamond, Enamel and Platinum Horse and Huntsman Brooch

Antique 1.77ct Diamond, Enamel and Platinum Horse and Huntsman Brooch

Located in Jesmond, Newcastle Upon Tyne

European, eight and square cut diamonds, in a combination of collet and pavé settings. This horse brooch

Category

1910s Unknown Antique Square Cut Diamond

Materials

Diamond, Platinum, Enamel, White Gold

Antique Art Deco 1920s 1.20 Carat Asscher Cut Diamond Square Ring with Emeralds
Antique Art Deco 1920s 1.20 Carat Asscher Cut Diamond Square Ring with Emeralds

Antique Art Deco 1920s 1.20 Carat Asscher Cut Diamond Square Ring with Emeralds

Located in New York, NY

Finely crafted in platinum and 18k yellow gold with an Asscher cut Diamond, accenting Emeralds, and

Category

1920s Art Deco Antique Square Cut Diamond

Materials

Diamond, Emerald, 18k Gold, Platinum

Art Deco Diamond Square Cut Cabochon Blue-Green Opal 18K White Gold Pendant
Art Deco Diamond Square Cut Cabochon Blue-Green Opal 18K White Gold Pendant

Art Deco Diamond Square Cut Cabochon Blue-Green Opal 18K White Gold Pendant

Located in New York, NY

Fine Art Deco diamond, square cut cabochon blue-green opal and 18K white and yellow gold pendant

Category

Early 20th Century Art Deco Antique Square Cut Diamond

Materials

Diamond, Opal, 18k Gold, White Gold

C1690 18K Iberian Bow Form Ring with Table Cut Diamonds
C1690 18K Iberian Bow Form Ring with Table Cut Diamonds

C1690 18K Iberian Bow Form Ring with Table Cut Diamonds

Located in Baltimore, MD

Peninsula. This cluster ring is set with 7 table-cut deep diamonds totaling almost 1 carat in rubbed over

Category

1690s Spanish Baroque Antique Square Cut Diamond

Materials

Diamond, 18k Gold

French Antique Diamond Band Sz 4.75 Platinum Wedding Ring Eternity Table Cuts
French Antique Diamond Band Sz 4.75 Platinum Wedding Ring Eternity Table Cuts

French Antique Diamond Band Sz 4.75 Platinum Wedding Ring Eternity Table Cuts

Located in Torrance, CA

Elegant antique French diamond eternity ring (circa 1900s to 1910s). Antique table cut square

Category

Early 20th Century French Edwardian Antique Square Cut Diamond

Materials

Diamond, White Diamond, Platinum

0.70 Carat Square Brilliant Princess Cut  Gia Certified H Color I1 Clarity Diamo
0.70 Carat Square Brilliant Princess Cut  Gia Certified H Color I1 Clarity Diamo

0.70 Carat Square Brilliant Princess Cut Gia Certified H Color I1 Clarity Diamo

Located in New York, NY

ITEM DESCRIPTION ID #: NYC56562 Stone Shape: SQUARE MODIFIED BRILLIANT Diamond Weight: 0.70ct

Category

15th Century and Earlier Antique Square Cut Diamond

Materials

White Diamond

Art Deco 1.00 Carat Sapphire and 1.20 Carat Diamond Platinum Earrings Circa 1920
Art Deco 1.00 Carat Sapphire and 1.20 Carat Diamond Platinum Earrings Circa 1920

Art Deco 1.00 Carat Sapphire and 1.20 Carat Diamond Platinum Earrings Circa 1920

Located in Jesmond, Newcastle Upon Tyne

with a four-claw set square cut diamond, completing the design. These Art Deco earrings, for non

Category

1920s Unknown Art Deco Antique Square Cut Diamond

Materials

Diamond, Sapphire, White Gold, Platinum

Victorian 0.46 CTW Emerald & Rose Cut Diamond Halo Ring in 14K Yellow Gold
Victorian 0.46 CTW Emerald & Rose Cut Diamond Halo Ring in 14K Yellow Gold

Victorian 0.46 CTW Emerald & Rose Cut Diamond Halo Ring in 14K Yellow Gold

Located in Boston, MA

-cut diamonds of 0.06ctw, graded G color and SI1 clarity. Ring measures 9.0 mm in width and 5.0 mm in

Category

1870s Victorian Antique Square Cut Diamond

Materials

Diamond, Emerald, 14k Gold, Yellow Gold

Antique Art Deco 18.36 Carat Diamond and Platinum Bracelet Circa 1920
Antique Art Deco 18.36 Carat Diamond and Platinum Bracelet Circa 1920

Antique Art Deco 18.36 Carat Diamond and Platinum Bracelet Circa 1920

Located in Jesmond, Newcastle Upon Tyne

square cut diamonds. This feature central array is encompassed with eighteen pavé set Old European cut

Category

1920s Unknown Antique Square Cut Diamond

Materials

Diamond, Platinum

Antique Art Deco 2.18ct Diamond and 18ct White Gold Brooch Circa 1925
Antique Art Deco 2.18ct Diamond and 18ct White Gold Brooch Circa 1925

Antique Art Deco 2.18ct Diamond and 18ct White Gold Brooch Circa 1925

Located in Jesmond, Newcastle Upon Tyne

fancy brown diamond. The feature diamond is flanked with two collet set square cut diamonds and

Category

1920s Unknown Art Deco Antique Square Cut Diamond

Materials

Diamond, White Gold

Edwardian Platinum and Gold Bracelet with Rose Cut Diamonds and Ruby - VHK#1006
Edwardian Platinum and Gold Bracelet with Rose Cut Diamonds and Ruby - VHK#1006

Edwardian Platinum and Gold Bracelet with Rose Cut Diamonds and Ruby - VHK#1006

Located in Hicksville, NY

Edwardian Platinum and Gold Bracelet with Rose Cut Diamonds and Ruby - VHK#1006 Item Details: Year

Category

1910s Edwardian Antique Square Cut Diamond

Materials

Diamond, Ruby, Gold, 14k Gold, Yellow Gold, Platinum

Edwardian Old Cut Diamond Navette Ring
Edwardian Old Cut Diamond Navette Ring

Edwardian Old Cut Diamond Navette Ring

Located in London, GB

of the face lies and an antique square cushion cut diamond. This unique principal stone possesses a

Category

Early 1900s Edwardian Antique Square Cut Diamond

Materials

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

Antique Art Deco 14K White Gold Old European Cut Diamond Sapphire Link Bracelet
Antique Art Deco 14K White Gold Old European Cut Diamond Sapphire Link Bracelet

Antique Art Deco 14K White Gold Old European Cut Diamond Sapphire Link Bracelet

Located in Houston, TX

One ladies custom made filigreed 14K white gold, sapphire and diamond link bracelet. The metal was

Category

Early 20th Century Unknown Art Deco Antique Square Cut Diamond

Materials

Diamond, Sapphire, Gold, 14k Gold, White Gold

Vintage Cartier 5.36 Carats Total Square Emerald Cut 3-Stone Engagement Ring
Vintage Cartier 5.36 Carats Total Square Emerald Cut 3-Stone Engagement Ring

Vintage Cartier 5.36 Carats Total Square Emerald Cut 3-Stone Engagement Ring

By Cartier

Located in Scottsdale, AZ

square emerald cut diamond at its center, set in a crisp, high-polish platinum setting. The bold geometry

Category

Early 20th Century Unknown Art Deco Antique Square Cut Diamond

Materials

Diamond, Platinum

Antique 18ct Gold Art Deco Ruby & Diamond Square Ring
Antique 18ct Gold Art Deco Ruby & Diamond Square Ring

Antique 18ct Gold Art Deco Ruby & Diamond Square Ring

Located in Brighton, GB

Antique Art Deco Ring 18ct Gold Tested Circa 1920’s Fabulous, Art Deco ring. A beautiful square

Category

Early 20th Century English Art Deco Antique Square Cut Diamond

Materials

Diamond, Ruby, Gold, 18k Gold

0.74 Carat Square Brilliant Gia Certified K Color I2 Clarity Diamond
0.74 Carat Square Brilliant Gia Certified K Color I2 Clarity Diamond

0.74 Carat Square Brilliant Gia Certified K Color I2 Clarity Diamond

Located in New York, NY

ITEM DESCRIPTION ID #: NYC56895 Stone Shape: SQUARE MODIFIED BRILLIANT Diamond Weight: 0.74ct

Category

15th Century and Earlier Antique Square Cut Diamond

Materials

White Diamond

Square shaped Dore Bronze Mounted Cut Crystal Jewelry Box, by Baccarat
Square shaped Dore Bronze Mounted Cut Crystal Jewelry Box, by Baccarat

Square shaped Dore Bronze Mounted Cut Crystal Jewelry Box, by Baccarat

By Cristalleries De Baccarat

Located in New York, NY

crystal panels hand cut in a grid pattern, each panel decorated with repeating diamond and square cuts

Category

1830s French Empire Antique Square Cut Diamond

Materials

Crystal, Bronze

Vintage Art Deco Diamond Ruby Square Ring Sz 7.25 Platinum Jewelry 1920s
Vintage Art Deco Diamond Ruby Square Ring Sz 7.25 Platinum Jewelry 1920s

Vintage Art Deco Diamond Ruby Square Ring Sz 7.25 Platinum Jewelry 1920s

Located in Torrance, CA

color and VS2-SI2 clarity). Two cabochon cut half moon rubies (lab) accent the diamonds. The square

Category

Early 20th Century American Art Deco Antique Square Cut Diamond

Materials

Diamond, White Diamond, Ruby, Platinum

Art Deco Geometric Platinum French Cut & Old Cut Diamond Bracelet
Art Deco Geometric Platinum French Cut & Old Cut Diamond Bracelet

Art Deco Geometric Platinum French Cut & Old Cut Diamond Bracelet

Located in Los Angeles, CA

estimated to be G-H and clarities estimated VS1-VS2. Also featuring: 4 larger Square French Cut diamonds

Category

1920s American Art Deco Antique Square Cut Diamond

Materials

Diamond, Platinum

Antique Men's 0.08 Carat Round Diamond  Squared Ring 18k Gold
Antique Men's 0.08 Carat Round Diamond  Squared Ring 18k Gold

Antique Men's 0.08 Carat Round Diamond Squared Ring 18k Gold

Located in Miami, FL

Antique Men's 0.08 Carat G/VS Single Cut Round Diamond Squared Ring 18k Gold. Very elegant ring

Category

1920s Antique Square Cut Diamond

Materials

Diamond, 18k Gold

1.30 Ct. Art Deco Cushion-Cut Diamond Ring in Platinum
1.30 Ct. Art Deco Cushion-Cut Diamond Ring in Platinum

1.30 Ct. Art Deco Cushion-Cut Diamond Ring in Platinum

Located in Houston, TX

square step-cut diamonds in a finely-detailed openwork mounting enhanced by bead-set diamonds and

Category

1920s Unknown Art Deco Antique Square Cut Diamond

Materials

Diamond, Platinum

GIA Certified Antique 1.61 Carat Diamond and Platinum Ring Circa 1925
GIA Certified Antique 1.61 Carat Diamond and Platinum Ring Circa 1925

GIA Certified Antique 1.61 Carat Diamond and Platinum Ring Circa 1925

Located in Jesmond, Newcastle Upon Tyne

set antique 1.36ct square step cut diamond. The elevated and pierced decorated shoulders are each

Category

1920s Antique Square Cut Diamond

Materials

Diamond, Platinum

Art Deco Geometric Carré Cut Diamond Platinum Band
Art Deco Geometric Carré Cut Diamond Platinum Band

Art Deco Geometric Carré Cut Diamond Platinum Band

Located in Santa Barbara, CA

Carré cut diamonds; square shapes that are skillfully and precisely matched to a tea. The attention to

Category

1920s Art Deco Antique Square Cut Diamond

Materials

Diamond, Platinum

Cartier Art Deco Sapphire and Diamond Arrow Jabot Pin
Cartier Art Deco Sapphire and Diamond Arrow Jabot Pin

Cartier Art Deco Sapphire and Diamond Arrow Jabot Pin

By Cartier

Located in London, GB

flights and tips being set with calibre-cut sapphires in 18ct yellow gold and rose cut diamonds in a fine

Category

1920s Antique Square Cut Diamond

Materials

Diamond, Sapphire, 18k Gold

Art Deco Colombian Emerald and Diamond Three-Stone Ring
Art Deco Colombian Emerald and Diamond Three-Stone Ring

Art Deco Colombian Emerald and Diamond Three-Stone Ring

Located in London, GB

bright white transitional cut diamonds. The emerald is a chunky square shape, providing a striking

Category

1920s Antique Square Cut Diamond

Materials

Diamond, Emerald, Platinum

Art Deco Old European Cut Diamond & Ruby Navette Ring
Art Deco Old European Cut Diamond & Ruby Navette Ring

Art Deco Old European Cut Diamond & Ruby Navette Ring

Located in New York, NY

& square cut rubies. Center Stone Weight: approximately 1.25 carats Two Side Diamond Weights

Category

1920s Unknown Art Deco Antique Square Cut Diamond

Materials

Diamond, Ruby, 14k Gold, White Gold, Yellow Gold

Antique 4.48 Carat Sapphire 4.35 Carat Diamond Platinum Line Bracelet Circa 1920
Antique 4.48 Carat Sapphire 4.35 Carat Diamond Platinum Line Bracelet Circa 1920

Antique 4.48 Carat Sapphire 4.35 Carat Diamond Platinum Line Bracelet Circa 1920

Located in Jesmond, Newcastle Upon Tyne

square frame. The centre of each link is further ornamented with two pavé set eight cut diamonds, in a

Category

1920s Unknown Antique Square Cut Diamond

Materials

Diamond, Sapphire, Platinum

Art Deco Onyx and Diamond Bracelet
Art Deco Onyx and Diamond Bracelet

Art Deco Onyx and Diamond Bracelet

Located in London, GB

Deco period. The bracelet features a striking combination of square-cut black onyx and round faceted

Category

1920s Art Deco Antique Square Cut Diamond

Materials

Diamond, Onyx, 18k Gold, White Gold

Antique Emerald 1.20 Carat Diamond Platinum Ring
Antique Emerald 1.20 Carat Diamond Platinum Ring

Antique Emerald 1.20 Carat Diamond Platinum Ring

Located in Jesmond, Newcastle Upon Tyne

ornamented with a feature collet set 0.57ct square cut emerald. The feature emerald is flanked to the upper

Category

1920s Unknown Antique Square Cut Diamond

Materials

Diamond, Emerald, Platinum

Art Deco Ruby Pearl and Diamond Necklace
Art Deco Ruby Pearl and Diamond Necklace

Art Deco Ruby Pearl and Diamond Necklace

Located in London, GB

. Surrounding these rubies are several shimmering rose cut diamonds above in a neat geometric frame before a

Category

1920s Art Deco Antique Square Cut Diamond

Materials

Diamond, Pearl, Ruby, Platinum

Rare Post-Medieval Diamond and Enamel Ring, circa 1550-1650
Rare Post-Medieval Diamond and Enamel Ring, circa 1550-1650

Rare Post-Medieval Diamond and Enamel Ring, circa 1550-1650

Located in London, GB

Rare Post-Medieval Diamond and Enamel Ring. Set with a square table cut diamond in a closed back

Category

16th Century Renaissance Antique Square Cut Diamond

Materials

Diamond, Enamel

Art Deco Diamond And Emerald Ring c.1920
Art Deco Diamond And Emerald Ring c.1920

Art Deco Diamond And Emerald Ring c.1920

Located in Firenze, IT

0,50ct square step cut diamond and two baguette brillant cut, and eight calibré cut emeralds on the sides

Category

1920s Italian Art Deco Antique Square Cut Diamond

Materials

Diamond, Emerald, Platinum

Antique Art Deco Platinum Old Emerald Cut Diamond Engagement Ring - GIA
Antique Art Deco Platinum Old Emerald Cut Diamond Engagement Ring - GIA

Antique Art Deco Platinum Old Emerald Cut Diamond Engagement Ring - GIA

Located in Great Neck, NY

square emerald cut diamond that comes with a GIA report. The diamond is set in a beautiful Art Deco

Category

1920s Art Deco Antique Square Cut Diamond

Materials

Diamond, Platinum

Art Deco 0.75ct Diamond Brooch, c.1920s
Art Deco 0.75ct Diamond Brooch, c.1920s

Art Deco 0.75ct Diamond Brooch, c.1920s

Located in London, GB

three carre cut diamonds, each weighing 0.25 carat each. Spreading out from the centre three, additional

Category

1920s Unknown Art Deco Antique Square Cut Diamond

Materials

Diamond, Platinum

Antique Old European Cut Diamond Ring, circa Early 1900s
Antique Old European Cut Diamond Ring, circa Early 1900s

Antique Old European Cut Diamond Ring, circa Early 1900s

Located in San Francisco, CA

Diamond is flanked on either side by a rich blue square cut sapphire, and 18 round diamonds are set

Category

Early 20th Century Unknown Art Deco Antique Square Cut Diamond

Materials

Diamond, Platinum

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Antique Square Cut Diamond For Sale on 1stDibs

On 1stDibs, you can find the most appropriate antique square cut diamond for your needs in our varied inventory. Each design created in this style — which was crafted with great care and often made from Gold, 18k Gold and Platinum — can elevate any look. Making the right choice when shopping for an antique square cut diamond may mean carefully reviewing examples of this item dating from different eras — you can find an early iteration of this piece from the 18th Century and a newer version made as recently as the 20th Century, both of which have proven very popular over the years. There have been many well-made iterations of the classic antique square cut diamond over the years, but those made by NIBIRU Collection, Asprey London and Cartier are often thought to be among the most beautiful. Today, if you’re looking for a square cut version of this piece and are unable to find the perfect match, our selection also includes emerald cut and old european cut alternatives. Most of our antique square cut diamond for sale are for women, but there are 47 pieces available to browse for men.

How Much is a Antique Square Cut Diamond?

The price for an antique square cut diamond starts at $220 and tops out at $92,582 with these rings, on average, selling for $2,950.

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.  

Questions About Antique Square Cut Diamond
  • 1stDibs ExpertNovember 13, 2024
    What a square-cut diamond is called depends on how the jeweler arranged its facets. A princess-cut diamond has a square shape and a brilliant cut that maximizes its sparkle. Another square-shaped cut is the Asscher, which is stepped to show off a diamond's color and clarity. Find a large selection of diamond jewelry on 1stDibs.