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Sort By
Colombian Emerald Diamond Gold Three Stone Ring
Located in Beverly Hills, CA
Gemological Lab certified and flanked on each side by Triangle Cut Diamonds. The stones are set in a 14KT
Category
Late 20th Century American Contemporary Three-Stone Rings
Materials
Diamond, Emerald, 14k Gold, Yellow Gold
6.62 Carat Sapphire and Diamond Ring
Located in San Francisco, CA
sapphire is embraced simply by a triangle cut diamond on either side. The ring is finished with a hand
Category
21st Century and Contemporary Cocktail Rings
Materials
Diamond, Sapphire, Platinum
4.50 Carat Ceylon Intense Blue Sapphire Cocktail Ring Set with Triangle Diamond
By Héritage Jewelry
Located in Istanbul, TR
The Triangle Diamonds weight is 0.79 Carats ( 2 Triangle-cut-diamonds).
The Royal Blue Sapphire is
Category
21st Century and Contemporary French Contemporary Cocktail Rings
Materials
Diamond, Sapphire, Blue Sapphire, White Diamond, Gold, White Gold, 18k Gold
Mociun Watermelon Tourmaline and Diamond Earrings
Located in Brooklyn, NY
setting have a total gem weight 1.58ct
2 antique triangle cut diamonds in a v-prong setting have a total
Category
2010s American Contemporary Stud Earrings
Materials
Tourmaline, 14k Gold
Art Deco .91 Carat Diamond Ring
Located in Los Angeles, CA
-VS1 with an EGL certificate. On each side of the center diamond are an old triangle cut diamond and
Category
Unknown Engagement Rings
GRS 6.81 Carat Oval Cornflower Natural Blue No Heated Sri Lanka Sapphire Ring
Located in Istanbul, TR
cut diamond at either shoulder
The pair of diamonds weighing O,70 carats mounted in white gold
The
Category
21st Century and Contemporary Sri Lankan Bridal Rings
Materials
Diamond, Blue Sapphire, 18k Gold
Chanel Multi Shaped Diamond Gold Band Ring
By Chanel
Located in Vail, CO
approximately 0.23 total carats and one triangle cut diamond weighing approximately 0.10 total carats. Ring size
Category
21st Century and Contemporary French Band Rings
Materials
Diamond, White Diamond, 18k Gold, Yellow Gold
Art Deco Platinum and Diamond Brooch/Clip/ Necklace
Located in Dallas, TX
marquise, and one triangle cut diamonds with a combined diamond weight of 15.00 cts. of grade VS, G-H
Category
Vintage 1920s Unknown Art Deco Pendant Necklaces
Materials
Diamond, Platinum
11.53 Carat Natural Ceylon Sapphire and Diamond Ring
Located in Los Angeles, CA
( formerly Ceylon). On each side are two approximately one carat old triangle cut diamonds that are
Category
20th Century Unknown Edwardian Cocktail Rings
Materials
Diamond, Sapphire, Platinum
2.91 Carat Hexagon Diamond Platinum Engagement Ring
Located in San Francisco, CA
Triangle Cut Diamonds
Carat Weight: 0.50 carat
Color: I
Clarity: VS1
Total Diamond
Category
Vintage 1930s Art Deco Engagement Rings
Materials
Diamond, Platinum
7.16 Carat Ceylon Intense Blue Sapphire Cocktail Ring Set with Round Diamond
By Héritage Jewelry
Located in Istanbul, TR
Triangle-cut-diamonds).
The Halo of diamonds count 38 Round Diamonds and weight 0.32 Carat.
The total
Category
21st Century and Contemporary French Contemporary Cocktail Rings
Materials
Diamond, Sapphire, Blue Sapphire, White Diamond, 18k Gold, Gold, White Gold
Triangle Rose Cut Diamond Necklace
By Single Stone
Located in Los Angeles, CA
0.59ct WX/SI1 EGL certified Triangle Rose cut diamond in a bezel set 18K Yellow Gold necklace
Category
21st Century and Contemporary Pendant Necklaces
Materials
Diamond, 18k Gold, Yellow Gold
19.95 Carat Cushion Intense Blue Ceylon Sapphire Ring 18 Karat White Gold
By Héritage Jewelry
Located in Istanbul, TR
Triangle-cut-diamonds).
The halo of diamonds count 34 Round Diamonds.
The total Diamond weight is 2.11
Category
21st Century and Contemporary French Contemporary Cocktail Rings
Materials
Diamond, Sapphire, Blue Sapphire, White Diamond, 18k Gold, Gold, White Gold
Art Deco Square Step Cut Diamond Triangle Cut Emerald Ring
Located in Theydon Bois, Essex
featuring 10 eight cut diamonds in the shoulders.
Cut – Square step cut diamond and a modified triangle
Category
Early 20th Century Art Deco Cocktail Rings
Materials
Diamond, Emerald, 18k Gold
0.50ct Brilliant Cut Diamond Triangle Necklace in 18ct Yellow Gold
Located in Yorkshire, West Yorkshire
Brilliant Cut Diamonds set in a triangle structure with Yellow Gold claws. Each Diamond is clear and bright
Category
21st Century and Contemporary British Modern Pendant Necklaces
Materials
Diamond, 18k Gold, Yellow Gold
Triangle-Shaped Diamond Post Earrings
Located in DALLAS, TX
Introducing our exquisite Triangle-Shaped Diamond Post Earrings – a dazzling addition to your
Category
20th Century Stud Earrings
Materials
Diamond, 22k Gold, Yellow Gold
Ico
the Bird Fine Jewelry Rainbow Moonstone Diamond Triangle 22k gold Bracelet
By Ico
the Bird Fine Jewelry
Located in Los Angeles, CA
diamonds decorating the 22k gold clasp.
This bracelet was designed as a symbol of strength. Each triangle
Category
2010s Artisan Link Bracelets
Materials
Diamond, Moonstone, Rainbow Moonstone, 22k Gold
1.00 Carat Rose Cut Diamond Gold Earrings
Located in Beverly Hills, CA
shape, flat top Rose Cut Diamonds weighing approx.1.00 carat. A beautiful Art Nouveau patina enhance
Category
21st Century and Contemporary American Artisan Dangle Earrings
Materials
Diamond, 18k Gold
2.02 Carat Emerald-Cut Diamond Ring
Located in San Francisco, CA
with a shimmering step-cut triangle, diamond-set, corner-to-corner with the emerald cut creating a
Category
20th Century Engagement Rings
Materials
Platinum
Engagement Ring with .64Ct. Diamond and Sapphires
Located in Los Angeles, CA
, engraving on the gallery and shank, and triangle cut sapphires surrounding a center diamond. That center
Category
Unknown Engagement Rings
Materials
Diamond
Mario Buccellati Diamond and Gold Ring
By Mario Buccellati
Located in New York, NY
and each triangle is set with full cut diamonds.Size 6
Category
Vintage 1950s Italian Band Rings
Materials
Diamond, 18k Gold
Art Deco Sapphire and Diamond Ring
Located in San Francisco, CA
violetish-blue sapphire highlighted with sparkling round, triangle and baguette-cut diamonds in a handmade
Category
Early 20th Century Art Deco Fashion Rings
Materials
Diamond, Sapphire, Platinum
Edwardian Style Collar Set 2.12ct Peridot and Diamond Ring in 18ct Gold
Located in Yorkshire, West Yorkshire
triangle of brilliant cut Diamonds, set in a geometric Edwardian style adding sparkle to an already
Category
21st Century and Contemporary British Edwardian Engagement Rings
Materials
Diamond, Peridot, Gold, 18k Gold, White Gold, Yellow Gold
1.80 Carat Emerald and Diamond Ring
Located in San Francisco, CA
triangle diamonds. The emerald is set in 18 karat yellow gold above a yellow gold ring shank; the diamonds
Category
20th Century Cocktail Rings
Materials
Diamond, Emerald, 18k Gold, Platinum
Carl Bucherer 18 Karat Gold Brown Diamonds Chalcedony Pendant Necklace $3315
By Carl F. Bucherer
Located in Beverly Hills, CA
cut diamonds.
1 triangle shape chalcedony.
Perfect worn day or night.
Comes in the original box
Category
2010s Pendant Necklaces
Materials
Chalcedony, Brown Diamond, Rose Gold
2.75 Carat Blue Enhanced Color Treated Solitaire Diamond White Gold Ring
Located in Sherman Oaks, CA
set triangle brilliant cut diamonds, measuring 4.00 x 4.00 x 2.48 mm approximate total weight of 2
Category
21st Century and Contemporary Engagement Rings
Materials
Diamond, 18k Gold
18K Tanzanite
6.48 Cts
and Diamond
35=1.00 Cts
Ring
By Michael Engelhardt
Located in West Palm Beach, FL
life in the mounting. The triangle cut stone has a diamond accent motif around it's points and is set
Category
2010s Tanzanian Art Nouveau Cocktail Rings
Materials
Diamond, Tanzanite, 18k Gold
Certified 4.21 Carat Unheated Tanzanian Ruby Diamond 18 Karat White Gold Ring
By Les Pierres de Julie
Located in Paris, FR
).
The ruby is enlighted by two troidia cut (triangle) diamonds, for a weight of 0.65 carats.
18 carat
Category
2010s French Contemporary Engagement Rings
Materials
Diamond, Ruby, 18k Gold, White Gold
Edwardian Style Collar Set 2.12 Carat Peridot and Diamond Ring in 18ct Gold
Located in Yorkshire, West Yorkshire
triangle of brilliant cut Diamonds, set in a geometric Edwardian style adding sparkle to an already
Category
21st Century and Contemporary British Edwardian Engagement Rings
Materials
Diamond, Peridot, Gold, 18k Gold, White Gold, Yellow Gold
Art Deco 26 Carat Star Sapphire Ring
Located in San Francisco, CA
four prongs and is dressed up on both sides by a triangle step-cut diamond crisscrossed with diamonds
Category
Early 20th Century Art Deco Cocktail Rings
Materials
Diamond, Sapphire, Platinum
Certified 3.57 Three-Stone Ceylon Sapphire Rings Triangle Diamond
By Héritage Jewelry
Located in Istanbul, TR
Triangle-cut-diamonds).
The Sapphire is certified as a Ceylon Sapphire (Sri Lanka Sapphire), with no
Category
21st Century and Contemporary Sri Lankan Three-Stone Rings
Materials
Diamond, Blue Sapphire, 18k Gold
Vintage Chrysoberyl Cat
s-Eye and Diamond 14 Karat White Gold Ring - Size 11 3/4
Located in St. Louis Park, MN
side of the center stone, there is a triangle cut Diamond. Each of these diamonds measure 5 x 5mm each
Category
Vintage 1940s Fashion Rings
Materials
Chrysoberyl, Diamond, White Gold
Gattle Art Deco Colombian Emerald Diamond Bracelet
Located in Lakewood, NJ
set between two triangle cut diamonds, approx. 1.00 carat each. A marvelous find!
No. TMWJ-8667
Category
Vintage 1920s American Art Deco Tennis Bracelets
Materials
Diamond, Emerald, Platinum
Diamond Drop Triangle Earrings
By Isabel Alexander
Located in Reston, VA
enamel triangles. The stud attaches to the black enamel triangle and sparkling diamonds alternate with
Category
21st Century and Contemporary North American Art Deco Dangle Earrings
Materials
Diamond, 14k Gold
Antique Early Victorian Amethyst and Old Cut Diamond Ring in 14 Carat Gold
Located in Yorkshire, West Yorkshire
-Cut Diamond centre and intricate detail showing the age of this ring, but with a new replacement band
Category
Antique Mid-19th Century British Victorian Solitaire Rings
Materials
Amethyst, Diamond, 14k Gold, Yellow Gold
1.15 Carat Cushion Cut Natural Garnet Ring
Located in Vadgam, GJ
triangle-cut swarovski diamond. Renowned for its deep red hue and impressive brilliance, the garnet exudes
Category
21st Century and Contemporary Indian Wedding Rings
Materials
Garnet, Sterling Silver
Green Tourmaline Ring, 18k White Gold Pink Spinels and Diamonds Ring
Located in Bangkok, TH
triangle cut, total carat weight 2.05.
• Diamonds, 76 pc round cut diamonds – total carat weight 0.61
Category
2010s Thai Modern Cocktail Rings
Materials
Diamond, Spinel, Tourmaline, 18k Gold, White Gold
18 Karat Vintage Diamond Emerald Cross Pendant White
Located in Boca Raton, FL
Triangle are (12) Round Brilliant Cut Diamonds, approximately 1.00ctw, G-H in Color, VS in Clarity that are
Category
Vintage 1970s Pendant Necklaces
Materials
Diamond, Emerald, 18k Gold
Art Deco Vintage Inspired 1.46 Carat Triangle Step Cut Diamond Platinum Ring
By Trumpet
Horn
Located in Beverly Hills, CA
Cut diamond, graded I color and VS1 clarity. The uniquely shaped stone has the appearance of a much
Category
2010s American Art Deco Engagement Rings
Materials
Diamond, Platinum
- 1
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Triangle Cut Diamond For Sale on 1stDibs
You are likely to find exactly the triangle cut diamond you’re looking for on 1stDibs, as there is a broad range for sale. Frequently made of gold, 18k gold and white gold, this item was constructed with great care. You can easily find a 189 antique edition and 238 modern creations to choose from as well. Making the right choice when shopping for a triangle 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 19th Century and a newer version made as recently as the 21st Century, both of which have proven very popular over the years. As it relates to this specific piece, our collection includes designs that are universally popular, but .5 carat and 1 carat carat weights, specifically, are sought with frequency. There have been many well-made iterations of the classic triangle cut diamond over the years, but those made by Falcinelli Italy, Pasquale Bruni and Gems Paradise are often thought to be among the most beautiful. A brilliant cut version of this piece has appeal, but there are also round cut and trillion cut versions for sale. There aren’t many items for men if you’re seeking a triangle cut diamond, as most of the options available are for women and unisex.
How Much is a Triangle Cut Diamond?
On average, a triangle cut diamond at 1stDibs sells for $4,837, while they’re typically $1 on the low end and $1,134,536 for the highest priced versions of this item.
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 rings, vintage engagement rings or Art Deco engagement rings.
Shop antique and vintage diamond rings, diamond necklaces and other extraordinary diamond jewelry on 1stDibs.
Questions About Triangle Cut Diamond
- 1stDibs ExpertFebruary 22, 2021A triangle shaped diamond is called a Triangular brilliant or a Trilliant or Trillion. They are cut so that there are three equally straight sides and are often cut from shallow double crystals.
- 1stDibs ExpertNovember 8, 2023Yes, the princess cut is a good cut for a diamond. For one thing, princess-cut diamonds are similar to the shape of a raw diamond. As a result, jewelers waste less of the stone, often leading to cost-effective pricing for princess-cut diamond jewelry. The princess cut is also visually appealing due to its symmetrical shape. As a brilliant cut, it shows off the sparkle of a diamond. On 1stDibs, shop a collection of princess-cut diamond jewelry.
- What is a portrait cut diamond?1 Answer1stDibs ExpertSeptember 28, 2021A portrait cut diamond is an Indian originated diamond cut, also known as the lasque. In this design, the diamond is artistically cut in the form of a slab of numerous shapes. They have an intricately polished upper lower surface, which add to the overall aesthetic of the ring. Shop vintage unique portrait cut diamond jewelry on 1stDibs today.
- What is a princess cut diamond?1 Answer1stDibs ExpertFebruary 22, 2021A princess cut, which has the technical name “square modified brilliant,"" is a popular diamond engagement ring cut. The characteristics of a princess cut are a straight sided rectangular outline with a brilliant style facet arrangement. Princess cuts tend to produce more sparkle than other traditional square diamonds.
- What is an Ashoka-cut diamond?1 Answer1stDibs ExpertApril 5, 2022An Ashoka-cut diamond is a rectangular-shaped cushion cut with rounded corners. It is so unique, it was even given its own patent. This extremely rare, exclusive diamond is only available from William Goldberg, but you can also shop the look from some of the world’s top jewelry sellers on 1stDibs.
- What is a step cut diamond?1 Answer1stDibs ExpertFebruary 22, 2021A step cut diamond is usually square or rectangular and gets its name from the step-like faceting. The facets are arranged in parallel lines on all four sides and tend to be larger facets than brilliant-cut diamonds.
- What is a moval cut diamond?1 Answer1stDibs ExpertApril 5, 2022A moval cut diamond is a gemstone cut in a particular way to display in jewelry. The term describes a cross between oval and marquise cuts with a round shape and subtle points at the top and bottom. You'll find a collection of moval cut diamond gemstone jewelry on 1stDibs.
- 1stDibs ExpertFebruary 22, 2021There are a handful of different diamond cuts, each differing in cost, carat, and size. The most popular diamond cuts include round brilliant-cut, princess-cut, marquise-cut, cushion-cut, emerald-cut, radiant-cut, pear-shaped, oval, and asscher-cut.
- 1stDibs ExpertNovember 2, 2023The hardest diamond cuts for a jeweler to make are those that have many facets arranged in a complex shape. One of the most popular challenging cuts is the heart-shaped diamond, which has 56 to 58 facets. Other elaborate cuts include the Asprey, the Eighty-Eight, the Royal Asscher, the Jubilee and the Ashoka. Shop a wide range of diamond jewelry on 1stDibs.
- 1stDibs ExpertNovember 2, 2023The cuts in a diamond are called facets. In addition, the term cut can refer to a diamond's overall shape and design. Each cut of diamond has a specific number of facets arranged uniquely. For example, 58 facets make up a round diamond, while an Asscher-cut diamond has 57. Find a diverse assortment of diamond jewelry on 1stDibs.
- What is a trillion cut diamond?1 Answer
Roman Malakov DiamondsMarch 22, 2021A trillion cut diamond is a triangular shaped brilliant cut diamond. It normally has 50 facets. - 1stDibs ExpertNovember 1, 2023There is no single prettiest cut of diamond, as the visual appeal of jewelry is a matter of personal preference. If you love the sparkle of diamonds, brilliant cuts like the round, cushion, radiant, princess, pear, oval and marquise may appeal to you. Step-cut styles, which include Asscher, emerald and baguette, allow the beautiful color of a gemstone to take center stage. Find a large collection of diamond jewelry on 1stDibs.
- 1stDibs ExpertDecember 4, 2023What the most prestigious diamond cut is varies based on individual opinions. Some people may say the round brilliant cut because of its popularity and the fact that it is one of the most expensive in terms of price per carat. Others may point to the cuts that are the most difficult to make, such as the oval, marquise or pear. The Gemological Institute of America (GIA) ratings can also make a specific diamond's cut prestigious. According to the GIA grading system, Excellent cuts are the finest quality. Find a large selection of diamond jewelry on 1stDibs.
- 1stDibs ExpertOctober 5, 2021A transitional cut diamond bridges the chunky old Euro diamonds of the old world and the flashy stones of today. With the advent of new technology in the 1920s, the old European diamond began to “transition: to the early modern cut or early American cut, the transitional cut diamond. In the 1930s and 1940s, transitional cut diamonds were most often used in jewelry. On 1stDibs, find a broad range of antique and vintage diamond jewelry.
- What is a tycoon cut diamond?1 Answer1stDibs ExpertOctober 12, 2021In simple terms, a tycoon cut is a gemstone cut that has nine crown facets and 20 step-cut pavilion facets. Find a collection of vintage tycoon cut diamond jewelry on 1stDibs today.
- 1stDibs ExpertNovember 8, 2023Generally, the most expensive cut of diamond is the brilliant round cut. This cut creates the most waste during the shaping process, and the excess material gets factored into the price. Keep in mind that other factors like clarity, color and carat weight also impact the price. On 1stDibs, find a wide range of diamond jewelry.
- What is a star-cut diamond?1 Answer1stDibs ExpertJanuary 23, 2024A star-cut diamond is a diamond with a certain shape and facet arrangement. Specifically, the style features 86 facets and is a brilliant cut that shows off the sparkle of a diamond. In terms of shape, the cut produces a gemstone that resembles a five-pointed star. On 1stDibs, explore a wide variety of diamond jewelry.
- What is a cushion cut diamond?1 Answer1stDibs ExpertMarch 22, 2022A cushion cut diamond is one that has a square shape with rounded corners. It differs from the similarly shaped emerald cut in that it has a brilliant cut that maximizes sparkle rather than a stepped cut that shows off color and clarity. You'll find a variety of cushion cut diamond jewelry on 1stDibs.
- What is a Victorian-cut diamond?1 Answer1stDibs ExpertNovember 2, 2021A Victorian-cut diamond features a top crown that is distinctly multifaceted — it has a small table and step-cut bottom pavilion that comprises 73 facets. It appears quite large when set. Relatedly, rose-cut diamonds are uncommon in modern jewelry and are often associated with antique styles like Victorian or Georgian.
- What are diamond cuts on chains?1 Answer1stDibs ExpertNovember 6, 2023Diamond cuts on chains are small grooves or notches on the surface of the metal. The addition of this detailing gives metal chains a luminous, almost sparkling effect. The term is not to be confused with diamond cut, which refers to the design guide that a jeweler uses for shaping gemstones. A diamond's cut relates to how well the stone's facets interact with light. Explore a variety of chain necklaces on 1stDibs.
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