Skip to main content

Trilliant Diamond

to
80
375
264
239
127
146
526
140
123
79
60
1
145
408
3
5
2
6
5
4
21
18
379
173
4
106
76
72
52
38
to
29
25
21
12
11
140
99
30
6
3
2
2
1
1
556
447
70
Sort By
14kt Yellow Gold Pearl Diamond Pendant Enhancer, 12.3mm White Pearl, 1.78cttw
Located in San Diego, CA
, and 4 trilliant-cut diamonds. These diamonds are well cut, meaning they have excellent proportions and
Category

2010s Modern Necklace Enhancers

Materials

Diamond, Pearl, 14k Gold, Yellow Gold

5.13 Carat Zambian Emerald 1.14 Carat SI/H Diamond 18 Karat White Gold Earrings
By Spectrum Jewels
Located in Diera, Dubai
delicate petals to form a full-bloom flower. Between each emerald petal are trilliant-cut white diamonds
Category

21st Century and Contemporary American Art Deco Stud Earrings

Materials

Diamond, Emerald, 18k Gold, White Gold, Gold

4.50 Carat Cornflower Blue Sapphire Diamond Gold Three-Stone Engagement Ring
Located in Stamford, CT
, accented with tow trilliant cut side diamonds in a three-stone 18k yellow and white gold setting. AGL
Category

1990s Engagement Rings

Materials

Diamond, Sapphire, Blue Sapphire, 18k Gold, White Gold, Yellow Gold, Gold

GIA Certified 2.20 Carat Blue Sapphire Diamond Three-Stone Gold Engagement Ring
Located in Stamford, CT
heat sapphire center stone with 2 trilliant cut side diamonds in a 14k yellow setting. 1 oval soft
Category

21st Century and Contemporary Engagement Rings

Materials

Diamond, Sapphire, Blue Sapphire, Gold, 14k Gold, Yellow Gold

David Webb Platinum 18k Yellow Gold Diamond, Pearl, Dome Style Clip On Earring
By David Webb
Located in New York, NY
further decorated with alternating gold twists and round diamonds. Diamonds: Round Cut, Trilliant Cut
Category

20th Century American Modern Clip-on Earrings

Materials

Diamond, Pearl, Yellow Gold, Platinum

4.21tcw 14K Dark Green Emerald Cut Emerald Trillion Diamond Three Stone Ring
Located in Jupiter, FL
, set east to west in a 14k yellow gold bezel setting. The emerald is flanked by two trilliant cut
Category

2010s Zambian Three-Stone Rings

Materials

Diamond, Emerald, Gold, 14k Gold, Yellow Gold

GIA Certified 1.70 Carat Natural Princess Diamond F VS1 Non Gold Engagement Ring
Located in Los Angeles, CA
Diamond GIA Certified as an F in color and VS1 in clarity. The stone measures 6.52x6.42x4.89mm and has No
Category

Early 2000s American Modern Engagement Rings

Materials

Diamond, 14k Gold

Rachel Koen Marquise Illusion Diamond Engagement Ring 14K Gold 1.75 Cttw SZ 6.75
Located in New York, NY
. Center marquise illusion is combined from 2 trilliant cut diamonds in prong setting. Total diamond carat
Category

2010s American Modern Solitaire Rings

Materials

Diamond, 14k Gold, Yellow Gold

23.09ct Opal, Diamond and Sapphire set Pendant
Located in COTTESLOE, AU
total diamond weight, trilliant, fancy intense yellow/orange to fancy deep green yellow, fancy yellow 1
Category

21st Century and Contemporary Pendant Necklaces

Materials

18k Gold

14 Karat Yellow Gold Trilion Salt and Pepper Diamond Ring Center -0.74 Carat
Located in San Francisco, CA
This Petite Rustic design solitaire ring features a 0.74-carat Trilliant shape Salt & Pepper
Category

21st Century and Contemporary American Engagement Rings

Materials

Diamond, Yellow Gold

3.98ct Sapphire 0.80ct Diamond Engagement Ring
Located in New York, NY
sapphire that weighs approximately 3.98ct. The sapphire is accentuated by sparkling trilliant cut diamonds
Category

20th Century Engagement Rings

Materials

Sapphire, Platinum

2.05ct Colombian Emerald 0.75ct Diamond Ring
Located in New York, NY
emerald that weighs approximately 2.05ct. The center stone is accentuated by sparkling trilliant cut
Category

20th Century Cocktail Rings

Materials

Emerald, 18k Gold

3.1ct Rhombus Lozenge Brilliant Cut Diamond Solitaire Engagement Ring White Gold
Located in Lisbon, PT
smaller stones together, such as two trilliant-cut diamonds, to create the same final rhombus, lozenge or
Category

2010s Portuguese Contemporary Engagement Rings

Materials

Diamond, Gold, 18k Gold, White Gold

5.81 Ct Radiant Cut Platinum Fancy Yellow Three Stone Diamond Engagement Ring
Located in New York, NY
brilliance is accentuated by two trilliant-cut side diamonds, totaling 1.25 carats. The exquisite design
Category

21st Century and Contemporary American Modern Engagement Rings

Materials

Diamond, 18k Gold, Yellow Gold, Platinum

5.13 Carat Zambian Emerald 1.14 Carat SI/H Diamond 14 Karat White Gold Earrings
By Spectrum Jewels
Located in Diera, Dubai
delicate petals to form a full-bloom flower. Between each emerald petal are trilliant-cut white diamonds
Category

21st Century and Contemporary American Art Deco Stud Earrings

Materials

Diamond, Emerald, White Gold, Gold, 14k Gold

6.22 Carat Sapphire Diamond Engagement Ring
Located in New York, NY
that weighs 6.22ct. The sapphire is accentuated by sparkling trilliant and round cut diamonds that
Category

20th Century Engagement Rings

Materials

Sapphire, Platinum

GIA Certified 27.03 Carat Opal Ruby Diamond 14k Two Tone Gold Pendant Necklace
Located in Stamford, CT
halo of 11 round diamonds and 11 round rubies. Accented with 1 trilliant cut diamond in a 14k yellow
Category

Mid-20th Century Pendant Necklaces

Materials

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

Peter Suchy GIA 7.99 Carat Sapphire Diamond Platinum Three-Stone Engagement Ring
By Peter Suchy
Located in Stamford, CT
dark blue sapphire, approx. 7.99cts GIA Certificate # 5201734974 2 trilliant cut diamonds, F VS SI
Category

21st Century and Contemporary Engagement Rings

Materials

Diamond, Sapphire, Blue Sapphire, Platinum

2.25 Carat Ruby and Diamond Ring 18 Karat Yellow Gold
Located in Bay Harbor Islands, FL
trilliant cut diamonds with an estimated total weight of .45 carat set in 18 karat yellow gold. Ring Size:5
Category

21st Century and Contemporary American Modern Three-Stone Rings

Materials

Ruby, 18k Gold, Yellow Gold

GIA Certified 3.08 Carat Sapphire Diamond White Gold Three-Stone Engagement Ring
Located in Stamford, CT
trilliant cut diamonds I-J SI, approx. .40ct 14k white gold Stamped: 14k 3.6 grams Width at top: 8.3mm
Category

Late 20th Century Three-Stone Rings

Materials

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

5 carat Radiant Cut Diamond G/VS2 GIA 5.56 Carat Radiant Cut Three Stone Engagem
Located in New York, NY
diamond, flanked by (2) trilliant cut natural diamonds of 1.95cts in total weight. This is an engagement
Category

21st Century and Contemporary American Modern Engagement Rings

Materials

Diamond, 18k Gold, White Gold

7.17 Carat Sapphire 2.07 GIA Certified Diamond Engagement Ring
Located in New York, NY
weighs 7.17ct. The sapphire is flanked by sparkling GIA certified trilliant cut diamonds that weigh
Category

Late 20th Century Three-Stone Rings

Materials

Blue Sapphire, Platinum

Vintage Cartier 5.36 Carats Total Square Emerald Cut 3-Stone Engagement Ring
By Cartier
Located in Scottsdale, AZ
of the step-cut diamond is enhanced by its V-prong mounting, while the 2 flanking trilliant-cut
Category

Early 20th Century Unknown Art Deco Engagement Rings

Materials

Diamond, Platinum

AGL Certified 6 Carat Vivid Green Emerald Ring Exceptional Minor Oil
By Antinori Fine Jewels
Located in Chicago, IL
excellent stunner. Set with 2 colorless trilliant cut diamonds as side stones
Category

2010s Italian Modern Engagement Rings

Materials

Diamond, White Diamond, Emerald

4.95 Carat Square Green Emerald Ring In 18k Yellow Gold
Located in Chicago, IL
as the main stone with a weight of 4.95 carats. Additionally, there are two trilliant-cut diamonds
Category

2010s American Contemporary Fashion Rings

Materials

Diamond, Emerald, 14k Gold, Yellow Gold

Certified 5.77 carat octagonal Unheated Natural Sapphire Ring
By Claris-A
Located in Monte Carlo, MC
proportions. It is flanked by two trilliant-cut diamonds, forming the balanced composition characteristic of a
Category

2010s European Contemporary Three-Stone Rings

Materials

Sapphire, Diamond, 18k Gold, White Gold

GIA Certified .87 Carat Pink Sapphire Platinum Engagement Ring
Located in Stamford, CT
sapphire with two trilliant cut side diamonds, set in a three-stone platinum setting marked NK. We are not
Category

21st Century and Contemporary Engagement Rings

Materials

Diamond, Pink Sapphire, Sapphire, Platinum

GIA Report Certified Zambian Emerald Ring in Yellow Gold
Located in Coral Gables, FL
In Origin. Two Trilliant Cut Side Diamonds Total 1.40 Carats Of I1 Clarity & H Color. Hidden Hearts
Category

2010s Zambian Contemporary Three-Stone Rings

Materials

Diamond, Emerald, 18k Gold, Yellow Gold

8.70 Carat Fancy Yellow Intense Cushion Cut VVS2 GIA Three Stone Engagement Ring
Located in New York, NY
center diamond is certified by GIA, the world's utmost authority in gemology. Flanked by two trilliant
Category

21st Century and Contemporary American Modern Engagement Rings

Materials

Yellow Diamond, 18k Gold, Platinum

Alexey Denisov-Uralsky Signed Ural Emerald Pendant
Located in Miami, FL
Origin: Russia (Ural Region) ✔ Necklace: Gold, 13 White Diamonds (Trilliant-Cut, Marquis-Cut, Pear-Shape
Category

Early 20th Century Russian Art Nouveau Pendant Necklaces

Materials

White Diamond, Emerald, Platinum, Gold

18K Yellow Gold Hand Carved Ruby and Brown Sapphire Earrings
By Valentin Magro
Located in New York, NY
sapphire and ruby and 1.85 carats of 18 trilliant-shaped diamonds of FG color with VS clarity. Clip-backs
Category

2010s American Dangle Earrings

Materials

Ruby, Sapphire, Gold, 18k Gold, Yellow Gold

GRS Certified No Heat Oval-Shaped Pink Sapphire (Padparadsha - type) and Cts 1.3
Located in Hong Kong, HK
pink sapphire from Sri Lanka, accentuated by two dazzling trilliant-cut diamonds. Although the
Category

21st Century and Contemporary Hong Kong Contemporary Engagement Rings

Materials

Sapphire, Pink Sapphire

Emilio Jewelry Gubelin Certified 10.02 Carat Muzo Colombian Emerald Ring
By Emilio!
Located in New York, NY
cutting it shows up like a 10.00ct or larger Side diamonds: Trilliant 1.90ct tw According the emerald
Category

21st Century and Contemporary Three-Stone Rings

Materials

Emerald, Platinum

Art Deco AGL Certified 3.63 Carat Natural No Heat Burmese Ruby Engagement Ring
Located in New York, NY
sparkling trilliant and round cut diamonds that weigh approximately 0.50ct. The color of these diamonds is G
Category

20th Century Art Deco Engagement Rings

Materials

Ruby, Platinum

A Pair Of Art Deco Natural Pearl And Diamond Drop Earrings
Located in London, GB
-set cluster surround, from a run of brilliant-, trilliant- and baguette-cut diamonds in a geometric
Category

Early 20th Century British Art Deco Drop Earrings

Materials

Diamond, Natural Pearl, Platinum

Georgios Collections 18 Karat White Gold Diamond Tanzanite Trilliants Band Ring
By Georgios Collections Inc
Located in Astoria, NY
Diamonds total weight of 0.40ct. Please contact us for this design in Yellow or Rose Gold. This Ring is
Category

21st Century and Contemporary Greek Byzantine Band Rings

Materials

Diamond, White Diamond, Tanzanite, 18k Gold, Gold, White Gold

Oscar Heyman 1.72 Carat Sapphire Diamond Gent s Ring
By Oscar Heyman
Located in New York City, NY
trilliant diamonds (I-G/SI1-VS2, 0.23tcw). It is stamped with the makers mark, IRID PLAT, and serial number
Category

2010s American Contemporary Signet Rings

Materials

Diamond, Sapphire, Platinum

Bold Trilliant Diamond Bypass Ring
Located in New York, NY
Bold Diamond Trilliant bypass ring weighing a total of 2.77 cts flanked with numerous diamonds, in
Category

Late 20th Century Fashion Rings

Materials

Diamond

Exquisite Earrings in White Gold, Brown Tahiti Pearls and Trilliant Diamonds
Located in Bari, IT
pearls and ct 0,59 trilliant cut diamonds.
Category

21st Century and Contemporary Italian Modern Clip-on Earrings

Materials

Pearl, Diamond, 18k Gold, White Gold

Theo Fennell Pink Spinel Diamond Gold Bombe Ring
By Theo Fennell
Located in London, GB
Pink Spinel & the 0.51ct Trilliant Diamonds are set in 18ct Yellow Gold.
Category

Late 20th Century British Cocktail Rings

Materials

Diamond, Spinel, 18k Gold

New Mini Paw Print 14K White Gold and Diamond Stud Earrings For Multi Piercings
By Alison Nagasue AKN Design
Located in Rutherford, NJ
series with trilliant diamonds. The best feature of the new paw print earrings is their affordability
Category

2010s American Modern Stud Earrings

Materials

Diamond, 14k Gold, White Gold

Mini Paw Print Diamond and 14K White Gold Stud Earrings For Multi Piercings
By Alison Nagasue AKN Design
Located in Rutherford, NJ
worn in multiples. I selected a Trilliant Diamond to be the diamond shape and am pleasantly surprised
Category

2010s American Contemporary Stud Earrings

Materials

Diamond, 14k Gold, White Gold

1980s Trilliant Cut Blue Topaz Diamond Ring
Located in New York, NY
This exuberant 1980's wide band ring is made up of a pattern of brilliant trilliant cut Topazes and
Category

Vintage 1980s Unknown Contemporary Cocktail Rings

Materials

Diamond, Topaz, 14k Gold

2.06 Carat Trilliant Cut Tanzanite, Diamond Ring
By Antoinette Bracks
Located in Brisbane, QLD
This 2.06 carat trilliant cut Tanzanite and Diamond ring is set in 18 carat gold. The slightly
Category

21st Century and Contemporary Australian Contemporary Cocktail Rings

Materials

White Diamond, Tanzanite, 18k Gold

Donald Huber Trilliant Rock Crystal Diamond Ring
By Donald Huber
Located in New York, NY
This Donald Huber Trillant Rock Crystal Diamond Ring features 21 carats of Rock Crystal and .73
Category

21st Century and Contemporary American Contemporary Fashion Rings

Materials

Diamond, Rock Crystal, Yellow Gold, 18k Gold

Donald Huber Trilliant Rock Crystal Diamond Ring
By Donald Huber
Located in New York, NY
This Donald Huber Trillant Rock Crystal Diamond Ring features 20 carats of Rock Crystal and .73
Category

21st Century and Contemporary American Contemporary Fashion Rings

Materials

Diamond, Rock Crystal, 18k Gold, White Gold

Radiant Cut and Trilliant Cut Diamond Engagement Ring
Located in Dallas, TX
2 Trilliant Cut Diamonds 0.46 Carat Total Weight SI, I-J. Finger Size 5; 3.2 DWT or 4.98 Grams. The
Category

2010s Unknown Engagement Rings

Materials

Diamond, 14k Gold

Matsuzaki K18WG Trilliant Cut Aquamarine Diamond Designer Ring
By Noriko Matsuzaki
Located in Tokyo, JP
for details. Aquamarine : 1.07ct / Diamonds : 0.16ct Approximate Size of the center stone : L7mm W7mm
Category

2010s Japanese Artist Fashion Rings

Materials

Aquamarine, Diamond, 18k Gold

0.39 Carat HRD Certificate White Trilliant Cut Diamond
By Hana Or
Located in Antwerp, BE
other pieces of jewellery and watches on 1stdibs You may buy this Diamond Certified & Sealed by HRD or
Category

2010s Belgian Engagement Rings

Materials

White Diamond

1.00ctw Trilliant Cut Diamond Hoop Earrings in 18K White Gold
Located in Vienna, VA
1.00ctw Trilliant Cut Diamond Hoop Earrings in 18K Trilliant Cut Diamond Hoop Earrings 18K White
Category

21st Century and Contemporary Hoop Earrings

Materials

Diamond, White Gold, 18k Gold

8.48 Carat Oval Diamond Flanked, 0.77 Carat and 0.75 Carat Trilliant Cut Diamond
Located in Warrington, PA
Trilliant Cut Diamond. The shank is split with round brilliant cut diamonds as well. The total melee
Category

2010s American Modern Engagement Rings

Materials

Diamond, Yellow Diamond, 18k Gold, Platinum

18k White and Rose Gold 0.45ct Trilliant Australian Argyle Pink Diamond Ring
Located in SYDNEY, AU
exceptionally rare and unique, trilliant cut Argyle pink diamond which forms one of the leaf elements of the
Category

21st Century and Contemporary Australian More Rings

Materials

Diamond, Pink Diamond, Rose Gold, White Gold

Kian Design 0.69 Carat Trilliant Cut Pink Tourmaline and Diamond Earrings
By Kian Design
Located in South Perth, AU
five petite diamonds from which a stunning trillion cut tourmaline is suspended. Tourmaline: 2= 0.69
Category

2010s Australian Art Deco Dangle Earrings

Materials

Diamond, Tourmaline, 18k Gold, White Gold

Matsuzaki K18/PT900 Trilliant Cut Diamond Bagette Cut Pink Sapphire Ring
By Noriko Matsuzaki
Located in Tokyo, JP
for details. Pink Sapphires : 0.81ct / Diamonds : 1.21ct Size: #13 US6.5~7 EU53 Unique Piece / Brand
Category

21st Century and Contemporary Japanese Artist Cocktail Rings

Materials

Diamond, Pink Sapphire, 18k Gold, Platinum

2 Carat Trilliant Cut Ruby Diamond Engagement Ring Antique Victorian Ruby Ring
Located in Orlando, Florida
, unique vintage art deco ruby wedding ring, ruby diamond ring, victorian ruby ring, diamond engagement
Category

2010s Art Deco Engagement Rings

Materials

Diamond, Ruby, 18k Gold, Yellow Gold

20 Carat Trilliant Cut Amethyst and Diamond Ring by John Landrum Bryant
By H.H. Prince John Landrum Bryant
Located in New York, NY
Thirty round brilliant cut diamonds are DEF color and VS1 clarity and weigh 1.01 carats. I created
Category

21st Century and Contemporary American Contemporary Cocktail Rings

Materials

Amethyst, Diamond, Gold, 18k Gold

Tivon 18 Carat Rose Gold Trilliant Cut Pink Tourmaline and White Diamond Pendant
By TIVON FINE JEWELLERY
Located in Borehamwood, GB
1.43ct of glittering fine white diamonds & a perfect 12.59ct vivid-pink Tourmaline. One-off & Exclusive
Category

21st Century and Contemporary British Modern Pendant Necklaces

Materials

Diamond, Tourmaline, 18k Gold

  • 1
Get Updated with New Arrivals
Save "Trilliant Diamond", and we’ll notify you when there are new listings in this category.

Trilliant Diamond For Sale on 1stDibs

On 1stDibs, you can find the most appropriate trilliant diamond for your needs in our varied inventory. Frequently made of Gold, 14k Gold and White Gold, this item was constructed with great care. Find an antique version now, or shop for 13 vintage or 48 modern creation for a more contemporary example of these cherished accessories. Finding the perfect trilliant diamond may mean sifting through those created during different time periods — you can find an early version that dates to the 20th Century and a newer variation that were made as recently as the 21st Century. For this particular piece, 1 Carat and 1.5 Carat are consistently popular carat weights. Creating a trilliant diamond has been a part of the legacy of many jewelers, but those produced by Georgios Collections Inc, Lester Lampert and Tiffany Co. are consistently popular. A trillion cut version of this piece has appeal, but there are also oval cut and emerald cut versions for sale. When shopping for a trilliant diamond, you’ll find that there are less available pieces for unisex or men today than there are for women.

How Much is a Trilliant Diamond?

On average, a trilliant diamond at 1stDibs sells for $5,800, while they’re typically $680 on the low end and $68,500 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 ringsvintage engagement rings or Art Deco engagement rings

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