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1.50 Carat Natural Trilliant Tanzanite Diamonds Ring 14 Karat
Located in New York, NY
Tanzanite Trilliant Ring 1.00ct. Natural Tanzanite Very clean clarity A+ superb transparency
Category

2010s American Solitaire Rings

Materials

Diamond, Tanzanite, 14k Gold, Yellow Gold

5.90 Carat Natural Trilliant Tanzanite Diamonds Ring 14 Karat
Located in New York, NY
Tanzanite Trilliant Ring 5.20ct. Natural Tanzanite Very clean clarity A+ superb transparency
Category

2010s American Solitaire Rings

Materials

Diamond, Tanzanite, 14k Gold, Rose Gold

Emerald Ring 9.8 Ct Diamond Bracelet Ca.9Ct Trilliant 3.03 Ct Ring
Located in Antwerp, BE
Emerald Ring 9.8 Ct & Diamond Bracelet Ca.9Ct & Trilliant 3.03 Ct Ring
Category

21st Century and Contemporary European Artisan Tennis Bracelets

Materials

Diamond, Emerald

14 Karat White Gold Trilliant Rubelite and Diamond Ring by Designer Viachi
Located in San Diego, CA
14kt White Gold Trilliant Rubelite and Diamond Ring Designer Viachi. New 14kt white gold 1.67ct
Category

2010s American Artist Fashion Rings

Materials

Diamond, Rubelite, 14k Gold, White Gold

Unique Platinum 4.40ct Trilliant Cut Channel Set Diamond Eternity Band Ring Sz 7
Located in Montclair, NJ
--Stone(s):-- (22) Natural Genuine Diamonds - Custom Trilliant Cut - Channel Set - F-H Color - VS1
Category

21st Century and Contemporary Wedding Rings

Materials

Diamond, Platinum

14k White Gold 6 Carat Trilliant Aquamarine Diamond Cut White Topaz Ring
Located in Eagan, MN
15.8 x 14.2 mm. It has 7 diamond cut white topaz stones flanking one side of the ring. It is stamped
Category

21st Century and Contemporary Unknown Art Deco Cocktail Rings

Materials

Aquamarine, Topaz, Diamond, 14k Gold, White Gold

Vivid Diamonds GIA Certified 5 Carat Unheated Ruby and Diamond Engagement Ring
By Vivid Diamonds
Located in Miami, FL
GIA Certified unheated cushion cut ruby weighing 5 carats, accompanied by two trilliant cut diamonds
Category

21st Century and Contemporary American Three-Stone Rings

Materials

Diamond, Ruby, Platinum, 18k Gold

$1 NO RESERVE! 4.98ct Tanzanite 0.30Ct Diamonds 14k White gold Necklace
By Diamonds Mine
Located in Ramat Gan, IL
Center Tanzanite Stone: Weight: 4.98 carat Color: Blue Shape: Trilliant Heated Side Stone
Category

2010s Art Deco Chain Necklaces

Materials

Diamond, Tanzanite, 14k Gold, White Gold

Van Cleef Arpels Diamond Ring
By Van Cleef Arpels
Located in New York, NY
cut diamond, GIA certified color: F, clarity: VS2, GIA# 1196582474. Accented with 2 trilliant cut
Category

1990s French Artist Engagement Rings

Materials

Diamond, Platinum

Tiffany Co. Diamond and Sapphire Ring
By Tiffany Co.
Located in Mayfair, London, London
blue sapphire weighing approximately 0.50ct. The sapphire is complemented by two trilliant cut diamonds
Category

21st Century and Contemporary Engagement Rings

Materials

Diamond, Sapphire, Platinum

5.23 Carat Sapphire Diamond Platinum Engagement Ring
Located in New York, NY
sapphire is flanked by two trilliant cut diamonds weighing approximately 0.80ct and round brilliant cut
Category

20th Century Engagement Rings

Materials

Blue Sapphire, Diamond, Platinum

Beauvince Trina Geometric Halo Diamond Ring in Gold
By Beauvince Jewelry
Located in New York, NY
Diamond Clarity: VVS Side Diamonds Shapes: Trilliant & Round Side Diamonds Weight: 1.31 ct Side Diamonds
Category

2010s Contemporary Fashion Rings

Materials

Diamond, White Diamond, Pink Diamond, Gold, 18k Gold, White Gold, Rose Gold

Natural Sapphire Diamond Gold Ring
Located in Stamford, CT
Totally natural GIA certified untreated oval 7.16ct Sapphire and Diamond ring. Deep Royal blue with
Category

20th Century Modern Bridal Rings

Materials

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

Tiffany Co. 1.78 Carat Sapphire Diamond Ring
By Tiffany Co.
Located in Bethesda, MD
A stunning emerald cut sapphire is contrasted with brilliant trilliant cut diamonds in this lovely
Category

21st Century and Contemporary American Three-Stone Rings

Materials

Blue Sapphire, Diamond, Platinum

Beauvince Yellow and White Diamond Halo Dangle Earrings in White Gold
By Beauvince Jewelry
Located in New York, NY
onlooker. Diamonds Shapes: Oval, Trilliant & Round Total Diamonds Weight: 3.47 ct Center Solitaires: 2
Category

2010s Contemporary Dangle Earrings

Materials

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

Natural 4 Carat Sapphire Diamond Platinum Engagement Ring
Located in New York, NY
. The center stone is flanked by sparkling trilliant cut diamonds that weigh approximately 1.00ct
Category

20th Century Engagement Rings

Materials

Diamond, Sapphire, Platinum

18 Karat Yellow Gold JB Star 3.36CTW Diamond Ring
By JB Star
Located in Webster, NY
JB Star diamond ring features 5 Marquise Cut Diamonds, 8 Trilliant Cut Diamonds and 36 Round
Category

21st Century and Contemporary Cocktail Rings

Materials

Diamond, 18k Gold

Emerald Diamond Gold Platinum Three-Stone Ring
Located in Los Angeles, CA
1.00 carat, between a pair of trilliant-cut diamonds totaling approximately 0.40 carat, approximately G
Category

1990s Contemporary Three-Stone Rings

Materials

White Diamond, Emerald, 18k Gold, Platinum

White Gold Necklace with Ruby, Diamond and Pearl
Located in Amsterdam, NL
ruby (1.05 carat) and a trilliant cut diamond (0.4 carat I, P) and a trilliant cut ruby (0.9 carat) on
Category

1990s Modern Chain Necklaces

Materials

Diamond, Pearl, Ruby, Gold, 18k Gold, White Gold

6.10 Carat Unheated Ceylon Sapphire Diamond Platinum Ring
Located in Miami, FL
Gemological Laboratory) Flanked by Two Trilliant Cut Diamonds Weighing Approximately 1.50cts G Color VS
Category

21st Century and Contemporary American Three-Stone Rings

Materials

Blue Sapphire, Diamond, Platinum

3.91 Carat Diamond White Gold Shooting Star Earrings
Located in Stamford, CT
baguettes, ending with two trilliant cut diamonds in 14k white gold. Bright sparkly diamonds in a clip and
Category

Mid-20th Century Dangle Earrings

Materials

Diamond, Gold, 14k Gold, White Gold

Oval Ruby, Diamond, Platinum and Yellow Gold Ring
Located in San Francisco, CA
The ring features one 1.55 carat oval-shaped ruby flanked by 2 trilliant-cut diamonds, with a total
Category

21st Century and Contemporary American Contemporary Three-Stone Rings

Materials

Diamond, Ruby, 18k Gold, Platinum

GIA Certified Untreated 1.37 Carat Emerald Diamond Engagement Ring
Located in New York, NY
that weighs 1.37ct. The center stone is accentuated by sparkling trilliant cut diamonds that weigh
Category

21st Century and Contemporary Engagement Rings

Materials

Diamond, Emerald, Platinum

Peter Suchy 3.04 Carat Triangle Diamond Solitaire Platinum Engagement Ring
By Peter Suchy
Located in Stamford, CT
Peter Suchy swirl custom design Platinum solitaire engagement ring. Trilliant cut 3.04ct extra
Category

2010s Engagement Rings

Materials

Diamond, Platinum

Emilio Jewelry Certified 4.10 Carat Vivid Green Emerald Diamond Ring
By Emilio!
Located in New York, NY
. Excellent crystal and transparency. Superb high quality emerald. Diamonds: Flanked by 2 Trilliant cut
Category

21st Century and Contemporary Three-Stone Rings

Materials

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

Peter Suchy 6.48 Carat Diamond Platinum Three-Stone Engagement Ring
By Peter Suchy
Located in Stamford, CT
two well matched with trilliant cut diamonds. The platinum setting was designed and crafted in the
Category

21st Century and Contemporary Engagement Rings

Materials

Diamond, Platinum

5.25 Carat Lively Colombian Emerald and Diamond Engagement Ring
Located in Bay Harbor Islands, FL
flanked by two trilliant cut diamonds with a total weight of 1.20 Cts. Metal: 18Kt White & Yellow Gold
Category

21st Century and Contemporary Engagement Rings

Materials

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

Peter Suchy 1.44 Carat Natural Sapphire Diamond Three-Stone Platinum Ring
By Peter Suchy
Located in Stamford, CT
platinum three-stone setting with Trilliant cut diamonds on each side. 1 rectangle step cut light orange
Category

Vintage 1980s Three-Stone Rings

Materials

Diamond, Sapphire, Platinum

Tiffany Co. GIA Certified .58 Carat Diamond Platinum Engagement Ring
By Tiffany Co.
Located in Stamford, CT
-stone setting with two trilliant cut side diamonds. Diamond removed and reset for GIA certification. 1
Category

Late 20th Century Engagement Rings

Materials

Diamond, Platinum

Alexander EGL Certified 2.85 Carat Emerald Cut Diamond Three-Stone Ring 18k
By Alexander Beverly Hills
Located in BEVERLY HILLS, CA
. Side stones, 2 trilliant cut diamonds, approximately G/H color grade, SI clarity grade. Four prong claw
Category

21st Century and Contemporary American Modern Engagement Rings

Materials

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

Peter Suchy GIA Certified 4.42 Carat Sapphire Diamond Platinum Engagement Ring
By Peter Suchy
Located in Stamford, CT
no enhancement center stone with two trilliant cut side diamonds in a platinum three stone setting
Category

21st Century and Contemporary Engagement Rings

Materials

Diamond, Sapphire, Yellow Sapphire, Platinum

Art Deco Tapering Diamond Bracelet with Fancy Cut Onyx and Calibre Emeralds
Located in New York, NY
diamond trilliant with alternating bullet-shaped cuts and calibré emeralds throughout, in platinum
Category

Vintage 1920s Art Deco Link Bracelets

Materials

Diamond, Emerald, Onyx, Platinum

Ladies Tourneau Gold Watch with Diamonds Sapphires and Mother of Pearl Dial
By Tourneau
Located in Palm Beach, FL
band. The bracelet begins with a trilliant cut diamond at the top and bottom of the case, with pave
Category

21st Century and Contemporary Swiss Wrist Watches

Materials

Diamond, Sapphire, 14k Gold

Natural No Heat Cylon Blue GIA Sapphire Diamond Platinum Three-Stone Ring
Located in Miami, FL
This classic three stone sapphire and diamond ring is hand crafted in solid platinum. Exposing the
Category

21st Century and Contemporary American Bridal Rings

Materials

Diamond, Sapphire, Platinum

14 Karat Gold Rustic Design Champagne Color Diamond Ring Center-0.37 Carat
Located in San Francisco, CA
color 0.37-carat trilliant-shaped natural diamond. Six round diamonds are scattered evenly on each side
Category

21st Century and Contemporary American Engagement Rings

Materials

Diamond, Yellow Gold

GIA Certified 2.62 Carat Blue Sapphire Diamond Yellow Gold Engagement Ring
Located in Stamford, CT
setting with two trilliant accent diamonds. GIA certified. 1 oval cut blue sapphire SI, approx
Category

21st Century and Contemporary Engagement Rings

Materials

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

Peter Suchy GIA 31.38 Carat Orange Topaz Diamond Platinum Gold Cocktail Ring
By Peter Suchy
Located in Stamford, CT
brownish orange center topaz with two trilliant cut side diamonds. Handmade in 18k gold and platinum three
Category

21st Century and Contemporary Cocktail Rings

Materials

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

Oscar Heyman 1.89 Carat Ruby and Diamond Set Gold Ring
Located in Litchfield, CT
luminous 1.89 carat ruby paired with two fine white trilliant-cut diamonds (H color and VS2 clarity
Category

Vintage 1970s American Cocktail Rings

Materials

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

Vintage Faraone Platinum South Sea Pearl Trillion Square Diamond Ring
By Faraone
Located in Winter Springs, FL
. Flanking the pearl are two large (.25ct each) trilliant cut diamonds as well as round and step cut square
Category

1990s Italian Contemporary Cocktail Rings

Materials

Diamond, South Sea Pearl, Platinum

Peter Suchy GIA Certified 7.90 Carat Sapphire Diamond 18 Karat Gold Ring
By Peter Suchy
Located in Stamford, CT
, Approximate 7.90 carats. Gia Certificate# 6193718410 2 trilliant cut F-G VS diamonds, Approximate .98 total
Category

21st Century and Contemporary Engagement Rings

Materials

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

Alexander EGL Certified 2.85 Carat Emerald Cut Diamond Three-Stone Ring 18k
By Alexander Beverly Hills
Located in BEVERLY HILLS, CA
. Side stones, 2 trilliant cut diamonds, approximately G/H color grade, SI clarity grade. Four prong claw
Category

21st Century and Contemporary American Modern Engagement Rings

Materials

Diamond, 18k Gold, White Gold, Gold

6.27 Carat Emerald Cut Tanzanite and Trillion Diamond Cocktail White Gold Ring
Located in Chicago, IL
set of 1.12 carats of perfectly matched trilliant cut diamonds elegantly set in beautiful 14K white
Category

2010s American Contemporary Cocktail Rings

Materials

White Diamond, Tanzanite, 14k Gold, White Gold

Vintage 6.5 Carat Blue Tanzanite Diamond Cocktail Ring White Gold Portugal 1990s
Located in Lisbon, PT
to the centre, flanked to each side by a similarly-set trilliant-cut diamond. Tanzanite accompanied
Category

1990s Portuguese Modern Engagement Rings

Materials

Diamond, Tanzanite, White Gold

Alexander All GIA Certified 3.00 Carat Radiant Cut Diamond Three-Stone Ring 18k
By Alexander Beverly Hills
Located in BEVERLY HILLS, CA
, VS2 clarity grade, GIA certified. Side stones, 2 trilliant cut diamond, both GIA certified. One stone
Category

21st Century and Contemporary American Modern Engagement Rings

Materials

Diamond, White Gold, 18k Gold

1.17 Carat Oval Blue Sapphire Loose Unset 3-Stone Engagement Ring Gemstone
By Sarosi By Timeless Gems
Located in Los Angeles, CA
with classic Ceylon cornflower blue color, it would look beautiful set with side diamonds as a
Category

21st Century and Contemporary Artisan Loose Gemstones

Materials

Sapphire, Blue Sapphire

Estate Yellow Gold Ruby and Diamond Earrings
Located in New York, NY
weighing 1.44 carats total weight that are highlighted by trilliant cut diamonds (G, VS) weighing an
Category

21st Century and Contemporary More Earrings

Materials

Diamond, Ruby, 18k Gold, Yellow Gold

Lilac Colored Sapphire and Diamond Ring
Located in London, GB
claw-set to the centre of two trilliant-cut diamonds, weighing a total of 0.50 carats, all set to a
Category

Early 2000s British Modern Cocktail Rings

Materials

Diamond, Sapphire, Purple Sapphire, Platinum

Van Cleef Arpels Yellow Gold 1.05 Carat Diamond Ring
By Van Cleef Arpels
Located in New York, NY
trilliant cut diamonds weighing an estimated .25 carats each. US size 5 1/4. Signed Van Cleef & Arpels with
Category

1990s Engagement Rings

Materials

Diamond, 18k Gold, Yellow Gold

18k Yellow Gold Pendant with Fancy Yellow Trilliant Diamonds and Sapphire
Located in DALLAS, TX
18k yellow gold pendant with .51ctw fancy yellow trilliant diamonds, .48ctw round brilliant cut
Category

21st Century and Contemporary American Contemporary Pendant Necklaces

Materials

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

9.17 Carat Unheated Ceylon Blue Sapphire and Trilliant Diamond Three-Stone Ring
Located in London, GB
9.17 Carat Unheated Ceylon Blue Sapphire And Trilliant Diamond Three Stone Ring. The oval vibrant
Category

Mid-20th Century Unknown Three-Stone Rings

Materials

Diamond, Blue Sapphire, 18k Gold, Yellow Gold

Aquamarine Cushion Cut With White Trilliant Diamond Shoulders Engagement Ring
Located in London, GB
Cushion Cut Aquamarine and Trilliant Diamond 18ct White Gold 3 Stone Ring The Cushion Cut
Category

2010s British Contemporary Engagement Rings

Materials

Aquamarine, Diamond, 18k Gold

Three Stone Ceylon Sapphire Trilliant Diamond Ring 6.46ct TR.36ct 18k WG
Located in New York, NY
weighing an impressive 6.46 carats. Accompanying the sapphire are two exquisite trilliant diamonds
Category

Antique Mid-19th Century American Contemporary Three-Stone Rings

Materials

Diamond, Sapphire, 18k Gold, White Gold

Lester Lampert VoiLLa Trilliant Diamond and Platinum Pendant
By Lester Lampert
Located in Chicago, IL
This elegant custom crafted Lester Lampert VoiLLa™ necklace is set in platinum with 13 trilliant
Category

2010s American Contemporary Pendant Necklaces

Materials

Diamond, Platinum

Trilliant Diamond Pendant 0.33 Carat G/H Color in Handmade 18 Carat White Gold
Located in London, London
A very pretty trilliant cut diamond pendant in an hand made 18ct white gold mount. The diamond is
Category

2010s British Contemporary Pendant Necklaces

Materials

White Diamond, 18k Gold

3.44 Carat G SI2 GIA Cert Radiant Cut Diamond Platinum Three Stone Ring
By Shreve, Crump Low
Located in Chestnut Hill, MA
flanked by 2 trilliant diamonds having a total weight of 1.16 carats 3 stone ring.
Category

21st Century and Contemporary Modern Three-Stone Rings

Materials

Diamond, White Diamond, Platinum

Tiffany Co 11.42 Colombian Emerald and Diamond Ring
By Tiffany Co.
Located in Chestnut Hill, MA
trilliant diamonds and the mounting is signed Tiffany & Co.
Category

20th Century Unknown Contemporary Three-Stone Rings

Materials

Diamond, Emerald, Platinum

Vintage Rolex Diamond Bracelet Watch
By Rolex
Located in New York, NY
trilliant diamonds weight approx 1.42ct. There are 308 round brilliant and single-cut diamonds estimated
Category

Early 20th Century Swiss Art Deco Wrist Watches

Materials

Diamond, Platinum

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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.