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1 Ct Internally Flawless Diamond

GIA Certified 1 Carat Heart Shape 18K Gold Ring Internally FLAWLESS F COLOR
By Antinori Fine Jewels
Located in Rome, IT
of love with our enchanting GIA certified 1 ct Heart-Shaped Diamond Ring in lustrous 18K White Gold
Category

2010s Italian Modern Engagement Rings

Materials

Emerald, White Diamond, Diamond, 18k Gold

18kt White Gold Ring With 2.5 ct Princess cut & 1 ct Brilliant cut Diamond
Located in Antwerp, BE
18kt White Gold Ring With 2.5 ct Princess cut & 1 ct Brilliant cut Diamonds Diamonds: 16 Princess
Category

21st Century and Contemporary Belgian Artisan Signet Rings

Materials

Diamond, 18k Gold, White Gold

Rare GIA Certified Type 2A I Flawless 6.00 Carat Natural Pink Oval Diamond Ring
Located in Tustin, CA
is a very noteworthy and very collectible natural pink diamond that is Internally Flawless and is
Category

21st Century and Contemporary American Artisan Solitaire Rings

Materials

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

Beauvince Yellow Cushion Diamond Dangle Halo Earrings 3.67 ct Diamonds in Gold
By Beauvince Jewelry
Located in New York, NY
-T Diamond Clarity: IF & VVS2 (Internally Flawless & Very Very Slightly Included 2) EGLUSA
Category

2010s Contemporary Dangle Earrings

Materials

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

GIA Certified 1 Carat Emerald Cut Diamond 18k White Gold Ring
By Antinori Fine Jewels
Located in Rome, IT
mesmerizing D color and Internally Flawless clarity, this diamond exudes unparalleled brilliance. Its
Category

2010s Unknown Contemporary Engagement Rings

Materials

Diamond, Emerald, 18k Gold, White Gold

New African IF 5.50 ct Deep Blue Sapphire RGold Plated Sterling Pendant
Located in Eagan, MN
" stands for "Internally Flawless". The stone is an oval cut and measures 12 x 10 mm. It is surrounded
Category

2010s Unknown Art Deco Pendant Necklaces

Materials

Sapphire, Blue Sapphire, Gold Plate, Rose Gold, Silver, Sterling Silver

Emilio Jewelry Gia Certified 30.00 Carat Emerald Cut Diamond Necklace
By Emilio!
Located in New York, NY
available. Approximate t.w.=30.00ct Approximate size of each diamond: .30ct or 1/3 ct Length: 17inches
Category

21st Century and Contemporary Choker Necklaces

Materials

Diamond, White Diamond, 18k Gold

Elegant 0.7ct Pear Diamond Necklace in Radiant 18K White Gold
Located in רמת גן, IL
(internally flawless), radiates exceptional brilliance and fire with its unique teardrop shape. Dazzling 0.18
Category

2010s Israeli Pendant Necklaces

Materials

Diamond, 18k Gold, White Gold

Exceptional 2 Carat Cushion Diamond Ring in 18K White Gold
Located in רמת גן, IL
carat cushion modified brilliant diamond, boasting exceptional fire and scintillation. This internally
Category

2010s Israeli Engagement Rings

Materials

Diamond, 18k Gold, White Gold

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Roman Malakov 3.23 Carats Oval Cut Diamond Three Stone Engagement Ring
By Roman Malakov
Located in New York, NY
A classic and vibrant three-stone engagement ring showcasing a 3.23 carats oval cut diamond certified by GIA as I Color, I2 in Clarity and set in a classic four prong basket setting....
Category

21st Century and Contemporary American Contemporary Engagement Rings

Materials

Diamond, Platinum

Cartier 1895 1.03 Carats Radiant Cut Diamond Solitaire Engagement Ring
By Cartier
Located in New York, NY
A radiant cut engagement ring made, signed and numbered by Cartier. Part of the 1895 Collection of Cartier. Set with a 1.03 carats radiant cut diamond center stone that GIA certified...
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21st Century and Contemporary American Modern Engagement Rings

Materials

Diamond, Platinum

Hermes Birkin 35 Craie Rose Gold Chalk Off White Togo U Stamp, 2022 RARE
By Hermès
Located in New York, NY
Hermes Birkin 35cm Craie Chalk Off White Togo Rose Gold Hardware U Stamp, 2022 Incredibly rare combination-- do not miss! Craie with Rose Gold is simply sublime- an ultra rare find i...
Category

21st Century and Contemporary French Top Handle Bags

Tiffany & Co Platinum 3.56 Carat Emerald Cut Diamond GIA Engagement Ring
Located in New York, NY
Elevate your love story with this exquisite Tiffany & Co. 3.56ct Emerald Cut G color VS1 clarity GIA Engagement Ring. It's not just a symbol of love; it's a testament to sophisticati...
Category

21st Century and Contemporary American Modern Three-Stone Rings

Materials

Diamond, Platinum

Chanel 1998 Red Vintage CC Travel Vanity Train Case Shoulder Crossbody Bag
By Chanel
Located in Miami, FL
Chanel Red Vintage 90's CC Travel Vanity Train Case Shoulder Crossbody Bag circa 1998 red leather gold-tone hardware padlock detail front zip fastening single flat top handle detach...
Category

1990s Italian Top Handle Bags

Antique GIA 3.63 Carat Old European Cut Diamond 14k Antique Gold Solitaire Ring
Located in Beverly Hills, CA
One Antique GIA 3.63 Carat Old European Cut Diamond 14k Antique Gold Solitaire Ring. Featuring one GIA old European cut diamond of 3.63 carats, accompanied by GIA #6234113959 stating...
Category

Antique Early 1900s Solitaire Rings

Materials

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

Historical Rolex Cosmograph Daytona Big Red 6263 steel 1979
By Rolex
Located in Bilbao, ES
First launched in 1963 and created specifically for the world of automotive racing, the Rolex Daytona collection is arguably one of the most popular and universally respected lines o...
Category

21st Century and Contemporary Swiss Modern Wrist Watches

Materials

Steel

Belle Époque Diamond Tiara
Located in London, GB
A Belle Époque diamond tiara, to the centre three diamond-set clusters with diamond-set foliate decorations and one large diamond-set cluster on each side, all within a waved frame o...
Category

Early 20th Century French Belle Époque More Jewelry

Materials

Diamond, Platinum

Rolex Zenith Daytona Inverted 6 16518
By Rolex
Located in London, GB
A Zenith Cosmograph Daytona in yellow gold by Rolex, featuring a white dial with diamond set hour markers. The dial further features a 12 hour counter with an inverted 6 and a small ...
Category

20th Century Swiss Wrist Watches

Materials

Gold, 18k Gold, Yellow Gold

Vivienne Westwood black satin evening corset, c. 1990s
By Vivienne Westwood
Located in London, GB
▪ Vivienne Westwood black satin evening corset ▪ Boning designed to cinch the waist and push breasts up ▪ Back zip fastening ▪ FR 38 - UK 10 - US 6 (runs small) ▪ c. 1994-1998
Category

1990s Italian Corsets

GIA Certified 2.74 Carats Radiant Cut Fancy Yellow Diamond Stud Earrings
By Roman Malakov
Located in New York, NY
A vibrant stud earrings showcasing a color-rich GIA Certified radiant cut fancy yellow diamonds weighing 2.74 carats total, VS2-Si1 in Clarity. Set in a timeless four prong setting a...
Category

21st Century and Contemporary American Modern Stud Earrings

Materials

Yellow Diamond, Diamond, 18k Gold, Yellow Gold

Blue Spinel Ring 4.01 Carat Emerald Cut
By Merkaba
Located in Beverly Hills, CA
Rare and exquisite 4.01 carat deep blue Spinel emerald cut, nestled in a remarkable three row micro-set diamond ring in platinum. Ring size 6. Resizing is complementary upon request....
Category

21st Century and Contemporary American Modern Cocktail Rings

Materials

Multi-gemstone, White Diamond, Diamond, Spinel, Platinum

Beauvince Solitaire Diamond Necklace and Earring Suite in White Gold
By Beauvince Jewelry
Located in New York, NY
The Beauvince Sansa Diamond Necklace & Earring Suite is delicate and sensual yet bold and enigmatic. The gorgeous double strand necklace features 1.02 Carat Radiant Cut Diamond at it...
Category

2010s Contemporary Multi-Strand Necklaces

Materials

Diamond, White Diamond, 18k Gold, White Gold

Rolex Daytona ice out, White Gold 116509
By Rolex
Located in New York, NY
This unbeatable offer features a pre-owned Rolex Daytona watch with an iced-out white gold case, bracelet is white gold. You'll be pleased to know that it comes with its box and pap...
Category

21st Century and Contemporary Wrist Watches

Materials

Diamond, 18k Gold, White Gold

Rolex Daytona Platinum Diamond Pave Dial Men’s Watch 116576TBR
By Rolex
Located in New York, NY
Pre-owned. Comes with the original box and papers. Very rare piece, Impossible to find one in the market with this condition. * Free Shipping within the USA * Five-year warranty co...
Category

2010s Swiss Wrist Watches

Materials

Platinum

Rolex Daytona White Gold Pave Diamond Dial & Sapphire Set 11659912SA
By Rolex
Located in London, GB
A stunning diamond and sapphire set Daytona crafted in white gold by Rolex. Features a pave diamond dial with roman applied numerals, 3 sub dials featuring a 30 minute and 12 hour re...
Category

21st Century and Contemporary Swiss Wrist Watches

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Diamond, Sapphire, 18k Gold, White Gold

Recent Sales

Edwardian Style Unworn Platinum Filigree Brilliant Cut Diamond Engagement Ring
Located in Berlin, Berlin
? MATERIALS A diamond, brilliant cut, 0.14 ct, Top Wesselton/G, if (internally flawless) Six diamonds
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2010s German Belle Époque Engagement Rings

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Diamond, Platinum

Victorian 1.60 Carat Old Cut Diamond Rare Trilogy Ring 18 Karat/Silver
Located in Napoli, IT
making a statement ring Centre is a Cushion cut Old Mine cut Diamond internally flawless except a tiny
Category

Antique 1880s Victorian Three-Stone Rings

Materials

Diamond, 18k Gold, Silver

Vintage 1990s Certified Untreated 3.2 Carat Ruby Diamond Gold Cocktail Ring
Located in Berlin, Berlin
, approx. 0,90 ct altogether, Top Wesselton/G – Wesselton/H, if (internally flawless) – si White gold 750
Category

1990s Unknown Retro Dome Rings

Materials

Diamond, Ruby, 18k Gold, White Gold

Marquise Moonstone Drop Earrings in Cobalt Blue Zirconium by Zoltan David
By Zoltan David
Located in Austin, TX
diamonds are D to F in color and Internally Flawless to VVS in clarity, with ideal proportions and a total
Category

2010s American Contemporary Drop Earrings

Materials

Diamond, Moonstone, Platinum, Stainless Steel

Tiffany & Co. 18k Gold Platinum Round Diamond 1.09ct I IF Engagement Ring
By Tiffany & Co.
Located in New York, NY
round brilliant diamond center weighing 1.09 carats I color , Very Fine IF ( Internally Flawless
Category

21st Century and Contemporary American Contemporary Engagement Rings

Materials

Diamond, 18k Gold, Platinum

New African IF 3.10 Ct Color Changing Blue Purple Sapphire Sterling Pendant
Located in Eagan, MN
rated IF (Internally Flawless) stone. A gorgeous, very high quality stone. I love the way it changes
Category

2010s Unknown Art Deco Pendant Necklaces

Materials

Sapphire, Blue Sapphire, Purple Sapphire, Silver, Sterling Silver

New Brazilian IF 13.2 ct Purple Blue Ametrine Sterling Necklace Adj Chain
Located in Eagan, MN
This beautiful stone is from Brazil . The IF stands for "Internally Flawless". It is a very high
Category

2010s Unknown Art Deco Pendant Necklaces

Materials

Amethyst, Sapphire, Gold Plate, Yellow Gold, Sterling Silver

New African IF Champagne Morganite & White Sapphire Sterling Earrings
Located in Eagan, MN
These are stud earrings. The IF means it is Internally Flawless. The stones were mined in Africa
Category

2010s Unknown Art Deco Stud Earrings

Materials

Morganite, Sapphire, Silver, Sterling Silver

Tiffany & Co. Harmony Platinum and Diamond Ring 1.02 Carat Internal Flawless
By Tiffany & Co.
Located in Middletown, DE
INVESTMENT grade being INTERNAL FLAWLESS and Triple Excellent Cut, Polish and Symmetry with No Fluorescence
Category

2010s American Engagement Rings

Materials

Diamond, Platinum

Vintage circa 1970 Certified 3.62 Carat Emerald and 4.48 Ct Diamond Cluster Ring
Located in Berlin, Berlin
of marquise-cut diamonds in very good clarities (internally flawless to very small inclusions). Both
Category

Vintage 1970s Italian Retro Cluster Rings

Materials

Diamond, Emerald, 18k Gold, White Gold

Platinum Colorless 1.56 Carat Emerald Cut Diamond Solitaire Engagement Ring
Located in Columbia, MO
Main Stone Clarity IF (Internally Flawless) Natural/Lab-Created Natural Main Stone Diamond Main Stone
Category

21st Century and Contemporary Engagement Rings

Materials

Diamond, White Diamond, Platinum

GIA Certified Canadian Diamond and 18 Karat Gold Ring
By Thesis Gems and Jewelry
Located in Berkeley, CA
: Canadian VS1/D 0.58 ct, and Internally flawless/F 0.52 ct. Invest in diamonds that you can wear all the
Category

2010s American Artisan Engagement Rings

Materials

White Diamond, 18k Gold

Tiffany & Co. Platinum and Diamond Princess Cut Ring 1.11 Carat H IF New
By Tiffany & Co.
Located in Middletown, DE
For your consideration is a BRAND NEW Tiffany & Co Princess cut 1 carat natural diamond solitaire
Category

2010s American Engagement Rings

Materials

Diamond, White Diamond, Platinum

Tiffany & Co. Platinum and Diamond Round Engagement Ring .86 Carat H VVS2
By Tiffany & Co.
Located in Middletown, DE
diamond encrusted halo setting of an additional .22 D-G color and Internal Flawless-VS2 carats of diamonds
Category

2010s American Engagement Rings

Materials

White Diamond, Platinum

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1 Ct Internally Flawless Diamond For Sale on 1stDibs

Surely you’ll find the exact 1 ct internally flawless diamond you’re seeking on 1stDibs — we’ve got a vast assortment for sale. Each design created in this style — which was crafted with great care and often made from Platinum, 18k Gold and Gold — can elevate any look. Our collection of these items for sale includes 1 vintage editions and 10 modern creations to choose from as well. Making the right choice when shopping for a 1 ct internally flawless diamond may mean carefully reviewing examples of this item dating from different eras — you can find an early iteration of this piece from the 20th Century and a newer version made as recently as the 21st Century, both of which have proven very popular over the years. Finding an appealing 1 ct internally flawless diamond — no matter the origin — is easy, but Antinori Fine Jewels, J. Birnbach and Tiffany & Co. each produced a popular version that is worth a look. See these pages for an emerald cut iteration of this accessory, while there are also oval cut cut and round cut cut versions available here, too. If you’re browsing our inventory for a 1 ct internally flawless diamond, you’ll find that many are available today for women, but there are still pieces to choose from for unisex and men.

How Much is a 1 Ct Internally Flawless Diamond?

On average, a 1 ct internally flawless diamond at 1stDibs sells for $54,000, while they’re typically $8,393 on the low end and $3,200,000 for the highest priced versions of this item.