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18K White Gold .71ct Princess Cut Diamond Ring, 3.3g, GSL Certified
18K White Gold .71ct Princess Cut Diamond Ring, 3.3g, GSL Certified

18K White Gold .71ct Princess Cut Diamond Ring, 3.3g, GSL Certified

Located in Laguna Beach, CA

18K White Gold .71ct Princess Cut Diamond Ring, 3.3g, GSL Cert. Ladies princess cut diamond ring in 18k white gold.

Category

Mid-20th Century Unknown Engagement Rings

Materials

Diamond, 18k Gold, White Gold

.40 Carat Diamond Art Deco Platinum Engagement Ring
.40 Carat Diamond Art Deco Platinum Engagement Ring

.40 Carat Diamond Art Deco Platinum Engagement Ring

Located in Stamford, CT

EGL cert# US57042003D 6 single cut diamonds, approx. total weight .09cts, F, VS.

Category

Early 20th Century Engagement Rings

Materials

Diamond, Platinum

Certified Tiffany & Co Round Cut Diamond 0.25ct H VVS1 Platinum Solitaire Ring
Certified Tiffany & Co Round Cut Diamond 0.25ct H VVS1 Platinum Solitaire Ring

Certified Tiffany & Co Round Cut Diamond 0.25ct H VVS1 Platinum Solitaire Ring

By Tiffany & Co.

Located in Birmingham, GB

Vintage Tiffany & Co Natural Round Cut Diamond 950 Platinum Solitaire or Engagement Ring With Tiffany Diamond Cert.

Category

21st Century and Contemporary French Solitaire Rings

Materials

Diamond, White Diamond, Platinum

No-Heat Burmese Ruby & Diamond Ring, AGL & Gübelin Certified
No-Heat Burmese Ruby & Diamond Ring, AGL & Gübelin Certified

No-Heat Burmese Ruby & Diamond Ring, AGL & Gübelin Certified

Located in New York, NY

Ruby Weight: 7.15 ct Origin: Burma (Myanmar) Treatment: None (No Heat) Certification: Gübelin & AGL Diamond Weight: 6.22 ct (8 stones) Diamond Certs: GIA Shape: Oval (ruby & diamonds...

Category

2010s American Cocktail Rings

Materials

Diamond, Ruby, 18k Gold, Platinum

Platinum Pink Sapphire and Baguette Diamond Ring with AGL Report
Platinum Pink Sapphire and Baguette Diamond Ring with AGL Report

Platinum Pink Sapphire and Baguette Diamond Ring with AGL Report

By Non Branded

Located in Lexington, KY

Ring size: size 6.5 1 = 2.17 ctw, oval cut pink sapphire 4 = .40 cttw, baguette cut, G color, VS2 clarity diamonds AGL cert Platinum band/mounting Gram weight: 4.85g

Category

Vintage 1950s Contemporary Engagement Rings

Materials

Diamond, Pink Sapphire, Platinum

GIA Certified Platinum 4.51 Carat E/VS1 Diamond Engagement Ring
GIA Certified Platinum 4.51 Carat E/VS1 Diamond Engagement Ring

GIA Certified Platinum 4.51 Carat E/VS1 Diamond Engagement Ring

By AENEA Jewellery

Located in Salzburg, Salzburg

Gemstone: White Diamond 4,51ct. (E/VS1, GIA Cert.) Paving: White Diamonds 0,81ct.

Category

2010s Austrian Modern Engagement Rings

Materials

White Diamond, Platinum

GIA Certified 7, 03 Carat Sapphire Diamond Platinum Engagement Ring AENEA
GIA Certified 7, 03 Carat Sapphire Diamond Platinum Engagement Ring AENEA

GIA Certified 7, 03 Carat Sapphire Diamond Platinum Engagement Ring AENEA

By AENEA Jewellery

Located in Salzburg, Salzburg

Gemstone: Ceylon Saphire 7,03ct. (GIA Cert.) Paving: White Diamonds 1,56ct. Material: Platinum 950 Ring Size: 53 European - can be adapted to other sizes For further information ...

Category

2010s Austrian Modern Engagement Rings

Materials

White Diamond, Blue Sapphire, Diamond, Sapphire, Platinum

Dilamani 1.31 Carat Natural Fancy Yellow Cushion Diamond Halo Gold Earrings
Dilamani 1.31 Carat Natural Fancy Yellow Cushion Diamond Halo Gold Earrings

Dilamani 1.31 Carat Natural Fancy Yellow Cushion Diamond Halo Gold Earrings

By Dilamani

Located in Stamford, CT

Dilamani Cert# ex43820dx 2 cushion shape natural fine fancy yellow diamonds, crystal slices, rose cut tops, approx. total weight 1.31cts, I1, guaranteed natural and untreated, yello...

Category

21st Century and Contemporary Stud Earrings

Materials

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

Halo Interchangeable Diamond, Emerald & Ruby Earring Set with Ring
Halo Interchangeable Diamond, Emerald & Ruby Earring Set with Ring

Halo Interchangeable Diamond, Emerald & Ruby Earring Set with Ring

Located in New York, NY

Earring Dimension- Diameter 14.67 mm, Height 5.53 mm Earrings Weight- 10.18 Grams Hand Crafted Ballerina Style Diamond Ring Details- Center Diamond- 0.55 Carat Round Brilliant Cut...

Category

2010s American Art Deco Stud Earrings

Materials

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

Ballerina Style Triple Halo Diamond Engagement Ring GIA Certified D / VS1
Ballerina Style Triple Halo Diamond Engagement Ring GIA Certified D / VS1

Ballerina Style Triple Halo Diamond Engagement Ring GIA Certified D / VS1

Located in New York, NY

Details: Center Diamond- 0.55 Carat Round Brilliant Cut, D/ VS1 GIA Cert Side- 114 Diamonds, Baguette Cut, 4.18 Total Diamond Weight, E-G VS 18 K White Gold.

Category

2010s American Contemporary Engagement Rings

Materials

Diamond, 18k Gold, White Gold

Vintage Style 0.25 Carat Diamond 18 Karat Gold Engagement Ring by NOOI JEWELRY
Vintage Style 0.25 Carat Diamond 18 Karat Gold Engagement Ring by NOOI JEWELRY

Vintage Style 0.25 Carat Diamond 18 Karat Gold Engagement Ring by NOOI JEWELRY

Located in Dueville, IT

Don't hesitate to contact us with any questions. Diamonds: Centre stone: 4mm diamond G colour VS clarity 0.25 ct Certificated Diamond GIA or similar cert.

Category

2010s Italian Baroque Engagement Rings

Materials

Diamond, Gold, 18k Gold

Diamond Halo Pendand .65ct Round Brilliant GIA 14K Brand New
Diamond Halo Pendand .65ct Round Brilliant GIA 14K Brand New

Diamond Halo Pendand .65ct Round Brilliant GIA 14K Brand New

Located in Dearborn, MI

Genuine GIA Certified Diamond Halo Pendant .65ct Round Brilliant GIA 14K Brand New Featuring a Genuine .50ct Natural Round Brilliant Cut GIA Certified Center Diamond Gorgeous Roun...

Category

2010s Modern Pendant Necklaces

Materials

Diamond, 14k Gold, White Gold

.90 Carat Bright Green Emerald Diamond Platinum Victorian Engagement Ring
.90 Carat Bright Green Emerald Diamond Platinum Victorian Engagement Ring

.90 Carat Bright Green Emerald Diamond Platinum Victorian Engagement Ring

Located in Stamford, CT

Enhancement: level of low clarity enhancement. AGL Cert. # CS52447. 14 single cut Diamonds, approx. total weight .10ct, G, VS1 – SI1 Size 4 and sizable Platinum Tested: Platinum 5.1...

Category

Early 20th Century Victorian Fashion Rings

Materials

Diamond, Emerald, Platinum

1.34 Carat Diamond Art Deco Platinum Engagement Ring, Circa 1930's
1.34 Carat Diamond Art Deco Platinum Engagement Ring, Circa 1930's

1.34 Carat Diamond Art Deco Platinum Engagement Ring, Circa 1930's

Located in Stamford, CT

EGL cert number US50494101D 10 round diamonds approx. total weight., .10cts Size 7 and sizable Platinum Stamped: Platinum 3.6 grams 5/16 x 9/16 inch

Category

Early 20th Century Engagement Rings

Materials

Diamond, Platinum

Peter Suchy GIA Oval 2.02 Carat Sapphire Diamond Platinum Engagement Ring
Peter Suchy GIA Oval 2.02 Carat Sapphire Diamond Platinum Engagement Ring

Peter Suchy GIA Oval 2.02 Carat Sapphire Diamond Platinum Engagement Ring

By Peter Suchy

Located in Stamford, CT

Designed crafted in Peter Suchy Workshop. 1 oval blue sapphire SI approximate 2.02 carats. GIA Cert # 6183881796 2 pear shape diamonds H VS2 approximate .40 carats Size: 6 and si...

Category

21st Century and Contemporary Engagement Rings

Materials

Diamond, Blue Sapphire, Sapphire, Platinum

Diamond Halo Pendant .55ct Round Brilliant GIA Certified 14K Gold Brand New
Diamond Halo Pendant .55ct Round Brilliant GIA Certified 14K Gold Brand New

Diamond Halo Pendant .55ct Round Brilliant GIA Certified 14K Gold Brand New

Located in Dearborn, MI

Diamond Halo Pendant .55ct Round Brilliant GIA 14K Brand New Featuring a Genuine .39ct Natural Round Brilliant Cut GIA Certified Center Diamond Gorgeous Round Brilliant Diamond En...

Category

2010s Pendant Necklaces

Materials

Diamond, 14k Gold, White Gold

Sapphire 4 Carat Each Earring Gold with Circle of Diamonds with Certificate
Sapphire 4 Carat Each Earring Gold with Circle of Diamonds with Certificate

Sapphire 4 Carat Each Earring Gold with Circle of Diamonds with Certificate

By Crivelli

Located in Roma, IT

Each Earring White Gold with Circle of Diamonds, with Certificate. Contemporary Design for this Earrings with a Pair of Stunning Blue Oval Sapphire: ct. 4.08 + ct. 4.04, size 10.48x...

Category

2010s Italian Contemporary Clip-on Earrings

Materials

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

Peter Suchy GIA 4.02 Carat Pink Sapphire Diamond Platinum Engagement Ring
Peter Suchy GIA 4.02 Carat Pink Sapphire Diamond Platinum Engagement Ring

Peter Suchy GIA 4.02 Carat Pink Sapphire Diamond Platinum Engagement Ring

By Peter Suchy

Located in Stamford, CT

All stone original cushion cut. GIA Cert# 2201480885 2 round diamonds approx. total weight 1.53ct, G-H, VS2 Size 6.5 and sizable Platinum Stamped Plat 8.7 grams

Category

21st Century and Contemporary Three-Stone Rings

Materials

Diamond, Pink Sapphire, Sapphire, Platinum

Peter Suchy GIA 1.58 Carat Round Diamond Platinum Three-Stone Engagement Ring
Peter Suchy GIA 1.58 Carat Round Diamond Platinum Three-Stone Engagement Ring

Peter Suchy GIA 1.58 Carat Round Diamond Platinum Three-Stone Engagement Ring

By Peter Suchy

Located in Stamford, CT

Total Weight 1.10cts D, VS2 GIA Cert# 6194827216 2 Pear Shape Diamonds Approx. Total Weight .48ct D-E, VS1 Size 6.25 And Sizable Platinum Stamped: Plat 6.63mm Wide at Top 5.5mm High ...

Category

21st Century and Contemporary Engagement Rings

Materials

Diamond, Platinum

Ruby 3 Ct. Each Earrings White Gold with Circle of Diamonds with Certificate
Ruby 3 Ct. Each Earrings White Gold with Circle of Diamonds with Certificate

Ruby 3 Ct. Each Earrings White Gold with Circle of Diamonds with Certificate

By Crivelli

Located in Roma, IT

Each Earrings White Gold with Circle of Diamonds, with Certificate. Contemporary Design for this Earrings with a Pair of Stunning Intense Red Ruby: ct. 3.04 size 9.33X7.21X5.29 (cert...

Category

2010s Italian Contemporary Clip-on Earrings

Materials

Diamond, Ruby, 18k Gold, White Gold

Natural Round Brilliant Cut Diamond Eternity Engagement Ring 14 Karat in Stock
Natural Round Brilliant Cut Diamond Eternity Engagement Ring 14 Karat in Stock

Natural Round Brilliant Cut Diamond Eternity Engagement Ring 14 Karat in Stock

Located in Boca Raton, FL

Diamonds are K-L in color and VS1-VS2 in clarity EGL Cert #: 61567811D Mounting Diamond Details: Approx. 2.25ctw of Round Diamonds Diamond Measurements: 8.13 x 8.11 x 4.34 mm Ring Si...

Category

21st Century and Contemporary American Engagement Rings

Materials

Diamond, Gold, 14k Gold, White Gold

GIA Certified 1.09 Carat Round Diamond Engagement Ring 14 Karat in Stock
GIA Certified 1.09 Carat Round Diamond Engagement Ring 14 Karat in Stock

GIA Certified 1.09 Carat Round Diamond Engagement Ring 14 Karat in Stock

Located in Boca Raton, FL

GIA Certified 14k White Gold 1.09ctw Round Brilliant Diamond Engagement Ring Style: 14k White Gold Round Brilliant Diamond Engagement Ring Main Diamond: Approx. 0.37ctw of Round Bri...

Category

21st Century and Contemporary American Engagement Rings

Materials

Diamond, Gold, 14k Gold, White Gold

6.35 Carat Oval Rubelite Tourmaline Diamond Gold Cocktail Engagement Ring
6.35 Carat Oval Rubelite Tourmaline Diamond Gold Cocktail Engagement Ring

6.35 Carat Oval Rubelite Tourmaline Diamond Gold Cocktail Engagement Ring

Located in Stamford, CT

GIA Cert # 1152677334 10 tapered baguette diamonds, approx. total weight .60cts, H, VS 2 straight baguette diamonds, approx. total weight .24cts, H, VS Size 6.75 and sizable 8.0 gram...

Category

20th Century Engagement Rings

Materials

Diamond, Rubelite, Tourmaline, Gold, 14k Gold, 18k Gold, White Gold, Yel...

AGL Certified 3.8 Carat Oval No Heat Burma Ruby Ring & Diamond Halo in Platinum
AGL Certified 3.8 Carat Oval No Heat Burma Ruby Ring & Diamond Halo in Platinum

AGL Certified 3.8 Carat Oval No Heat Burma Ruby Ring & Diamond Halo in Platinum

By Gad & Co.

Located in Miami, FL

Item Details: - Type: Ring - Metal: Platinum 900 / 18K Yellow Gold - Weight: 8.65 Grams - Setting: Prong, Halo - Size: 6.25 - Ring Face Size: 2.7 x 2.05 cm - Diamonds: 6 Round cut di...

Category

2010s Burmese Modern Cocktail Rings

Materials

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

Peter Suchy GIA 5.03 Carat Sapphire Diamond Three-Stone Platinum Engagement Ring
Peter Suchy GIA 5.03 Carat Sapphire Diamond Three-Stone Platinum Engagement Ring

Peter Suchy GIA 5.03 Carat Sapphire Diamond Three-Stone Platinum Engagement Ring

By Peter Suchy

Located in Stamford, CT

GIA cert# 5212049123 2 trapezoid diamonds, H SI approx. .43cts Size 6.5 and sizable Platinum Stamped: PLAT 6.6 grams Width at top: 10.5mm Height at top: 7.4mm Width at bottom: 1.9mm...

Category

21st Century and Contemporary Engagement Rings

Materials

Diamond, Sapphire, Yellow Sapphire, Platinum

GIA Certified 3.19 Carat Emerald Cut Diamond Engagement Ring 14 Karat in Stock
GIA Certified 3.19 Carat Emerald Cut Diamond Engagement Ring 14 Karat in Stock

GIA Certified 3.19 Carat Emerald Cut Diamond Engagement Ring 14 Karat in Stock

Located in Boca Raton, FL

Diamond is K in color and VS1 in clarity. Diamonds in mounting are approx. 0.18ctw of Round Cut Diamonds GIA Cert #: 2211072101 Ring Size: 6.25 (Can be sized) Additional Details: Thi...

Category

21st Century and Contemporary American Engagement Rings

Materials

Diamond, Gold, Rose Gold, 14k Gold

Rare 1940s Diamond and Emerald Ring in Palladium 1.83 E - VS1 Shield Cut
Rare 1940s Diamond and Emerald Ring in Palladium 1.83 E - VS1 Shield Cut

Rare 1940s Diamond and Emerald Ring in Palladium 1.83 E - VS1 Shield Cut

Located in Wailea, HI

Rare 1940's Diamond and Emerald Ring in Palladium 1.83 E - VS1 Shield Cut One Shield Cut Diamond weighing 1.83 carats [E - VS1] GIA certed Fourteen Single Cut Cut Diamonds weighing ...

Category

Early 20th Century American Solitaire Rings

Materials

White Diamond, Emerald, Palladium

NEW SSEF* 4.542CT Pigeon Red Unheated Burma Mogok Ruby Diamond Ring in Platinum
NEW SSEF* 4.542CT Pigeon Red Unheated Burma Mogok Ruby Diamond Ring in Platinum

NEW SSEF* 4.542CT Pigeon Red Unheated Burma Mogok Ruby Diamond Ring in Platinum

Located in Warren, NJ

This ring is a true work of art and would make a perfect addition to any fine jewelry collection. SSEF* Cert. No. 34686 10 Round Diamonds totaling Approximately 1 CT F/VS2 Hearts...

Category

Antique Mid-19th Century Fashion Rings

Materials

Diamond, Ruby, Platinum

1.77 cts total Diamonds Made in Italy Rotating Head Essence Gold Engagement Ring
1.77 cts total Diamonds Made in Italy Rotating Head Essence Gold Engagement Ring

1.77 cts total Diamonds Made in Italy Rotating Head Essence Gold Engagement Ring

By Beatrice Barzaghi Milano

Located in Milan, IT

The exclusive Essence ring features a rotating head set with n. 96 round diamonds F-G, vvs-vs for a total weight of 1,20 carats set “a Martello” (hammered), a special and complex tec...

Category

21st Century and Contemporary Italian Cluster Rings

Materials

Diamond, Gold, 18k Gold, Rose Gold

Tiffany & Co. Platinum & 18 Karat Yellow Gold “Scalloped” Key Pin
Tiffany & Co. Platinum & 18 Karat Yellow Gold “Scalloped” Key Pin

Tiffany & Co. Platinum & 18 Karat Yellow Gold “Scalloped” Key Pin

By Tiffany & Co.

Located in Scottsdale, AZ

Cert # 62754311 / R08090539 Diamond: 76 round cut = .79cttw Color: G-J Clarity: IF-SI1 Dimensions: key measures 51.4 X 19.3mm Weight: 10.52 grams

Category

21st Century and Contemporary Brooches

Materials

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

Emerald Symphony - Fine Columbian Emerald Earrings that can be worn in 4 ways
Emerald Symphony - Fine Columbian Emerald Earrings that can be worn in 4 ways

Emerald Symphony - Fine Columbian Emerald Earrings that can be worn in 4 ways

Located in Hong Kong, HK

The finale: 314 Round Brilliant Diamonds (0.76 cts) that shimmer like a thousand crystalline notes in perfect harmony.

Category

2010s Hong Kong Art Deco Dangle Earrings

Materials

Emerald, 18k Gold

AGL Certified 17 Carat Octagonal Cut Minor Oil Colombian Emerald Bezel Set Ring
AGL Certified 17 Carat Octagonal Cut Minor Oil Colombian Emerald Bezel Set Ring

AGL Certified 17 Carat Octagonal Cut Minor Oil Colombian Emerald Bezel Set Ring

By Gad & Co.

Located in Miami, FL

Item Details: - Metal: 18K White Gold - Weight: 11.83 Grams - Setting: Bezel, Pave - Size: 6.75 - Ring Face Measurements: 2.9 x 2.65 CM Emerald Details: - Type: Natural Emerald - Ca...

Category

2010s Colombian Art Deco Cocktail Rings

Materials

Emerald, 18k Gold, White Gold

Gubelin Cert 6.81 Carat Emerald Diamond Platinum Ring
Gubelin Cert 6.81 Carat Emerald Diamond Platinum Ring

Gubelin Cert 6.81 Carat Emerald Diamond Platinum Ring

Located in Sarasota, FL

Platinum Ring with 1 Emerald Weighing 6.81 Carats along with 4.71 Carats of Diamonds. Emerald is Gubelin and C. Dunaigre Certified. We Offer Complementary Sizing with every Purchase.

Category

21st Century and Contemporary More Rings

Materials

Diamond, Emerald, Platinum

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Certed Diamonds For Sale on 1stDibs

There is a broad range of certed diamonds for sale on 1stDibs. All of the items for sale were constructed with extraordinary care, often using Platinum, Gold and 18k Gold. Our collection of these items for sale includes 320 vintage editions and 480 modern creations to choose from as well. Our inventory has long been popular, and it includes earlier versions that date to the 18th Century and newer variations that were made as recently as the 21st Century. Pieces in our collection of certed diamonds made by Art Deco jewelers — as well as those associated with Modern — are very popular. J. Birnbach, Polya Medvedeva Jewellery and Tiffany & Co. each produced beautiful examples of these items that are worth considering. Today, if you’re looking for round cut certed diamonds and are unable to find the perfect match, our selection also includes cushion cut and emerald cut alternatives. If you’re browsing the variety of certed diamonds for sale, you’ll find that many are available today for women, but there are still pieces to choose from for men.

How Much are Certed Diamonds?

Prices for certed diamonds can differ depending upon size, time period and other attributes — at 1stDibs, these accessories begin at $1,100 and can go as high as $4,450,000, while certed diamonds, on average, fetch $23,387.

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.