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8 Carat Engagement Rings

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Carat Weight: 8 Carat
ANGARA GIA Certified Natural Cushion Orange Zircon Ring in Yellow Gold
Located in Los Angeles, CA
Double claw-set on a lustrous pinched shank is the GIA certified cushion yellowish orange zircon. It is illuminated by halo diamonds, secured in a U-pave setting. Two bezel-set accen...
Category

21st Century and Contemporary American Modern 8 Carat Engagement Rings

Materials

Yellow Gold

Angara Gia Certified Sapphire Solitaire Reverse Tapered Shank Ring in Rose Gold
Located in Los Angeles, CA
Prong-Set GIA Certified Oval Sapphire Solitaire Reverse Tapered Shank Ring
Category

21st Century and Contemporary American Modern 8 Carat Engagement Rings

Materials

Rose Gold

Angara Gia Certified Sapphire Solitaire Reverse Tapered Shank Ring in Rose Gold
Located in Los Angeles, CA
Prong-Set GIA Certified Oval Sapphire Solitaire Reverse Tapered Shank Ring
Category

21st Century and Contemporary American Modern 8 Carat Engagement Rings

Materials

Rose Gold

ANGARA GIA Certified Natural Cushion Orange Zircon Ring in Rose Gold
Located in Los Angeles, CA
Double claw-set on a lustrous pinched shank is the GIA certified cushion yellowish orange zircon. It is illuminated by halo diamonds, secured in a U-pave setting. Two bezel-set accen...
Category

21st Century and Contemporary American Modern 8 Carat Engagement Rings

Materials

Rose Gold

Angara GIA Certified Natural Cushion Orange Zircon Ring in White Gold
Located in Los Angeles, CA
Double claw-set on a lustrous pinched shank is the GIA certified cushion yellowish orange zircon. It is illuminated by halo diamonds, secured in a U-pave setting. Two bezel-set accen...
Category

21st Century and Contemporary American Modern 8 Carat Engagement Rings

Materials

White Gold

Angara GIA Certified Natural Cushion Orange Zircon Ring in Yellow Gold
Located in Los Angeles, CA
Double claw-set on a lustrous pinched shank is the GIA certified cushion yellowish orange zircon. It is illuminated by halo diamonds, secured in a U-pave setting. Two bezel-set accen...
Category

21st Century and Contemporary American Modern 8 Carat Engagement Rings

Materials

Yellow Gold

ANGARA GIA Certified Natural Cushion Orange Zircon Ring in White Gold
Located in Los Angeles, CA
Double claw-set on a lustrous pinched shank is the GIA certified cushion yellowish orange zircon. It is illuminated by halo diamonds, secured in a U-pave...
Category

21st Century and Contemporary American Modern 8 Carat Engagement Rings

Materials

White Gold

GIA Certified Natural Cushion Orange Zircon Cocktail Ring in Yellow Gold
Located in Los Angeles, CA
This spectacular cocktail ring showcases a GIA certified yellowish orange zircon in a classic prong setting. This cushion gemstone is highlighted by the glistening diamonds pave-set ...
Category

21st Century and Contemporary American Modern 8 Carat Engagement Rings

Materials

Yellow Gold

Angara GIA Certified Natural Cushion Orange Zircon Cocktail Ring in Rose Gold
Located in Los Angeles, CA
This spectacular cocktail ring showcases a GIA certified yellowish orange zircon in a classic prong setting. This cushion gemstone is highlighted by the glistening diamonds pave-set ...
Category

21st Century and Contemporary American Modern 8 Carat Engagement Rings

Materials

Rose Gold

ANGARA GIA Certified Natural Cushion Orange Zircon Ring in Rose Gold
Located in Los Angeles, CA
Double claw-set on a lustrous pinched shank is the GIA certified cushion yellowish orange zircon. It is illuminated by halo diamonds, secured in a U-pave setting. Two bezel-set accen...
Category

21st Century and Contemporary American Modern 8 Carat Engagement Rings

Materials

Rose Gold

ANGARA GIA Certified Natural Cushion Orange Zircon Cocktail Ring in White Gold
Located in Los Angeles, CA
This spectacular cocktail ring showcases a GIA certified yellowish orange zircon in a classic prong setting. This cushion gemstone is highlighted by the glistening diamonds pave-set ...
Category

21st Century and Contemporary American Modern 8 Carat Engagement Rings

Materials

White Gold

ANGARA GIA Certified Natural Cushion Orange Zircon Cocktail Ring in White Gold
Located in Los Angeles, CA
This spectacular cocktail ring showcases a GIA certified yellowish orange zircon in a classic prong setting. This cushion gemstone is highlighted by the glistening diamonds pave-set ...
Category

21st Century and Contemporary American Modern 8 Carat Engagement Rings

Materials

White Gold

ANGARA GIA Certified Natural Cushion Orange Zircon Cocktail Ring in Yellow Gold
Located in Los Angeles, CA
This spectacular cocktail ring showcases a GIA certified yellowish orange zircon in a classic prong setting. This cushion gemstone is highlighted by the glistening diamonds pave-set ...
Category

21st Century and Contemporary American Modern 8 Carat Engagement Rings

Materials

Yellow Gold

GIA Certified 8.11 Carat Blue Sapphire and Diamond Cocktail Ring
Located in Beverly Hills, CA
GIA certified 8.11 carat marquise shape blue sapphire and diamond engagement ring. The sapphire is surrounded by 20 round brilliant white diamonds. GIA describes the center stone as ...
Category

1940s Unknown Retro Vintage 8 Carat Engagement Rings

Materials

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

Rare Blue Zircon Ring, 8.01 Ct Blue Zircon with Diamond Halo, Blue Zircon Ring
Located in Austin, TX
This rare cushion shape blue zircon weighs 7.43 carats and is a rare color. Zircons have a glorious color and this one is top quality. This ring has amazing quality diamonds that su...
Category

2010s American Contemporary 8 Carat Engagement Rings

Materials

Diamond, Zircon, Blue Zircon, 18k Gold, White Gold

Exceptional GIA Certified 8 Carat Round Brilliant Cut Diamond Platinum Studs
Located in Rome, IT
EXCEPTIONAL GIA Certified 8 Carat Round Brilliant Cut Diamond Platinum Studs. Designer: Antinori Material: Platinum Shape: Round Weight: 4ct each Color: F Clarity: VVS
Category

2010s Italian Modern 8 Carat Engagement Rings

Materials

Diamond, White Diamond, Platinum

Sophia D. 8.41 Carat All Diamonds Eternity Ring Band
Located in New York, NY
This gorgeous eternity band in platinum is made up of 20 stones weighing a total of 8.41 carats with 49 pointers. Sophia D by Joseph Dardashti LTD has been known worldwide for 35 ye...
Category

2010s American Art Deco 8 Carat Engagement Rings

Materials

White Diamond, Platinum

David Rosenberg 8.02 Carat Cushion Fancy Yellow VS1 GIA 3 Stone Engagement Ring
Located in Boca Raton, FL
Rosenberg Diamonds & Co. 8.02 carat Cushion Cut Fancy Yellow VS1 clarity is accompanied by a GIA certificate. This beautiful bright cushion cut is set in a handmade platinum & 18k ye...
Category

21st Century and Contemporary American Modern 8 Carat Engagement Rings

Materials

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

8.31 Ct Heart Shaped Pigeon Blood Red Rubellite Invisible Set Ring with Halo
Located in Los Angeles, CA
A beautiful color 8.31 Ct Heart shaped Pigeon Blood Red Rubellite set in the center of an 18K invisible/pave set diamond ring with a halo to create great contrast. Details: Center ...
Category

21st Century and Contemporary American Contemporary 8 Carat Engagement Rings

Materials

Diamond, Rubelite, 18k Gold

18K White & Yellow Gold GIA Certified 8.17 Carat Green Emerald Halo Diamond Ring
Located in San Francisco, CA
This 18k white and yellow gold ring features an 8.17 Carat Emerald cut Natural Green emerald from Zambia. It is encircled by a halo of brilliant round diamonds on a 3.50 mm wide spli...
Category

21st Century and Contemporary American 8 Carat Engagement Rings

Materials

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

Peter Suchy GIA 6.56 Round White Sapphire Diamond Platinum Engagement Ring
Located in Stamford, CT
Sapphire and diamond engagement ring. GIA certified center sapphire in a platinum setting with 2 old European side diamonds and 2 tapered baguette diamonds. Designed and crafted in the Peter Suchy workshop. 1 round white sapphire, MI approx. 6.56cts GIA Certificate # 2115272604 2 Old European cut...
Category

21st Century and Contemporary 8 Carat Engagement Rings

Materials

Diamond, Sapphire, Platinum

J. Birnbach 8.33 carat GIA DIF Marquise Diamond Engagement Ring with Baguettes
Located in New York, NY
This magnificent diamond from the J. Birnbach vault is a rare and important piece that's perfect for any connoisseur's collection. The GIA certified 8.33 carat marquise is D color an...
Category

21st Century and Contemporary American Contemporary 8 Carat Engagement Rings

Materials

Diamond, Platinum

8.3 Carat Tanzanite and White Diamond Ring in 18 Karat White Gold
Located in Hong Kong, HK
This collection features a selection of the most tantalizing Tanzanites. This enchanting East African gemstone can only be procured from one mine in the foothills of Mount Kilimanjar...
Category

21st Century and Contemporary Hong Kong Contemporary 8 Carat Engagement Rings

Materials

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

GIA Certified 8.09 Carats Emerald Cut Diamond Seven-Stone Engagement Ring
Located in New York, NY
Well-crafted high end engagement ring showcasing GIA certified 8.09 carat emerald cut diamond, K color and VS1 in clarity. Flanked by three step cut trapezoid diamonds on each side w...
Category

21st Century and Contemporary American Contemporary 8 Carat Engagement Rings

Materials

Diamond, Platinum

Shreve, Crump & Low 8.3 Carat J SI2 Round Brilliant Cut Diamond Ring
Located in Boston, MA
This platinum solitaire ring features 1 round brilliant cut diamond, weighing 8.30 carats with a respective color and clarity of J-K SI1-SI2. The diamond is set in a custom Shreve, C...
Category

2010s American 8 Carat Engagement Rings

Materials

Diamond, Platinum

Shreve, Crump & Low GIA Certified 8.04 Carat F S12 Round Brilliant Diamond Ring
Located in Boston, MA
This diamond solitaire ring is offered by Shreve, Crump & Low. This 8.04 carat GIA certified F SI2 round brilliant cut diamond measuring 12.78 - 12.83 x 7.91mm is custom set in a han...
Category

2010s American 8 Carat Engagement Rings

Materials

Diamond, Platinum

Shreve, Crump & Low GIA Certified 8.02 Carat Fancy Yellow Asscher Diamond Ring
Located in Boston, MA
This fancy yellow asscher cut diamond is offered by Shreve, Crump & Low. This fancy yellow asscher cut diamond is custom set in a handcrafted ...
Category

2010s American 8 Carat Engagement Rings

Materials

Yellow Diamond, Diamond, 18k Gold, Platinum

J. Birnbach GIA Certified 8.21 Carat G VS1 Emerald Cut Diamond Engagement Ring
Located in New York, NY
This classically designed ring from the J. Birnbach workshop features an 8.21 carat square, emerald cut diamond of G color and VS1 clarity with no fluorescence. Set in a handmade, pl...
Category

21st Century and Contemporary American Contemporary 8 Carat Engagement Rings

Materials

Diamond, Platinum

9.64 Carat Blue Zircon Diamond 18 Karat White Gold Ring
By DGI
Located in Los Angeles, CA
A beautiful Blue Zircon and Diamond ring that can be a nice Engagement ring or a gorgeous Cocktail Ring! Blue Zircon is a natural stone mined mainly in Sri Lanka, Myanmar, and Austra...
Category

21st Century and Contemporary American Modern 8 Carat Engagement Rings

Materials

Diamond, Zircon, 18k Gold, White Gold

Roman Malakov 8.07 Carat Radiant Cut Yellow Diamond Pave Engagement Ring
Located in New York, NY
Timeless and classic pave engagement ring showcasing a vibrant 8.07 carat radiant cut diamond certified by GIA as fancy yellow color, VS1 in clarity, set in a four prong 18k yellow gold basket. Accented by 60 pieces of brilliant round diamonds weighing 1.20 carat total, set in the gallery and shank in a half eternity channel...
Category

21st Century and Contemporary American Contemporary 8 Carat Engagement Rings

Materials

Yellow Diamond, 18k Gold, Yellow Gold

Roman Malakov GIA Certified 8.35 Carats Emerald Cut Diamond Engagement Ring
Located in New York, NY
A stunning well-crafted engagement ring showcasing 8.35 carats emerald cut diamond certified by GIA as H color and VVS2 in clarity. Flanking the center diamond are perfectly matched ...
Category

21st Century and Contemporary American Contemporary 8 Carat Engagement Rings

Materials

Diamond, Platinum

8.0 Carat Morganite and Diamond Ring in 18 Karat Rose Gold
Located in Hong Kong, HK
This collection features an array of magnificent morganites! Accented with diamonds these rings are made in rose gold and present a classic yet elegant look. Classic morganite ring...
Category

21st Century and Contemporary Hong Kong Contemporary 8 Carat Engagement Rings

Materials

Diamond, White Diamond, Morganite, Gold, 18k Gold, Rose Gold

Roman Malakov 8.01 Carat Radiant Cut Diamond Three-Stone Engagement Ring
Located in New York, NY
This classy and vibrant three-stone engagement ring showcasing 8.01 carat radiant cut diamond certified by GIA as J color, SI1 clarity, flanked by two trapezoid diamonds weighing 1.0...
Category

21st Century and Contemporary American Contemporary 8 Carat Engagement Rings

Materials

Diamond, Platinum

Peter Suchy GIA 5.65 Carat Octagon Sapphire Platinum Three-Stone Engagement Ring
Located in Stamford, CT
Octagonal step cut three-stone Sapphire engagement ring. Natural color no heat no enhancements and GIA certified center stone. Very light blue with good brilliance. Fine bright blue ...
Category

2010s 8 Carat Engagement Rings

Materials

Blue Sapphire, Sapphire, Platinum

Natural Fancy Intense Yellow Diamond Ring, 8.06 Carat
Located in New Orleans, LA
An exceptionally rare and astonishing 8.06-carat fancy intense yellow diamond reflects the radiance of pure sunshine in this incredible ring. Two dazzling white accent diamonds weighing 0.50 carats each flank this breathtaking gemstone, joined together in a classic 18K white gold setting. Making this gorgeous diamond all the more rare and valuable is its Gemological Institute of America (GIA) certification stating that its all-natural fancy intense...
Category

21st Century and Contemporary American Modern 8 Carat Engagement Rings

Materials

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

8.20 Carat Natural Sapphire and Diamond Ring
Located in New Orleans, LA
A dramatic sapphire weighing approximately 8.20 carats is set at the center of this classic ring. Exhibiting a deep royal blue color, the stunning gem is certified by the Gemological...
Category

21st Century and Contemporary Unknown Modern 8 Carat Engagement Rings

Materials

Sapphire, Diamond, Blue Sapphire, Platinum

8.31 Carat Emerald cut White Diamond And Baguette Ring In 18K Gold.
Located in New York, NY
A truly gorgeous engagement ring designed and handcrafted in 18k gold by Moguldiam Inc features 7.01 carat Emerald cut diamond with M color and SI 1 clarity and is flanked by 6 whi...
Category

2010s Emirian Contemporary 8 Carat Engagement Rings

Materials

Diamond, 18k Gold

Peter Suchy 8.15 Carat Sapphire Three-Stone Platinum Engagement Ring
Located in Stamford, CT
Natural AGL certified three-stone sapphire engagement ring. Emerald cut center sapphire sapphire, AGL certified natural light gray blue white. The light blue is a slightly purplish...
Category

21st Century and Contemporary 8 Carat Engagement Rings

Materials

Blue Sapphire, Sapphire, Platinum

Peter Suchy GIA 6.46 Carat Oval Sapphire Diamond Halo Gold Engagement Ring
Located in Stamford, CT
Sapphire and diamond engagement ring. Created in the Peter Suchy Workshop, this GIA certified 6.46 carat oval bright blue periwinkle sapphire mount...
Category

21st Century and Contemporary American 8 Carat Engagement Rings

Materials

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

J. Birnbach 8.11 carat Round Diamond Engagement Ring with Tapered Baguettes
Located in New York, NY
This impressive 8.11 carat round diamond is perfect for anyone looking for statement sparkle! Certified by GIA to be G color, VS1 clarity, and triple excellent cut, this is easily th...
Category

21st Century and Contemporary American 8 Carat Engagement Rings

Materials

Diamond, Platinum

5.89 Carat Natural Oval Sapphire Diamond Platinum Engagement Ring
Located in Stamford, CT
5.89ct Oval brilliant cut white sapphire and diamond engagement ring. In a handmade platinum setting with princess and baguette cut accent diamonds. AGL certified 1 Oval near colorl...
Category

Late 20th Century 8 Carat Engagement Rings

Materials

Diamond, Sapphire, Platinum

J. Birnbach GIA 8.48 carat Emerald Cut Diamond Ring with Tapered Baguettes
Located in New York, NY
This exquisite piece by J. Birnbach evokes timeless glamour and elegance. The ring features a 8.48 carat GIA certified emerald cut diamond, J color and VS2 clarity as described by GI...
Category

2010s American 8 Carat Engagement Rings

Materials

Diamond, Platinum

Certified 8.05 Carat Ceylon Sapphire & Diamond Ring in 18 Karat White Gold
Located in Great Neck, NY
Certified Cushion Ceylon Sapphire weighing 8.05 carats Measuring (13.27x11.41x5.68) mm 36 Round Diamonds weighing .77 carats 2 Trapezoid Diamonds Weighing .36 carats G-VS Set in 18 k...
Category

2010s American Modern 8 Carat Engagement Rings

Materials

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

Gia 8.42ctw Ceylon No Heat Cornflower Blue Sapphire Diamond Platinum 18kyg Ring
Located in New York, NY
GIA Unheated 8.42ctw Ceylon Natural Cornflower Blue Sapphire Diamond Cluster Platinum 18K Vintage Ring Make a sparkling statement with this one of the most recognized and iconic style, Mid-20th Century CEYLON SAPPHIRE and Diamond Ring. The Sapphire is beyond words!! A NATURAL, NO HEAT in beautiful Cornflower Blue, transparent, bright, richly saturated, luscious color 5.57ct Sapphire , that is rarely available on today's market! It is truly an investment Gem, accompanied by a recent GIA certificate stating: Natural Sapphire, No indications of Heating with Ceylon ( Sri Lanka ) for Origin. The measurements of the Oval Shape Sapphire are 11.22x8.43x7.27mm. Tone: Medium Saturation: Medium Extinction: Transparent Clarity: MI2 , moderately included, all natural and no obvious inclusions to the naked eye. ( VS2) Overall grade: Very good. An electric gem radiates from within a superb and stunning platinum and 18k diamond...
Category

1950s Modern Vintage 8 Carat Engagement Rings

Materials

Blue Sapphire, Diamond, 18k Gold, Platinum

Natural Untreated GIA 8.0ctw Art Deco Turquoise Diamond Platinum Cluster Ring
Located in New York, NY
Art Deco Natural Untreated GIA 8.0ctw Turquoise Diamond Vintage Cluster Platinum Ring. A Beautiful Authentic Classic Art Deco CIRCA 1920s Turquoise a...
Category

1920s Art Deco Vintage 8 Carat Engagement Rings

Materials

Diamond, Turquoise, Platinum

Emilio Jewelry 8 Carat Muzo No Oil Unenhanced Certified Emerald Ring
Located in New York, NY
Showcasing a very special certified 8ct old mine Muzo Colombian emerald center stone of excellent color, clarity and saturation. Hand made in the Emilio ...
Category

21st Century and Contemporary 8 Carat Engagement Rings

Materials

White Diamond, Emerald

Vintage Unheated Sapphire Trillion Diamond Engagement Ring 6.26 Carat
Located in Lakewood, NJ
A remarkably dignified oval shape Ceylon sapphire and diamond ring. Center sapphire is 6.26 carats and Unheated. It's set between two triangle shape diamonds of high color and clari...
Category

Mid-20th Century American Art Deco 8 Carat Engagement Rings

Materials

Diamond, Sapphire, Blue Sapphire, White Gold

Peter Suchy 7.15 Carat Ceylon Sapphire Diamond Platinum Engagement Ring
Located in Stamford, CT
Cushion cut Ceylon sapphire engagement ring with two step cut half-moon side diamonds. The platinum setting is a handmade curved prong style design. The center sapphire has a vivid ...
Category

21st Century and Contemporary 8 Carat Engagement Rings

Materials

Blue Sapphire, Diamond, Sapphire, Platinum

Shop 8-Carat Diamond Rings and Other Engagement Rings on 1stDibs

Looking for an 8-carat diamond engagement ring?

Shopping for the right antique, new or vintage engagement ring can prove daunting. Whether you’re looking for that perfect Art Deco engagement ring, a vintage sapphire engagement ring or a fashionable contemporary accessory, it’s important to choose a style that speaks to you.

Rings have long been signifiers of marriage and committed relationships. The modern diamond engagement ring can be traced back to 1477, when Archduke Maximilian of Austria commissioned an expensive diamond ring for his betrothed. Diamond rings subsequently became extremely popular among the European aristocracy. Later, during the Victorian era, the popularity of diamond engagement rings had filtered down to the middle class, owing to the increasing accessibility — and affordability — of gold and diamonds.

Authentic antique Victorian-era engagement rings were frequently set in rose or yellow gold and they are highly collectible. Designs for Victorian engagement rings often featured repoussé work and chasing, in which patterns are hammered into the metal. Diamonds were likely to be small rose- or old-mine-cut (the ancestor of today’s cushion-cut) stones. The former are often associated with antique styles like Victorian or Georgian, as rose-cut diamonds are uncommon in modern jewelry. The diamonds were typically set in a group of five in a band or as a solitaire.

Victorian-era engagement rings also saw other gemstones accompanying diamonds. Small seed pearls and moonstones were popular. Other sentimental and romantic motifs such as hearts and stars took hold as well. When Prince Albert became engaged to Queen Victoria, he gave her a serpent ring with emerald eyes, her birthstone. This initiated a widespread craze for snake jewelry.

In 1886, esteemed American luxury firm Tiffany & Co. introduced its solitaire diamond design, which is still among the most popular styles of engagement rings. The Tiffany Setting raises the stone above the band on six prongs, allowing its facets to catch the light and reflect through the stone.

French jewelry house Cartier, which pioneered the use of platinum in fine jewelry and helped define Art Deco, ​​sought to render the diamonds in their engagement rings and other rings as brilliantly as possible. The brand’s timeless Solitaire 1895 engagement ring gave the impression of delicate lace.

Edwardian engagement rings and, afterward, Art Deco engagement rings that followed in the wake of Queen Victoria’s death in 1901 would be characterized by complex geometric designs and platinum settings. Owing to the Art Nouveau movement, nature was a major theme for Edwardian jewelry, while the diamond ring designs of the Art Deco period were inspired by Cubism as well as ancient Egypt. Art Deco engagement rings are bold and colorful and feature gems cut in nontraditional ways.

Engagement rings designed during World War II were made from two-toned metals and smaller stones. Large stones were scarce, and platinum was reserved for the military. Postwar engagement rings were intended to be simpler and focused on the beauty of the diamond.

In 1947, De Beers Consolidated Mines, with the support of Philadelphia ad agency N.W. Ayer & Son, introduced the slogan “A diamond is forever” in a marketing campaign that emphasized a connection between diamonds and romance. Diamond sales skyrocketed, and diamond engagement rings became intertwined with the post–World War II marriage boom, which coincided with the ascension of specific diamond cuts.

The round brilliant cut, which consists of an astounding 58 facets, continues to be the most popular cut to this day. Jewelers such as Harry Winston had already gained a reputation for his talents by the time the De Beers campaign debuted, and he is said to have favored emerald-cut diamonds.

When it comes to carat weight and finding the perfect 8-carat diamond ring, you'll want to become familiar with the 4Cs, which is the official grading system that was established by the Gemological Institute of America (GIA).

According to the GIA, “Diamonds are weighed to a thousandth (0.001) of a carat and then rounded to the nearest hundredth, or point. Over a carat, diamond weights are usually expressed in carats and decimals.” Out of all the 4Cs, the weight of the diamond is the most scientific and less a matter of opinion. But the weight is also not the most important signifier of a stone’s value. A three-carat gem can be less valuable than a one-carat stone, for example, if all of the other attributes are of lesser quality in the larger diamond. 

For everything from understanding the 4Cs to choosing between antique, vintage, contemporary and custom styles, get expert tips to help you find just the right ring. Additionally, explore our buying guides for a close look at antique engagement rings, Art Deco engagement rings and vintage engagement rings

On 1stDibs, shop 8-carat diamond and sapphire engagement rings and other antique and vintage rings from top jewelers around the world.

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