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1 Carat Marquise

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1 Carat Marquise Diamond Ring
By Antinori Fine Jewels
Located in Rome, IT
Gorgeous engagement ring features a bright white and eye clean 1 carat marquise cut diamond
Category

2010s Italian Modern Engagement Rings

Materials

Diamond, White Diamond

1 Carat Marquise Diamond Platinum Engagement Ring
Located in Atlanta, GA
Details: Cut: Marquise Carat: 1 Color: G Clarity: SI2 Accent Diamond Details: Cut: Baguettes CaraT: .15
Category

Vintage 1980s Unknown Modern Engagement Rings

Materials

Diamond, Platinum

Natural 1 Carat Marquise Pear Diamond Earrings 18 Karat White Gold Fine Jewelry
By Spectrum Jewels
Located in IN
Indulge in the exquisite elegance of these Natural 1 Carat Marquise Pear Diamond Earrings
Category

21st Century and Contemporary Indian Modern Stud Earrings

Materials

Diamond, 18k Gold, White Gold

1 Carat Marquise Shape Center Diamond 14 Karat White Gold Ring, Art Deco Style
Located in New York, NY
Approximately 1 Carat Marquise Shape Center Diamond Engagement 14 Karat White Gold Ring. Bezel set
Category

Early 2000s Engagement Rings

Materials

Diamond, Gold, 14k Gold, White Gold

1 Carat Marquise Peridot and Round Diamond Star Dangle Earrings in Platinum
Located in Sherman Oaks, CA
Beautiful Starburst Dangle Earrings Feature Four Bezel-Set Marquise Peridots surrounded by bezel of
Category

21st Century and Contemporary American Modern Dangle Earrings

Materials

Diamond, Peridot, Platinum

1 Carat Marquise Baguette Diamond Designer Ring 18 Karat Yellow Gold Jewelry
By Spectrum Jewels
Located in IN
Item Code :- CN-25519 Gross Wet. :- 4.02 gm 18k Yellow Gold Wet. :- 3.82 gm Diamond Wet. :- 1 Carat
Category

21st Century and Contemporary Indian Modern More Rings

Materials

Diamond, 18k Gold, Yellow Gold

1 Carat Marquise Diamond Cuff Bangle Bracelet 18 Karat Yellow Gold Fine Jewelry
Located in IN
Weight :- 1 Carat ( AVERAGE DIAMOND CLARITY SI1-SI2 & COLOR H-I ) Bangle Length :- 60 mm approx
Category

21st Century and Contemporary Indian Modern Cuff Bracelets

Materials

Diamond, 18k Gold, Yellow Gold

1 Carat Total Double Halo Marquise Diamond Engagement Ring, Two Tone
Located in Atlanta, GA
a Double Halo Two Tone Gold Setting 1 Carat Marquise in the center with an array of accent round
Category

2010s American Modern Engagement Rings

Materials

Diamond, 18k Gold

Marquise Aquamarine Sapphire Diamond Victorian Style Cocktail Ring in 18K Gold
Located in Bangkok, TH
Time to take center stage. This fabulously scintillating and dazzling icy blue 1 carat marquise
Category

21st Century and Contemporary Thai Art Deco Cocktail Rings

Materials

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

Natural Fancy Brown Mined 1 Carat Diamond Pendant Necklace 14k Marquise 1 Carat
Located in Dearborn, MI
Natural Fancy Brown Mined 1 Carat Diamond Pendant Necklace 14K Yellow Gold Marquise Cut Featuring
Category

2010s Pendant Necklaces

Materials

Diamond, 14k Gold, Yellow Gold

1 Carat GIA Light Blue Marquise Diamond Ring
Located in New York, NY
- 1.01 Carat GIA Light Blue Marquise - SI2 Clarity - .37 Carats Pear Pink (Side Stones) - .12
Category

2010s American Cocktail Rings

Materials

Diamond, Blue Diamond, Pink Diamond, Rose Gold, Platinum

Diamond Ear Climbers 1 1/4 Carat Marquise Cut in 14K Gold
Located in Rutherford, NJ
marquise diamonds in our trending graduating setting. Gold- 1.81 gms Diamond- 1.31 carats Diamond Colour
Category

2010s Indian Stud Earrings

Materials

Diamond, 14k Gold

1/2 Carat Marquise Diamond Studs in 14k Gold
Located in Rutherford, NJ
Gold- 0.91 gms Diamond- 0.46 carats Diamond Colour: G-H Diamond Clarity: SI Earring Weight: 1 gms
Category

21st Century and Contemporary Indian Stud Earrings

Materials

Diamond, 14k Gold, 18k Gold

1/4 Carat Marquise Cut Diamond Gold Coil Ring
Located in Rutherford, NJ
Gold- 3.03 gms Diamond- 0.23 carats Diamond Colour: G-H Diamond Clarity: SI Ring Weight: 3.08 gms
Category

21st Century and Contemporary Indian Band Rings

Materials

Diamond, Gold, 14k Gold, 18k Gold

1 Carat GIA Fancy Intense Orange-Yellow Marquise Diamond Ring
Located in New York, NY
Beautiful Marquise Orange diamond set in a delicate Platinum ring with 0.62ct of rounds The diamond
Category

2010s Fashion Rings

Materials

Yellow Diamond, Diamond, Platinum

14K White Gold 1 1/2 Carat Diamond Marquise Shape Solitaire Engagement Ring Set
Located in New York, NY
Celebrate your love with a 14K White Gold Marquise Shape Solitaire Diamond Bridal Ring Set for a
Category

21st Century and Contemporary Indian Contemporary Bridal Rings

Materials

Diamond, White Diamond, 14k Gold, White Gold

Diamond Ear Climbers 1 1/4 Carat Marquise Cut in 14K White Gold Certified
Located in Rutherford, NJ
marquise diamonds in our trending graduating setting. IGI CERTIFIED Gold- 1.81 gms Diamond- 1.31 carats
Category

2010s Indian Stud Earrings

Materials

Diamond, 14k Gold, White Gold

Platinum Rosalind Milgrain Marquise Diamond Ring '1/10 Carat'
Located in San Francisco, CA
This Petite ring designed in an antique look with round brilliant diamonds in a marquise-shaped
Category

21st Century and Contemporary American Band Rings

Materials

Diamond, Platinum

Platinum Donna Marquise Shape Diamond Ring '1/4 Carat'
Located in San Francisco, CA
This ring features three marquise-shaped clusters of round brilliant diamonds encompass the finger
Category

21st Century and Contemporary American Band Rings

Materials

Diamond, Platinum

14K Marquise Shape 1 carat tw Diamond Ring
Located in Big Bend, WI
14k white gold 1 carat tw diamond ring with vintage and antique diamonds set in a marquise shape
Category

Vintage 1940s Unknown Engagement Rings

Materials

Diamond, 14k Gold, White Gold

14K Yellow Gold 1 1/4 Carat Diamond Marquise Shaped Ring
Located in New York, NY
elegant design. It has a total diamond weight of 1 1/4 carats. 'Video Available Upon Request' Product
Category

21st Century and Contemporary Indian Contemporary Fashion Rings

Materials

Diamond, White Diamond, 14k Gold, Yellow Gold

1/10 Carat Marquise Diamond Ring Yellow Gold Brushed Satin Band Flush Set
By Five Star Jewelry
Located in Austin, TX
listed below: Metal Quality: 14k Yellow Gold Diamond Carat Weight: .10 Carat Weight Diamond Shape
Category

2010s American Modern Wedding Rings

Materials

Diamond, 14k Gold, Yellow Gold

18 Karat Yellow Gold Marquise Diamond Necklace '1/3 Carat'
Located in San Francisco, CA
) Marquise shape bars. Experience the difference! Product details: Center Gemstone Type: NATURAL DIAMOND
Category

21st Century and Contemporary American More Necklaces

Materials

Diamond, Yellow Gold

18 Karat Rose Gold Marquise Diamond Necklace '1/3 Carat'
Located in San Francisco, CA
) Marquise shape bars. Experience the difference! Product details: Center Gemstone Type: NATURAL DIAMOND
Category

21st Century and Contemporary American More Necklaces

Materials

Diamond, Rose Gold

18 Karat White Gold Marquise Diamond Necklace '1/3 Carat'
Located in San Francisco, CA
) Marquise shape bars. Experience the difference! Product details: Center Gemstone Type: NATURAL DIAMOND
Category

21st Century and Contemporary American More Necklaces

Materials

Diamond, White Gold

14K White Gold 1 1/4 Carat Diamond Marquise Shape Engagement Cocktail Ring
Located in New York, NY
. With a total carat weight of 1 1/4 cttw, you can't go wrong investing in this once-in-a-lifetime piece
Category

21st Century and Contemporary Indian Contemporary Bridal Rings

Materials

Diamond, White Diamond, 14k Gold, White Gold

14K Yellow Gold 1 1/2 Carat Diamond Marquise Shape Engagement Cocktail Ring Band
Located in New York, NY
Bold and striking, this 14k yellow gold ring is expertly set with a stunning 1 1/2 cttw of natural
Category

21st Century and Contemporary Indian Contemporary Fashion Rings

Materials

Diamond, White Diamond, Yellow Gold, 14k Gold

1.31 Carat Diamond Marquise Baguette Platinum Engagement Ring
Located in Stamford, CT
. 1 Ideal Marquise diamond, approx. total weight 1.31cts, H-I, SI1, 10.00 x 5.73 x 3.88mm, 2 baguette
Category

Vintage 1960s Engagement Rings

Materials

Diamond, Platinum

1 Carat Pear & Marquise Diamond Flower Ring 14 Karat White Gold Fine Jewelry
Located in IN
Diamond Wt. :- 1 Ct. ( AVERAGE DIAMOND CLARITY SI1-SI2 & COLOR H-I ) Ring Size :- 7 US & All size
Category

21st Century and Contemporary Indian Modern Cluster Rings

Materials

Diamond, 14k Gold, White Gold

1/2 Carat Natural Emerald Marquise Cut 8MM Stud Earrings in 14K Yellow Gold
By Gad & Co.
Located in Miami, FL
set of vivid green marquise-cut natural emeralds. With push back closure and a minimalist low basket
Category

2010s North American Modern Stud Earrings

Materials

Emerald, 14k Gold, Yellow Gold

.925 Sterling Silver 1/4 Carat Diamond Beaded Marquise Shape Link Bracelet
Located in New York, NY
This beaded marquise-shaped link bracelet exudes an irresistible retro allure. Crafted in .925
Category

21st Century and Contemporary Indian Modern Link Bracelets

Materials

Diamond, White Diamond, Sterling Silver

1 carat Round Moissanite & Marquise diamonds unique engagement Ring Penelope
Located in Hertsliya, IL
Beautiful 14K gold top-quality Natural Round brilliant and marquise cut side diamonds modern
Category

2010s Israeli Victorian Engagement Rings

Materials

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

14K Yellow Gold 1 ¼ Carat Princess, Baguette & Pie Diamond Marquise Shaped Ring
Located in New York, NY
design. It has a total diamond weight of 1 1/4 carats. Video Available Upon Request. Product Features
Category

21st Century and Contemporary Indian Contemporary Fashion Rings

Materials

Diamond, White Diamond, 14k Gold, Yellow Gold

14 Karat White Gold Donna Marquise Shape Diamond Ring '1/4 Carat'
Located in San Francisco, CA
This ring features three marquise-shaped clusters of round brilliant diamonds encompass the finger
Category

21st Century and Contemporary American Band Rings

Materials

Diamond, White Gold

18 Karat White Gold Donna Marquise Shape Diamond Ring '1/4 Carat'
Located in San Francisco, CA
This ring features three marquise-shaped clusters of round brilliant diamonds encompass the finger
Category

21st Century and Contemporary American Band Rings

Materials

Diamond, White Gold

18 Karat Rose Gold Donna Marquise Shape Diamond Ring '1/4 Carat'
Located in San Francisco, CA
This ring features three marquise-shaped clusters of round brilliant diamonds encompass the finger
Category

21st Century and Contemporary American Band Rings

Materials

Diamond, Rose Gold

18 Karat Yellow Gold Donna Marquise Shape Diamond Ring '1/4 Carat'
Located in San Francisco, CA
This ring features three marquise-shaped clusters of round brilliant diamonds encompass the finger
Category

21st Century and Contemporary American Band Rings

Materials

Diamond, Yellow Gold

14 Karat Rose Gold Donna Marquise Shape Diamond Ring '1/4 Carat'
Located in San Francisco, CA
This ring features three marquise-shaped clusters of round brilliant diamonds encompass the finger
Category

21st Century and Contemporary American Band Rings

Materials

Diamond, Rose Gold

14 Karat Yellow Gold Donna Marquise Shape Diamond Ring '1/4 Carat'
Located in San Francisco, CA
This ring features three marquise-shaped clusters of round brilliant diamonds encompass the finger
Category

21st Century and Contemporary American Band Rings

Materials

Diamond, Yellow Gold

14K White Gold 1/3 Carat Round Diamond Marquise Shaped Station Necklace
Located in New York, NY
diamonds that give this piece it's much larger marquise silhouette. The total 1/3 Cttw diamonds are of an
Category

21st Century and Contemporary Indian Contemporary Link Necklaces

Materials

Diamond, White Diamond, 14k Gold, White Gold

3.59 Carat Amethyst Marquise Diamond Gold Ring
By Diamond Stars Jewelry, Inc.
Located in New York, NY
3.59 Carats There are 0.16 Carats in Diamonds H/I VS2/SI1 The top of the ring measures a little over 1
Category

21st Century and Contemporary Hong Kong Modern Fashion Rings

Materials

Amethyst, Diamond, White Diamond, Gold, 14k Gold, Rose Gold

.925 Sterling Silver 1/2 Carat Diamond Marquise & Starburst Shaped Link Bracelet
Located in New York, NY
round diamonds cradled in prong settings, totaling 1/2 cttw with an approximate I-J Color and I2-I3
Category

21st Century and Contemporary Indian Modern Link Bracelets

Materials

Diamond, White Diamond, Sterling Silver

.45 Carat Marquise Diamond Platinum Three-Stone Engagement Ring
Located in Stamford, CT
side diamonds. EGL certified# US64833201D 1 Marquise diamond, approx. total weight .45ct, F, SI1
Category

21st Century and Contemporary Engagement Rings

Materials

Diamond, Platinum

.925 Sterling Silver 1/2 Carat Diamond Marquise & Starburst Shaped Link Bracelet
Located in New York, NY
round diamonds cradled in prong settings, totaling 1/2 cttw with an approximate I-J Color and I2-I3
Category

21st Century and Contemporary Indian Modern Link Bracelets

Materials

Diamond, White Diamond, Sterling Silver

7.96 Carat Marquise Heliodor Beryl Gold Pendant Necklace
Located in Stamford, CT
1.34ct marquise cut top stone set in 14k white gold. 16 inch white gold chain. 14k yellow gold bail. 1
Category

21st Century and Contemporary Pendant Necklaces

Materials

Beryl, 14k Gold, White Gold, Yellow Gold, Gold

Diamond Millgrain Ring Band, White Gold Round Marquise 1/5 Carat Diamond
By Five Star Jewelry
Located in Austin, TX
beautiful ring are listed below: Metal Quality: 14k White Gold Diamond Number: 13 Diamond Carat Weight: .19
Category

2010s American Modern Band Rings

Materials

Diamond, Gold, 14k Gold, White Gold

Natural Marquise 0.64 Carat Diamond Engagement Ring
Located in Fatih, 34
Gold, White Gold Gold GR: 2.07gr solid gold Diamond 1: 0.22ct Natural Round Diamond, Center : 0.40 Ct
Category

2010s European Engagement Rings

Materials

Diamond, 14k Gold

Ruby & Diamond Pendant W/ 1 Carat in Diamonds and Marquise Rubies
Located in Surfside, FL
Diamond and ruby star burst pendant in 18k white gold with 1 carat in round brilliant cut diamonds
Category

20th Century Pendant Necklaces

Peter Suchy 2.32 Carat Marquise Triple Diamond Platinum Dangle Earrings
By Peter Suchy
Located in Stamford, CT
. total weight .76cts, F – H – H, SI1 – SI3, EGL certificate # US314446402H 1 Marquise Diamond, approx
Category

21st Century and Contemporary Dangle Earrings

Materials

Diamond, Platinum

Emilio Jewelry GIA Certified 2.23 Carat Marquise Diamond Stud Earrings
By Emilio!
Located in New York, NY
1 GIA Certified Marquise Diamond, D Color, VS2, 0.50 Carats 1 GIA Certified Marquise Diamond, D
Category

21st Century and Contemporary Stud Earrings

Materials

Diamond, 18k Gold

0.5 Carat Marquise Diamond Yellow Gold Ring
By Nijma M Fine Jewelry
Located in Toronto, CA
& sustainable marquise-shaped white diamonds. Total carat weight: 0.5 Diamond clarity: SI 1/2 Diamond colour: GH
Category

2010s American Contemporary Band Rings

Materials

Diamond, Yellow Gold

0.5 Carat Marquise Diamond Yellow Gold Ring
By Nijma M Fine Jewelry
Located in Toronto, CA
& sustainable marquise-shaped white diamonds. Total carat weight: 0.5 Diamond clarity: SI 1/2 Diamond colour: GH
Category

2010s American Contemporary Band Rings

Materials

Diamond, Yellow Gold

0.5 Carat Marquise Diamond Yellow Gold Ring
By Nijma M Fine Jewelry
Located in Toronto, CA
& sustainable marquise-shaped white diamonds. Total carat weight: 0.5 Diamond clarity: SI 1/2 Diamond colour: GH
Category

2010s American Contemporary Band Rings

Materials

Diamond, Yellow Gold

1.15 Carat Marquise Sapphire Baguette Diamond Cocktail Ring
Located in Stamford, CT
accent diamonds in a 14k yellow gold setting. 1 marquise cut sapphire 1.15ct. 42 baguette diamonds
Category

Vintage 1960s Fashion Rings

Materials

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

Elegant 2.75 Carat Marquise Mixed Cut Tanzanite Ring
Located in רמת גן, IL
, adding a touch of glamour to the design. 1 tanzanite main stone of 2.75 carat cut: marquise mixed cut
Category

2010s Israeli Cocktail Rings

Materials

Tanzanite, Platinum

0.5 Carat Marquise Diamond Yellow Gold Ring
By Nijma M Fine Jewelry
Located in Toronto, CA
& sustainable marquise-shaped white diamonds. Total carat weight: 0.5 Diamond clarity: SI 1/2 Diamond colour: GH
Category

2010s American Contemporary Band Rings

Materials

Diamond, Yellow Gold

5.15 Carat Marquise Aqua Filigree White Gold Pendant Necklace
Located in Stamford, CT
Art Deco marquise shape natural untreated 5.15 Carat Aquamarine in a filigree pendant necklace
Category

Early 20th Century Necklace Enhancers

Materials

Aquamarine, Gold, 14k Gold, White Gold

1 carat Round & Marquise diamond modern and unique engagement ring Penelope
Located in Hertsliya, IL
Beautiful 14K gold top-quality Natural Round brilliant and marquise cut side diamonds modern
Category

2010s Israeli Victorian Engagement Rings

Materials

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

Peter Suchy .99 Carat Marquise Diamond Halo Platinum Engagement Ring
By Peter Suchy
Located in Stamford, CT
diamond shank with with an oval Halo of diamonds. GIA certificate # 6157172225 1 Ideal Marquise diamond
Category

21st Century and Contemporary Engagement Rings

Materials

Diamond, Platinum

1/2 Carat Pear & Marquise Diamond Twin Ring in 14k Gold
Located in Rutherford, NJ
Gold- 1.75 gms Diamond- 0.46 carats Diamond Colour: G-H Diamond Clarity: SI Ring Weight: 1.84 gms
Category

21st Century and Contemporary Indian Band Rings

Materials

Diamond, 14k Gold, 18k Gold

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1 Carat Marquise For Sale on 1stDibs

Find the exact 1 carat marquise you’re shopping for in the variety available on 1stDibs. Every item for sale was constructed with extraordinary care, often using Gold, 18k Gold and White Gold. Our collection of these items for sale includes 1097 vintage editions and 1695 modern creations to choose from as well. If you’re looking for a 1 carat marquise from a specific time period, our collection is diverse and broad-ranging, and you’ll find at least one that dates back to the 18th Century while another version may have been produced as recently as the 21st Century. For this particular accessory, there are many different carat weights to choose from, but .5 Carat and 1 Carat versions are of considerable interest. Creating a 1 carat marquise has been a part of the legacy of many jewelers, but those produced by LB Exclusive, Antinori Fine Jewels and Roman Malakov are consistently popular. See these pages for a marquise cut iteration of this accessory, while there are also round cut cut and pear cut cut versions available here, too. Finding a 1 carat marquise for sale for women should be easy, but there are 737 pieces available to browse for unisex as well as men, too.

How Much is a 1 Carat Marquise?

The price for a 1 carat marquise starts at $1 and tops out at $3,750,000 with these rings, on average, selling for $5,878.
Questions About 1 Carat Marquise
  • 1stDibs ExpertMarch 3, 2023
    Whether 1-carat is too big for earrings is largely a matter of personal opinion and preference. Some people may prefer to wear larger 1-carat earrings for formal evening events and other special occasions. However, others will wear 1-carat earrings to help punctuate any outfit. On 1stDibs, shop a variety of gemstone earrings.
  • 1stDibs ExpertFebruary 22, 2021
    Depending on the quality, age, and designer, a 1-carat diamond can cost between $1,300 and $16,500.
  • 1stDibs ExpertOctober 12, 2021
    What a 1-carat ruby is worth mostly depends on the color of the ruby. It is the most important factor in determining the ruby's value. The price of a pure brilliant red to slightly purple-red color is considerable. Depending on the color, purity, origin, and size, rubies can cost anywhere from $100 to $15,000 per carat. Shop a range of antique and vintage ruby jewelry on 1stDibs.
  • 1stDibs ExpertJanuary 23, 2024
    Whether a 1-carat earring is too big depends on your personal preferences. An individual earring with a 1-carat stone will usually cover a good portion of the earlobe without completely hiding it. As you shop for studs, keep in mind that there is a difference between total carat weight and carat weight. The carat weight refers to the weight of each earring, while the total carat weight is the combined weight of both earrings in a pair. A 1-carat earring set would actually typically include two 0.5-carat earrings, which are generally small enough to keep most of the earlobe visible. On 1stDibs, explore a large selection of gemstone earrings.
  • 1stDibs ExpertNovember 27, 2023
    Whether 1-carat studs are too big depends on your personal preferences. Stud earrings with a total weight of 1 carat will usually each feature a 0.5-carat gemstone, which is often the medium-sized offering from jewelry makers. At this size, studs will sit nicely on the earlobe without completely covering it. On 1stDibs, find a wide range of gemstone stud earrings.
  • 1stDibs ExpertApril 5, 2022
    The term 1-carat diamond earrings means a pair of earrings set with diamond gemstones that have a total weight of 200 milligrams. Depending on the design, each earring may hold one diamond or several smaller gems. You'll find a variety of diamond gemstone earrings on 1stDibs.
  • 1stDibs ExpertOctober 5, 2021
    What a 1-carat black diamond is worth varies according to the cut, type (natural/treated) and the demand and supply. Both natural and treated black diamonds increase in value as demand increases. It ranges from $100 to $3,000 per carat. On 1stDibs, you can find a variety of unique and designer black diamond jewelry & watches from different periods to choose from.
  • 1stDibs ExpertSeptember 28, 2021
    A 1-carat pink diamond’s worth depends on the color intensity and carat. High-quality pinks are the most expensive natural diamond color today. The price can vary from $10,000 to $70,000 per carat for an intense pink. On 1stDibs, you will find a variety of pink diamond jewelry from different periods.
  • 1stDibs ExpertOctober 19, 2021
    The average cost of a pair of diamond stud earrings with a total carat weight of 1-carat is $2,495. Depending on the clarity, cut and color of the diamond, the price and other details may vary. On 1sDibs, shop for antique and vintage diamond earrings.
  • 1stDibs ExpertMay 5, 2023
    How much a 1-carat natural sapphire is worth depends on its color, cut and quality. Sapphires can range in value from $25 to thousands of dollars per carat. A certified appraiser or knowledgeable jewelry expert can examine a particular gemstone piece and give you an estimate of its value. On 1stDibs, find a collection of sapphire gemstone jewelry.
  • 1stDibs ExpertFebruary 22, 2021
    The average cost of a pair of 1-carat diamond earrings is around $2,500. However, that price can change depending on the quality of the diamonds and the brand.
  • 1stDibs ExpertSeptember 28, 2021
    Like with most diamond products, the price of a 1-carat princess cut diamond can range dramatically. On 1stDibs, find 1-carat princess cut diamond rings, earrings, necklaces and bracelets starting at $999 to $16,500.