Skip to main content

42 Carats Diamonds

to
106
396
170
207
132
194
501
169
36
34
14
7
107
401
4
14
6
4
3
4
8
9
9
310
198
7
150
66
41
22
21
to
1
23
16
10
8
7
162
125
38
13
7
6
1
1
1
514
1
432
37
Sort By
Large Natural Amethyst Cocktail Ring Diamond Halo 5 Carats
Located in Punta Gorda, FL
Carats 42 Diamonds = 0.50 Carats Metal: Rhodium Plated Sterling Silver Ring Size: 7* US *It can be
Category

21st Century and Contemporary Contemporary Cocktail Rings

Materials

Amethyst, Diamond, White Diamond, Silver, Sterling Silver

Tanzanite Ring With Diamonds 2.94 Carats 14K White Gold
Located in Punta Gorda, FL
Carat 42 Diamonds = 0.34 Carats Metal: 14K White Gold Ring Size: 7* US *It can be resized complimentary
Category

21st Century and Contemporary Contemporary Cocktail Rings

Materials

Diamond, White Diamond, Tanzanite, Gold, 14k Gold, White Gold

GIA 1.81 carat Emerald and Diamond Halo Ring 18k White Gold
By Alexander Beverly Hills
Located in BEVERLY HILLS, CA
carat emerald cut emerald, F2, GIA certified. Complimented by 42 round brilliant diamonds, 0.33 carats
Category

21st Century and Contemporary American Contemporary Engagement Rings

Materials

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

Large Natural Amethyst Cocktail Ring Diamond Halo 5 Carats
Located in Punta Gorda, FL
Carats 42 Diamonds = 0.50 Carats Metal: Rhodium Plated Sterling Silver Ring Size: 7* US *It can be
Category

21st Century and Contemporary Contemporary Cocktail Rings

Materials

Amethyst, Diamond, White Diamond, Silver, Sterling Silver

Tanzanite Ring With Diamonds 2.94 Carats 14K White Gold
Located in Punta Gorda, FL
Carat 42 Diamonds = 0.34 Carats Metal: 14K White Gold Ring Size: 7* US *It can be resized complimentary
Category

21st Century and Contemporary Contemporary Cocktail Rings

Materials

Diamond, White Diamond, Tanzanite, Gold, 14k Gold, White Gold

Tanzanite Ring With Diamonds 2.94 Carats 14K White Gold
Located in Punta Gorda, FL
Carat 42 Diamonds = 0.34 Carats Metal: 14K White Gold Ring Size: 7* US *It can be resized complimentary
Category

21st Century and Contemporary Contemporary Cocktail Rings

Materials

Diamond, White Diamond, Tanzanite, Gold, 14k Gold, White Gold

Large Natural Amethyst Cocktail Ring Diamond Halo 5 Carats
Located in Punta Gorda, FL
Carats 42 Diamonds = 0.50 Carats Metal: Rhodium Plated Sterling Silver Ring Size: 7* US *It can be
Category

21st Century and Contemporary Contemporary Cocktail Rings

Materials

Amethyst, Diamond, White Diamond, Silver, Sterling Silver

Large Natural Amethyst Cocktail Ring Diamond Halo 5 Carats
Located in Punta Gorda, FL
Carats 42 Diamonds = 0.50 Carats Metal: Rhodium Plated Sterling Silver Ring Size: 7* US *It can be
Category

21st Century and Contemporary Contemporary Cocktail Rings

Materials

Amethyst, Diamond, White Diamond, Silver, Sterling Silver

GIA Certified Emerald Cut Diamond Tennis Bracelet 31 Carats Platinum
Located in Punta Gorda, FL
It comes with the GIA Certificate All diamonds are natural Total Carat Weight: 31 Carats Total
Category

21st Century and Contemporary Contemporary Tennis Bracelets

Materials

Diamond, White Diamond, Platinum

Large Natural Amethyst Cocktail Ring Diamond Halo 5 Carats
Located in Punta Gorda, FL
Carats 42 Diamonds = 0.50 Carats Metal: Rhodium Plated Sterling Silver Ring Size: 7* US *It can be
Category

21st Century and Contemporary Contemporary Cocktail Rings

Materials

Amethyst, Diamond, White Diamond, Silver, Sterling Silver

Tanzanite Ring With Diamonds 2.94 Carats 14K White Gold
Located in Punta Gorda, FL
Carat 42 Diamonds = 0.34 Carats Metal: 14K White Gold Ring Size: 7* US *It can be resized complimentary
Category

21st Century and Contemporary Contemporary Cocktail Rings

Materials

Tanzanite, White Diamond, Diamond, White Gold, 14k Gold, Gold

Large Natural Amethyst Cocktail Ring Diamond Halo 5 Carats
Located in Punta Gorda, FL
Carats 42 Diamonds = 0.50 Carats Metal: Rhodium Plated Sterling Silver Ring Size: 7* US *It can be
Category

21st Century and Contemporary Contemporary Cocktail Rings

Materials

Amethyst, Diamond, White Diamond, Silver, Sterling Silver

Tanzanite Ring With Diamonds 2.94 Carats 14K White Gold
Located in Punta Gorda, FL
Carat 42 Diamonds = 0.34 Carats Metal: 14K White Gold Ring Size: 7* US *It can be resized complimentary
Category

21st Century and Contemporary Contemporary Cocktail Rings

Materials

Diamond, White Diamond, Tanzanite, Gold, 14k Gold, White Gold

Tanzanite Ring With Diamonds 2.94 Carats 14K White Gold
Located in Punta Gorda, FL
Carat 42 Diamonds = 0.34 Carats Metal: 14K White Gold Ring Size: 7* US *It can be resized complimentary
Category

21st Century and Contemporary Contemporary Cocktail Rings

Materials

Diamond, White Diamond, Tanzanite, Gold, 14k Gold, White Gold

GIA Certified Emerald Cut Diamond Tennis Bracelet 31 Carats Platinum
Located in Punta Gorda, FL
It comes with the GIA Certificate All diamonds are natural Total Carat Weight: 31 Carats Total
Category

21st Century and Contemporary Contemporary Tennis Bracelets

Materials

Diamond, White Diamond, Platinum

Large Natural Amethyst Cocktail Ring Diamond Halo 5 Carats
Located in Punta Gorda, FL
Carats 42 Diamonds = 0.50 Carats Metal: Rhodium Plated Sterling Silver Ring Size: 7* US *It can be
Category

21st Century and Contemporary Contemporary Cocktail Rings

Materials

Amethyst, Diamond, White Diamond, Silver, Sterling Silver

Tanzanite Stud Earrings With Diamonds 3.82 Carats 14K Yellow Gold
Located in Punta Gorda, FL
Carats 42 Diamonds = 0.34 Carats Metal: 14K Yellow Gold Dimensions: 11 x 11 mm
Category

21st Century and Contemporary Contemporary Stud Earrings

Materials

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

Tanzanite Stud Earrings With Diamonds 3.82 Carats 14K White Gold
Located in Punta Gorda, FL
Carats 42 Diamonds = 0.34 Carats Metal: 14K White Gold Dimensions: 11 x 11 mm
Category

21st Century and Contemporary Contemporary Stud Earrings

Materials

Diamond, White Diamond, Tanzanite, Gold, 14k Gold, White Gold

Blue Sapphire Tennis Bracelet Diamonds 12.7 Carats 14K Yellow Gold
Located in Punta Gorda, FL
= 12.15 Carats 42 Diamonds = 0.60 Carats Metal: 14K Yellow Gold Length: 7 Inches *It can be shortened upon
Category

21st Century and Contemporary Contemporary Tennis Bracelets

Materials

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

Tanzanite Stud Earrings With Diamonds 3.82 Carats 14K Yellow Gold
Located in Punta Gorda, FL
Carats 42 Diamonds = 0.34 Carats Metal: 14K Yellow Gold Dimensions: 11 x 11 mm
Category

21st Century and Contemporary Contemporary Stud Earrings

Materials

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

Tanzanite Stud Earrings With Diamonds 3.82 Carats 14K White Gold
Located in Punta Gorda, FL
Carats 42 Diamonds = 0.34 Carats Metal: 14K White Gold Dimensions: 11 x 11 mm
Category

21st Century and Contemporary Contemporary Stud Earrings

Materials

Diamond, White Diamond, Tanzanite, Gold, 14k Gold, White Gold

Blue Sapphire Tennis Bracelet Diamonds 12.7 Carats 14K Yellow Gold
Located in Punta Gorda, FL
= 12.15 Carats 42 Diamonds = 0.60 Carats Metal: 14K Yellow Gold Length: 7 Inches *It can be shortened upon
Category

21st Century and Contemporary Contemporary Tennis Bracelets

Materials

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

Large Natural Amethyst Cocktail Ring Diamond Halo 5 Carats
Located in Punta Gorda, FL
Carats 42 Diamonds = 0.50 Carats Metal: Rhodium Plated Sterling Silver Ring Size: 7* US *It can be
Category

21st Century and Contemporary Contemporary Cocktail Rings

Materials

Amethyst, Diamond, White Diamond, Silver, Sterling Silver

Graduated Diamond Riviere Tennis Bracelet 6.92 Carats 14K White Gold
Located in Punta Gorda, FL
It comes with the Gemological Appraisal by GIA GG/AJP All Gemstones are Natural 42 Diamonds = 6.92
Category

21st Century and Contemporary Contemporary Tennis Bracelets

Materials

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

Princess Cut Diamond Tennis Bracelet 17 Carats 18K White Gold
Located in Punta Gorda, FL
It comes with the Gemological Appraisal by GIA GG/AJP All Gemstones are Natural 42 Diamonds = 17.00
Category

21st Century and Contemporary Contemporary Tennis Bracelets

Materials

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

Diamond Tennis Bracelet 10.2 Carats Asscher Cut 18K White Gold
Located in Punta Gorda, FL
It comes with the Gemological Appraisal by GIA GG/AJP All Gemstones are Natural 42 Diamonds = 10.24
Category

21st Century and Contemporary Contemporary Tennis Bracelets

Materials

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

5.25 Carat 3-Stone Yellow Diamond Ring 18 Karat White and Yellow Gold
Located in BEVERLY HILLS, CA
Y/Z yellow color and SI clarity. 42 round brilliant diamonds, 0.72 carats total. Approximately G/H
Category

2010s American Modern Three-Stone Rings

Materials

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

Tanzanite Stud Earrings With Diamonds 3.82 Carats 14K White Gold
Located in Punta Gorda, FL
Carats 42 Diamonds = 0.34 Carats Metal: 14K White Gold Dimensions: 11 x 11 mm
Category

21st Century and Contemporary Contemporary Stud Earrings

Materials

Diamond, White Diamond, Tanzanite, Gold, 14k Gold, White Gold

Tanzanite Stud Earrings With Diamonds 3.82 Carats 14K Yellow Gold
Located in Punta Gorda, FL
Carats 42 Diamonds = 0.34 Carats Metal: 14K Yellow Gold Dimensions: 11 x 11 mm
Category

21st Century and Contemporary Contemporary Stud Earrings

Materials

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

London Blue Topaz Dangle Earrings Diamonds 7.95 Carats Sterling Silver
Located in Punta Gorda, FL
Topazes = 7.78 Carats 42 Diamonds = 0.17 Carats Metal: Rhodium Plated Sterling Silver Dimensions: 28 x 11
Category

2010s Modern Dangle Earrings

Materials

Diamond, Topaz, Blue Topaz, Rhodium, Sterling Silver

Tanzanite Stud Earrings With Diamonds 3.82 Carats 14K Yellow Gold
Located in Punta Gorda, FL
Carats 42 Diamonds = 0.34 Carats Metal: 14K Yellow Gold Dimensions: 11 x 11 mm
Category

21st Century and Contemporary Contemporary Stud Earrings

Materials

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

Tanzanite Stud Earrings With Diamonds 3.82 Carats 14K White Gold
Located in Punta Gorda, FL
Carats 42 Diamonds = 0.34 Carats Metal: 14K White Gold Dimensions: 11 x 11 mm
Category

21st Century and Contemporary Contemporary Stud Earrings

Materials

Diamond, White Diamond, Tanzanite, Gold, 14k Gold, White Gold

London Blue Topaz Dangle Earrings Diamonds 7.95 Carats Sterling Silver
Located in Punta Gorda, FL
Topazes = 7.78 Carats 42 Diamonds = 0.17 Carats Metal: Rhodium Plated Sterling Silver Dimensions: 28 x 11
Category

2010s Modern Dangle Earrings

Materials

Diamond, Topaz, Blue Topaz, Rhodium, Sterling Silver

Tanzanite Stud Earrings With Diamonds 3.82 Carats 14K White Gold
Located in Punta Gorda, FL
Carats 42 Diamonds = 0.34 Carats Metal: 14K White Gold Dimensions: 11 x 11 mm
Category

21st Century and Contemporary Contemporary Stud Earrings

Materials

Diamond, White Diamond, Tanzanite, Gold, 14k Gold, White Gold

Tanzanite Stud Earrings With Diamonds 3.82 Carats 14K Yellow Gold
Located in Punta Gorda, FL
Carats 42 Diamonds = 0.34 Carats Metal: 14K Yellow Gold Dimensions: 11 x 11 mm
Category

21st Century and Contemporary Contemporary Stud Earrings

Materials

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

Tanzanite Ring With Diamonds 2.94 Carats 14K White Gold
Located in Punta Gorda, FL
Carat 42 Diamonds = 0.34 Carats Metal: 14K White Gold Ring Size: 7* US *It can be resized complimentary
Category

21st Century and Contemporary Contemporary Cocktail Rings

Materials

Diamond, White Diamond, Tanzanite, Gold, 14k Gold, White Gold

Graduated Diamond Riviere Tennis Bracelet 6.92 Carats 14K White Gold
Located in Punta Gorda, FL
It comes with the Gemological Appraisal by GIA GG/AJP All Gemstones are Natural 42 Diamonds = 6.92
Category

21st Century and Contemporary Contemporary Tennis Bracelets

Materials

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

Tanzanite Stud Earrings With Diamonds 3.82 Carats 14K White Gold
Located in Punta Gorda, FL
Carats 42 Diamonds = 0.34 Carats Metal: 14K White Gold Dimensions: 11 x 11 mm
Category

21st Century and Contemporary Contemporary Stud Earrings

Materials

Diamond, White Diamond, Tanzanite, Gold, 14k Gold, White Gold

Tanzanite Stud Earrings With Diamonds 3.82 Carats 14K Yellow Gold
Located in Punta Gorda, FL
Carats 42 Diamonds = 0.34 Carats Metal: 14K Yellow Gold Dimensions: 11 x 11 mm
Category

21st Century and Contemporary Contemporary Stud Earrings

Materials

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

London Blue Topaz Dangle Earrings Diamonds 7.95 Carats Sterling Silver
Located in Punta Gorda, FL
Topazes = 7.78 Carats 42 Diamonds = 0.17 Carats Metal: Rhodium Plated Sterling Silver Dimensions: 28 x 11
Category

2010s Modern Dangle Earrings

Materials

Diamond, Topaz, Blue Topaz, Rhodium, Sterling Silver

London Blue Topaz Dangle Earrings Diamonds 7.95 Carats Sterling Silver
Located in Punta Gorda, FL
Topazes = 7.78 Carats 42 Diamonds = 0.17 Carats Metal: Rhodium Plated Sterling Silver Dimensions: 28 x 11
Category

2010s Modern Dangle Earrings

Materials

Diamond, Topaz, Blue Topaz, Rhodium, Sterling Silver

Graduated Diamond Riviere Tennis Bracelet 6.92 Carats 14K White Gold
Located in Punta Gorda, FL
It comes with the Gemological Appraisal by GIA GG/AJP All Gemstones are Natural 42 Diamonds = 6.92
Category

21st Century and Contemporary Contemporary Tennis Bracelets

Materials

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

1.53 Carat Emerald Diamond 14 Karat Gold Ring
By Meghna Jewels
Located in Hoffman Estate, IL
emerald & .42 carats of sparkling diamonds. The ring is a size 7 and may be resized to larger or smaller
Category

21st Century and Contemporary Unknown Modern Engagement Rings

Materials

Diamond, Emerald, Gold, 14k Gold

Diamond Tennis Bracelet 10.2 Carats Asscher Cut 18K White Gold
Located in Punta Gorda, FL
It comes with the Gemological Appraisal by GIA GG/AJP All Gemstones are Natural 42 Diamonds = 10.24
Category

21st Century and Contemporary Contemporary Tennis Bracelets

Materials

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

Princess Cut Diamond Tennis Bracelet 17 Carats 18K White Gold
Located in Punta Gorda, FL
It comes with the Gemological Appraisal by GIA GG/AJP All Gemstones are Natural 42 Diamonds = 17.00
Category

21st Century and Contemporary Contemporary Tennis Bracelets

Materials

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

London Blue Topaz Dangle Earrings Diamonds 7.95 Carats Sterling Silver
Located in Punta Gorda, FL
Topazes = 7.78 Carats 42 Diamonds = 0.17 Carats Metal: Rhodium Plated Sterling Silver Dimensions: 28 x 11
Category

2010s Modern Dangle Earrings

Materials

Diamond, Topaz, Blue Topaz, Rhodium, Sterling Silver

Tanzanite Stud Earrings With Diamonds 3.82 Carats 14K White Gold
Located in Punta Gorda, FL
Carats 42 Diamonds = 0.34 Carats Metal: 14K White Gold Dimensions: 11 x 11 mm
Category

21st Century and Contemporary Contemporary Stud Earrings

Materials

Diamond, White Diamond, Tanzanite, Gold, 14k Gold, White Gold

Tanzanite Stud Earrings With Diamonds 3.82 Carats 14K Yellow Gold
Located in Punta Gorda, FL
Carats 42 Diamonds = 0.34 Carats Metal: 14K Yellow Gold Dimensions: 11 x 11 mm
Category

21st Century and Contemporary Contemporary Stud Earrings

Materials

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

10.71 Carats Carved Jade 14 Karat Gold Diamond Earrings
By Meghna Jewels
Located in Hoffman Estate, IL
Jade, 1.81 carats onyx and .42 carats of sparkling diamonds. FOLLOW MEGHNA JEWELS storefront to view
Category

21st Century and Contemporary Unknown Art Deco Dangle Earrings

Materials

Diamond, Jade, Onyx, Gold, Yellow Gold, 14k Gold

Graduated Diamond Riviere Tennis Bracelet 6.92 Carats 14K White Gold
Located in Punta Gorda, FL
It comes with the Gemological Appraisal by GIA GG/AJP All Gemstones are Natural 42 Diamonds = 6.92
Category

21st Century and Contemporary Contemporary Tennis Bracelets

Materials

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

London Blue Topaz Dangle Earrings Diamonds 7.95 Carats Sterling Silver
Located in Punta Gorda, FL
Topazes = 7.78 Carats 42 Diamonds = 0.17 Carats Metal: Rhodium Plated Sterling Silver Dimensions: 28 x 11
Category

2010s Modern Dangle Earrings

Materials

Diamond, Topaz, Blue Topaz, Rhodium, Sterling Silver

Tanzanite Stud Earrings With Diamonds 3.82 Carats 14K Yellow Gold
Located in Punta Gorda, FL
Carats 42 Diamonds = 0.34 Carats Metal: 14K Yellow Gold Dimensions: 11 x 11 mm
Category

21st Century and Contemporary Contemporary Stud Earrings

Materials

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

Tanzanite Stud Earrings With Diamonds 3.82 Carats 14K White Gold
Located in Punta Gorda, FL
Carats 42 Diamonds = 0.34 Carats Metal: 14K White Gold Dimensions: 11 x 11 mm
Category

21st Century and Contemporary Contemporary Stud Earrings

Materials

Diamond, White Diamond, Tanzanite, Gold, 14k Gold, White Gold

London Blue Topaz Dangle Earrings Diamonds 7.95 Carats Sterling Silver
Located in Punta Gorda, FL
Topazes = 7.78 Carats 42 Diamonds = 0.17 Carats Metal: Rhodium Plated Sterling Silver Dimensions: 28 x 11
Category

2010s Modern Dangle Earrings

Materials

Diamond, Topaz, Blue Topaz, Rhodium, Sterling Silver

London Blue Topaz Dangle Earrings Diamonds 7.95 Carats Sterling Silver
Located in Punta Gorda, FL
Topazes = 7.78 Carats 42 Diamonds = 0.17 Carats Metal: Rhodium Plated Sterling Silver Dimensions: 28 x 11
Category

2010s Modern Dangle Earrings

Materials

Diamond, Topaz, Blue Topaz, Rhodium, Sterling Silver

Graduated Diamond Riviere Tennis Bracelet 6.92 Carats 14K White Gold
Located in Punta Gorda, FL
It comes with the Gemological Appraisal by GIA GG/AJP All Gemstones are Natural 42 Diamonds = 6.92
Category

21st Century and Contemporary Contemporary Tennis Bracelets

Materials

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

Princess Cut Diamond Tennis Bracelet 17 Carats 18K White Gold
Located in Punta Gorda, FL
It comes with the Gemological Appraisal by GIA GG/AJP All Gemstones are Natural 42 Diamonds = 17.00
Category

21st Century and Contemporary Contemporary Tennis Bracelets

Materials

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

  • 1
Get Updated with New Arrivals
Save "42 Carats Diamonds", and we’ll notify you when there are new listings in this category.

42 Carats Diamonds For Sale on 1stDibs

On 1stDibs, there are many options to choose from in our inventory of 42 carats diamonds. All of the items for sale were constructed with extraordinary care, often using Gold, 18k Gold and White Gold. Find a collection of 227 vintage versions or 440 modern creations for a more contemporary example of these cherished accessories. Our inventory is broad and distinctive, with accessories on offer that were made as long ago as the 19th Century to those produced as recently as the 21st Century. Pieces in our collection of 42 carats diamonds made by Contemporary jewelers — as well as those associated with Modern — are very popular. Versions of these items have been a part of the life’s work for many jewelers, but those produced by LB Exclusive, Alberto and Tiffany Co. are consistently popular. Lovers of these pieces agree that it’s a versatile accessory, but a selection from our variety of 513 Diamond versions can add an especially stylish touch. Today, if you’re looking for round cut 42 carats diamonds and are unable to find the perfect match, our selection also includes oval cut and cushion cut alternatives. If you’re browsing the variety of 42 carats 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 42 Carats Diamonds?

On average, 42 carats diamonds at 1stDibs sell for $5,058, while they’re typically $440 on the low end and $1,995,000 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.  

Questions About 42 Carats Diamonds
  • 1stDibs ExpertMarch 22, 2022
    A 24-carat diamond is a precious diamond gemstone that weighs 24 carats. One carat weighs 200 milligrams, meaning a 24-carat diamond weighs roughly 4.8 grams. That equates to roughly 0.17 ounces. On 1stDibs, shop a variety of diamond jewelry.
  • 1stDibs ExpertApril 5, 2022
    Yes, there are three-carat diamonds, and you can find them from a number of different jewelers and other retailers. Find an assortment of diamond jewelry from the world’s top sellers on 1stDibs.
  • 1stDibs ExpertNovember 6, 2023
    There is no hard-and-fast rule for how many carats a diamond necklace should be. On average, solitaire diamond necklaces range from 0.5 to 1 carat, but you can find pieces with larger and smaller stones. Tennis chains that feature continuous diamonds set into links usually have much higher total carat weights. For example, one might feature 60 individual diamonds, each 0.20 carats in size, for a total carat weight of 12.0 carats. Shop a wide range of diamond necklaces on 1stDibs.
  • 1stDibs ExpertApril 5, 2022
    A nine-carat diamond is considered rare and holds a premium price. Because of their rarity and size, nine-carat diamonds are a coveted choice for engagement rings. One of the most famous nine-carat diamond rings belongs to actress Kate Hudson, who has a nine-carat emerald cut diamond complemented with tapered baguettes on a platinum band. Shop a selection of diamond jewelry on 1stDibs.
  • 1stDibs ExpertSeptember 28, 2021
    An 8-carat diamond’s worth varies depending on the 4Cs of diamond quality – color, cut, clarity and carat. On an average an 8-carat diamond could cost you between $17,500 to $90,000. It is also likely that the price range per carat will be even broader. On 1stDibs, you can find a variety of 8-carat diamond jewelry from different periods and styles to choose from.
  • 1stDibs ExpertSeptember 28, 2021
    A 4-carat diamond’s worth varies depending on the 4Cs of diamond quality – color, cut, clarity and carat. On average, a 4-carat diamond could cost you between $8,400 to $71,500. It is also likely that the price range per carat will be even broader. On 1stDibs, you can find a variety of 4-carat diamond jewelry.
  • 1stDibs ExpertSeptember 28, 2021
    A 6-carat diamond’s worth varies depending on the 4Cs of diamond quality – color, cut, clarity and carat. On average, a 6-carat diamond could cost you between $15,000 to $80,000. It is also likely that the price range per carat will be even broader. On 1stDibs, you can find a variety of 6-carat diamond jewelry.
  • 1stDibs ExpertSeptember 28, 2021
    A 5-carat diamond’s worth varies depending on the 4Cs of diamond quality – color, cut, clarity and carat. On average, a 5-carat diamond could cost you between $9,600 to $67,500. It is also likely that the price range per carat will be even broader. On 1stDibs, you can find a variety of 5-carat diamond jewelry.
  • 1stDibs ExpertSeptember 28, 2021
    The minimum value of a 25-carat diamond ranges from $300 to $1,400. The prices change subject to the fluctuation of market factors. The value is defined based on the 4Cs — color, clarity, cut and carat weight. Shop antique, vintage and new diamond jewelry on 1stDibs.
  • 1stDibs ExpertFebruary 27, 2024
    Whether a 1.5-carat diamond is too big depends on the type of jewelry in question and your personal preferences. A single stud earring that is 1.5 carats is rather large and would cover the entire earlobe. In terms of rings, a 1.5-carat diamond is larger than average. Find a variety of diamond jewelry on 1stDibs.
  • 1stDibs ExpertFebruary 13, 2023
    Yes, a two-carat diamond is generally rarer than a smaller diamond, especially high-quality two-carat diamonds. When larger diamonds are found in nature, they usually have flaws. And prices per carat don’t increase as weight increases. 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. Shop an assortment of diamond jewelry from some of the world’s top jewelers on 1stDibs.
  • 1stDibs ExpertAugust 17, 2021
    A 7-carat diamond can cost anywhere between $12,000 and $185,000 depending on the quality of the stone. The fewer imperfections, the more expensive the diamond. Some 7-carat diamonds can cost more than $400,000.
  • 1stDibs ExpertSeptember 28, 2021
    A 9-carat diamond’s worth varies depending on the 4Cs of diamond quality — color, cut, clarity and carat. On average, a 9-carat diamond could cost you between $19,000 to $1,000,000. It is also likely that the price range per carat will be even broader. On 1stDibs, you can find a variety of 9-carat diamond jewelry from different periods and styles to choose from.
  • 1stDibs ExpertSeptember 28, 2021
    A 3-carat diamond’s worth varies depending on the 4Cs of diamond quality – color, cut, clarity and carat. On average, a 3-carat diamond could cost you between $7,200 to $51,000. It is also likely that the price range per carat will be even broader. On 1stDibs, you can find a variety of 3-carat diamond jewelry today.
  • 1stDibs ExpertFebruary 22, 2021
    Depending on the quality, age, and designer, a 1-carat diamond can cost between $1,300 and $16,500.
  • 1stDibs ExpertFebruary 27, 2024
    In terms of dimensions, how large a 3-carat diamond is varies. The shape of the diamond will determine its length and width. Weighing 600 milligrams, diamonds that are 3 carats are generally considered to be large stones. On 1stDibs, shop a large collection of diamond jewelry from some of the world's top dealers.
  • 1stDibs ExpertFebruary 22, 2021
    The size of a 12 carat diamond is dependent on diamond cut. A 12 carat round diamond is roughly 15 mm in size.
  • 1stDibs ExpertAugust 24, 2021
    A 2 carat oval diamond is approximately 10.23mm × 6.82mm × 4.16mm in size. These diamonds usually have an approximate face-up area of 57.21 mm². Find a variety of diamonds on 1stDibs.
  • 1stDibs ExpertNovember 2, 2023
    There is no rule for how many carats a diamond wedding ring should be. You're free to choose a ring with a carat weight that appeals to you and fits your budget. The average carat weight for diamond wedding rings is 1 to 1.9 carats. Shop an assortment of diamond wedding rings on 1stDibs.
  • 1stDibs ExpertAugust 17, 2021
    A 7-carat diamond can cost anywhere between $12,000 and $185,000 depending on the quality of the stone. The fewer imperfections, the more expensive the diamond. Some 7-carat diamonds can cost more than $400,000.