Skip to main content

2 Carat Total Weight Diamond Stud

101
to
503
1,760
342
2,182
1,034
382
150
109
79
63
40
36
30
29
27
25
21
19
15
13
8
7
6
5
3
2
2
2
1
88
56
54
46
39
Sort By
2 Carat Total Diamond Weight Good Princess Cut Studs
Located in New York, NY
2 Carat Total Diamond Weight Good Princess Cut Studs Indulge in luxury with these good princess cut
Category

21st Century and Contemporary North American Stud Earrings

Materials

Diamond, 14k Gold

1/2 Carat Total Diamond Weight Princess Cut Studs
Located in New York, NY
1/2 Carat Total Diamond Weight Princess Cut Studs Radiate elegance with these princess cut studs
Category

21st Century and Contemporary North American Stud Earrings

Diamond Bezel Stud Earrings 1/2 carat total weight 14k solid gold
Located in New York, NY
Metal Weight: 3 - 4 grams Total Diamond Weight: 0.50 ct Average Diamond Clarity: SI or higher Average
Category

2010s American Modern Stud Earrings

Materials

Diamond, Gold

Diamond Bezel Stud Earrings 1/2 carat total weight 14k solid gold
Diamond Bezel Stud Earrings 1/2 carat total weight 14k solid gold
1 bid
Free Shipping
W 0.21 in D 0.12 in L 0.21 in
Natural Diamond Studs, Floral, 8 Prongs, 1/2 carat total weight, 14K Solid Gold
Located in New York, NY
: 4 - 7 grams Total Diamond Weight: 0.50 ct Average Diamond Clarity: SI or higher Average Diamond
Category

2010s American Modern Stud Earrings

Materials

Diamond, Gold

4.15 Carat 'Total Weight' Sapphire and Diamond Halo Stud Earrings
Located in Palm Beach, FL
4.15 Carat (total weight) Sapphire and Diamond Halo Stud Earrings in 18K White Gold. Diamond halos
Category

21st Century and Contemporary Stud Earrings

Materials

Diamond, Sapphire, 18k Gold, White Gold

GIA Report Certified 3.19 Carat Total Weight Diamond Stud Earrings
Located in Coral Gables, FL
. The 2 round brilliant cut GIA graded diamonds are 1.57 carat SI1 clarity with G color, and 1.62 carat
Category

2010s American Contemporary Stud Earrings

Materials

Diamond, 14k Gold, White Gold

2.00 Carat Total Weight Diamond Stud Earrings in 14k White Gold
Located in Chicago, IL
Stunning 14 Karat white gold handmade earrings featuring 2 round brilliant cut diamonds weighing
Category

2010s Contemporary Stud Earrings

Materials

White Diamond, Diamond, 14k Gold, White Gold

1.00 Carat Total Weight Diamond Stud Earrings in 14k White Gold
Located in Chicago, IL
Stunning 14 Karat white gold handmade earrings featuring 2 round brilliant cut diamonds weighing
Category

2010s American Contemporary Stud Earrings

Materials

White Diamond, Diamond, 14k Gold, White Gold

1.50 Carat Total Weight Diamond Stud Earrings in 14k White Gold
Located in Chicago, IL
Stunning 14 Karat white gold handmade earrings featuring 2 round brilliant cut diamonds weighing
Category

2010s American Contemporary Stud Earrings

Materials

White Diamond, Diamond, 14k Gold, White Gold

1.75 Carat Total Weight 14 Karat Gold Diamond Studs with Diamond Jackets
By Gregory Mikaelian & Sons, Inc.
Located in Los Angeles, CA
14k white gold 1.23ct.s diamonds stud earrings, containing 2 brilliant cut diamonds; color "F-G
Category

21st Century and Contemporary American Contemporary Stud Earrings

Materials

Diamond, Gold, 14k Gold

GIA 3.00 Carat Total Weight Natural Round Diamond Studs J-VS1/J-VS2 in Platinum
Located in La Jolla, CA
GIA 3.00 Carat Total Weight Natural Round Diamond Studs J-VS1/J-VS2 in Platinum Diamond Stud
Category

21st Century and Contemporary North American Stud Earrings

Materials

Diamond, Platinum

14k Gold Diamond Stud Earrings with Diamond Halo-Jackets Total Weight 2.71 Carat
By Gregory Mikaelian & Sons, Inc.
Located in Los Angeles, CA
14k white gold diamond stud earrings with diamond halo-jackets, containing 2 brilliant cut diamonds
Category

21st Century and Contemporary American Contemporary Stud Earrings

Materials

Diamond, 14k Gold, White Gold

0.25 Carat Total Weight Diamond Four Prong Stud Earrings in 14k White Gold
Located in Chicago, IL
Stunning 14 Karat white gold handmade earrings featuring 2 round brilliant cut diamonds weighing
Category

2010s American Contemporary Stud Earrings

Materials

Diamond, White Diamond, White Gold, 14k Gold

0.50 Carat Total Weight Diamond Four Prong Stud Earrings in 14k White Gold
Located in Chicago, IL
Stunning 14 Karat white gold handmade earrings featuring 2 round brilliant cut diamonds weighing
Category

2010s American Contemporary Stud Earrings

Materials

White Diamond, Diamond, 14k Gold, White Gold

0.75 Carat Total Weight Diamond Four Prong Stud Earrings in 14k White Gold
Located in Chicago, IL
Stunning 14 Karat white gold handmade earrings featuring 2 round brilliant cut diamonds weighing
Category

2010s American Contemporary Stud Earrings

Materials

White Diamond, Diamond, 14k Gold, White Gold

0.33 Carat Total Weight Diamond Four Prong Stud Earrings in 14k White Gold
Located in Chicago, IL
Stunning 14 Karat white gold handmade earrings featuring 2 round brilliant cut diamonds weighing
Category

2010s American Contemporary Stud Earrings

Materials

Diamond, White Diamond, 14k Gold, White Gold

Oval Diamonds .50 Carats Stud Pair in 14K White Gold 1/2 Carat Total Lv
By Five Star Jewelry
Located in Austin, TX
Diamond Number: 2 Diamond Total Weight: 0.54 Carats Diamond Clarity: VS to SI (excellent, eye clean
Category

21st Century and Contemporary American Modern Stud Earrings

Materials

Diamond, 14k Gold, White Gold

Oval Diamonds .50 Carats Stud Pair in 14K Yellow Gold 1/2 Carat Total Lv
By Five Star Jewelry
Located in Austin, TX
3.7 mm Post Type: Friction post and friction back Diamond Number: 2 Diamond Total Weight: 0.51 Carats
Category

21st Century and Contemporary American Modern Stud Earrings

Materials

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

2 Carat DTW Diamond Stud Earrings
Located in Montgomery, AL
These contemporary style diamond earrings feature approximately 2 carats of diamonds; combined
Category

21st Century and Contemporary Contemporary Stud Earrings

Materials

White Diamond, Gold, 14k Gold, White Gold

Roman Malakov 0.80 Carat Total Round Diamond Stud Earrings
By Roman Malakov
Located in New York, NY
A timeless stud earring design to compliment any style. Showcasing 2 round brilliant diamonds
Category

21st Century and Contemporary American Contemporary Stud Earrings

Materials

Diamond, Platinum

Roman Malakov 1.17 Carat Total Round Diamond Stud Earrings
By Roman Malakov
Located in New York, NY
A timeless stud earring design to compliment any style. Showcasing 2 round brilliant diamonds
Category

21st Century and Contemporary American Contemporary Stud Earrings

Materials

Diamond, 14k Gold, White Gold

1/2 Carat DTW Diamond Stud Earrings
Located in Montgomery, AL
These contemporary style diamond earrings feature approximately 0.50 carats of diamonds; combined
Category

21st Century and Contemporary Contemporary Stud Earrings

Materials

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

Gorgeous Diamond Cluster Studs totalling 2 carats set in 18k Yellow Gold
Located in Miami, FL
: VS Total Carat Weight: approx 2 cts Total Item Weight (g): 2.2 Approximate Diameter: 6.57 mm
Category

21st Century and Contemporary Stud Earrings

Materials

Diamond, 18k Gold, Yellow Gold

1 & 1/2 Carat DTW Diamond Stud Earrings
Located in Montgomery, AL
These contemporary style diamond earrings feature approximately 1.50 carats of diamonds; combined
Category

21st Century and Contemporary Contemporary Stud Earrings

Materials

White Diamond, Gold, 14k Gold, White Gold

Roman Malakov 2.03 Carats Total Cushion Cut Diamond Halo Stud Earrings
By Roman Malakov
Located in New York, NY
A simple and classy stud earrings featuring 2 cushion cut diamonds weighing 2.03 carats total, J
Category

21st Century and Contemporary American Contemporary Stud Earrings

Materials

Diamond, 18k Gold, White Gold

10K Yellow Gold 1/2 Carat Diamond Stud Earrings
Located in New York, NY
design crafted in 10 karat yellow gold. They have a total diamond weight of 1/2 carat. These diamonds are
Category

21st Century and Contemporary Indian Modern Stud Earrings

Materials

Diamond, White Diamond, 10k Gold, Yellow Gold

10K Yellow Gold 1/2 Carat Diamond Stud Earrings
10K Yellow Gold 1/2 Carat Diamond Stud Earrings
Free Shipping
H 0.12 in W 0.36 in L 0.36 in
Roman Malakov 0.65 Carats Total Two Cushion Cut Diamond Halo Stud Earrings
By Roman Malakov
Located in New York, NY
This simple but elegant diamond stud earrings showcase 2 cushion cut diamond weighing 0.65 carat
Category

21st Century and Contemporary American Modern Stud Earrings

Materials

Diamond, Platinum

Roman Malakov GIA Certified 14.22 Carat Total Emerald Cut Diamond Stud Earrings
By Roman Malakov
Located in New York, NY
These earrings feature 2 GIA Certified emerald-cut diamonds weighing 7.01 carat and 7.21 carat. The
Category

21st Century and Contemporary American Stud Earrings

Materials

Diamond, Platinum

Oval Diamond Studs, 1/2 Carats TW, 14K Solid Gold, Everyday Studs, Pushback
Located in New York, NY
: 1.2 - 2 grams Total Diamond Weight: 0.50 Average Diamond Clarity: SI or higher Average Diamond Colour
Category

2010s American Modern Stud Earrings

Materials

Diamond, Gold

Asscher Cut Diamond Studs, 1/2 Carats TW, 14K Solid Gold, Everyday Studs
Located in New York, NY
Total Diamond Weight: 0.50ctw Average Diamond Clarity: SI or higher Average Diamond Colour: Near
Category

2010s American Modern Stud Earrings

Materials

Diamond, Gold

Emerald Diamond Studs, 1/2 Carats TW, 14K Solid Gold, Everyday Studs, Pushback
Located in New York, NY
inbox message. Metal Weight: 1.2 - 2 grams Total Diamond Weight: 0.50 Average Diamond Clarity: SI or
Category

2010s American Modern Stud Earrings

Materials

Diamond, Gold

Roman Malakov 1.02 Carat Total Round Diamond Stud Earrings in White Gold
By Roman Malakov
Located in New York, NY
diamonds weighing 1.02 carats total, G color and SI2 clarity. Set in 14K White Gold with screw backs
Category

21st Century and Contemporary American Contemporary Stud Earrings

Materials

Diamond, 14k Gold, White Gold

Diamond Illusion Stud Earrings in White Gold, 1.16 Carat Total
By Sarosi By Timeless Gems
Located in Los Angeles, CA
comprised of a single princess cut diamond framed by 4 marquise cut diamonds. While the total carat weight
Category

21st Century and Contemporary American Artisan Stud Earrings

Materials

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

Diamond Floral Cluster Studs, 4.5-5mm 14K Yellow Gold 1/4 Carat Total
By Five Star Jewelry
Located in Austin, TX
studs are the same size as 1/2 carat studs, made affordable by the petite floral cluster of diamonds
Category

2010s American Contemporary Stud Earrings

Materials

Diamond, 14k Gold, Yellow Gold

Diamond Floral Cluster Studs, 14K White Gold, 4.5-5mm, 1/4 Carat Total
By Five Star Jewelry
Located in Austin, TX
studs are the same size as 1/2 carat studs, made affordable by the petite floral cluster of diamonds
Category

2010s American Contemporary Stud Earrings

Materials

Diamond, 14k Gold, White Gold

Roman Malakov 0.73 Carats Total Round Diamond & White Pearl Flower Stud Earrings
By Roman Malakov
Located in New York, NY
floral-motif diamond surmount.Total weight of diamonds 0.73 carats. Perfectly made in 18k white gold
Category

21st Century and Contemporary American Contemporary Stud Earrings

Materials

Diamond, Pearl, Cultured Pearl, 18k Gold, White Gold

Roman Malakov 1.07 Carats Total Radiant Cut Fancy Yellow Diamond Stud Earrings
By Roman Malakov
Located in New York, NY
Features a versatile yellow diamond stud earrings showcasing 2 elongated radiant cut diamonds
Category

21st Century and Contemporary American Contemporary Stud Earrings

Materials

Yellow Diamond, 18k Gold, Yellow Gold

Roman Malakov 1.33 Carats Total Round Blue Sapphire and Diamond Stud Earrings
By Roman Malakov
Located in New York, NY
A chic and unique stud earrings showcasing 2 brilliant round blue sapphires weighing 1.33 carats
Category

21st Century and Contemporary American Contemporary Stud Earrings

Materials

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

David Rosenberg 4.02 Total Carat Round E/VVS2 Triple Excellent GIA Diamond Studs
By David Rosenberg
Located in Boca Raton, FL
Rosenberg Diamonds & Co. 4.02 total carat weight E color VVS2 clarity triple excellent GIA
Category

21st Century and Contemporary American Modern Stud Earrings

Materials

Diamond, White Diamond, 18k Gold, White Gold

David Rosenberg 5.42 Total Carats Round F/VS2 Triple Excellent GIA Diamond Studs
By David Rosenberg
Located in Boca Raton, FL
Rosenberg Diamonds & Co. 5.42 total carat weight F color VS2 clarity triple excellent GIA Certified
Category

21st Century and Contemporary American Modern Stud Earrings

Materials

Diamond, White Diamond, 18k Gold, White Gold

10K White Gold 1/2 Carat Diamond Flower Stud Earring
Located in New York, NY
10k white gold and it features 108 round-cut genuine diamonds in a prong setting. The total diamond
Category

21st Century and Contemporary Indian Contemporary Stud Earrings

Materials

Diamond, White Diamond, 10k Gold, White Gold

10K White Gold 1/2 Carat Diamond Flower Stud Earring
10K White Gold 1/2 Carat Diamond Flower Stud Earring
Free Shipping
H 0.12 in W 0.4 in L 0.4 in
10K White Gold 1/2 Carat Diamond Flower Stud Earring
Located in New York, NY
10k white gold and it features 108 round-cut genuine diamonds in a prong setting. The total diamond
Category

21st Century and Contemporary Indian Contemporary Stud Earrings

Materials

Diamond, White Diamond, 10k Gold, White Gold

10K White Gold 1/2 Carat Diamond Flower Stud Earring
10K White Gold 1/2 Carat Diamond Flower Stud Earring
Free Shipping
H 0.12 in W 0.4 in L 0.4 in
1.65 ct Total Weight Natural Old European Cut Diamond Dangle/Drop Earrings
By Antinori Fine Jewels
Located in Rome, IT
1.65 ct Total Weight Natural Old European Cut Diamond Dangle/Drop Earrings 14k White Gold. The
Category

2010s Italian Modern Stud Earrings

Materials

Diamond, White Diamond, 14k Gold

.925 Sterling Silver 1/2 Carat Brilliant Solitaire Diamond Stud Earrings
Located in New York, NY
total weight for this diamond stud pair is 1/2 cttw. "Video Available Upon Request"
Category

21st Century and Contemporary Indian Modern Stud Earrings

Materials

Diamond, White Diamond, Sterling Silver

.925 Sterling Silver 1/2 Carat Princess-Cut Diamond Stud Earrings
Located in New York, NY
stones, and smaller round-cut diamonds line the inner edges of these earrings. These 1/2 cttw studs are
Category

21st Century and Contemporary Indian Contemporary Stud Earrings

Materials

Diamond, White Diamond, Sterling Silver

14k White Gold 1/2 Carat Diamond Floral Cluster Stud Earrings
Located in New York, NY
has a 1/4 cttw diamond and the total weight for this diamond stud pair is 1/2 cttw. "Video Available
Category

21st Century and Contemporary Indian Modern Stud Earrings

Materials

Diamond, White Diamond, 14k Gold, White Gold

14k White Gold 1/2 Carat Diamond Floral Cluster Stud Earrings
14k White Gold 1/2 Carat Diamond Floral Cluster Stud Earrings
Free Shipping
H 0.12 in W 0.24 in L 0.24 in
14K White Gold 1/2 Carat Trillion Shaped Diamond Stud Earrings
Located in New York, NY
total weight for this diamond stud pair is 0.5 cttw. Video available upon request!
Category

21st Century and Contemporary Indian Stud Earrings

Materials

Diamond, White Diamond, 14k Gold, White Gold

10K Rose Gold 1/2 Carat Princess Diamond Composite Stud Earring
Located in New York, NY
total diamond weight of 1/2 carats. 'Video Available Upon Request.' Product Features: Diamond Type
Category

21st Century and Contemporary Indian Contemporary Stud Earrings

Materials

Diamond, White Diamond, 10k Gold, Rose Gold

14K White Gold 1 1/2 Carat Solitaire Diamond Stud Earrings
Located in New York, NY
cttw diamond and the total weight for this diamond stud pair is 1.5 cttw. 'Video Available Upon
Category

21st Century and Contemporary American Modern Stud Earrings

Materials

Diamond, White Diamond, 14k Gold, White Gold

14K White Gold 1 1/2 Carat Solitaire Diamond Stud Earrings
14K White Gold 1 1/2 Carat Solitaire Diamond Stud Earrings
Free Shipping
H 0.6 in W 0.24 in L 0.24 in
14K White Gold 1/2 Carat Double Diamond Dangle Stud Earrings
Located in New York, NY
with a push back. Each earring piece has a 1/4 cttw diamond and the total weight for this diamond stud
Category

21st Century and Contemporary Indian Contemporary Stud Earrings

Materials

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

14K White Gold 1/2 Carat Double Diamond Dangle Stud Earrings
14K White Gold 1/2 Carat Double Diamond Dangle Stud Earrings
Free Shipping
H 0.2 in W 0.32 in L 0.67 in
Sterling Silver 1/2 Carat Treated Blue Diamond Solitaire Milgrain Stud Earrings
Located in New York, NY
with treated, blue round-cut diamonds in a prong setting. The total diamond weight is 1/2 cttw, and is
Category

21st Century and Contemporary Indian Contemporary Stud Earrings

Materials

Diamond, Blue Diamond, Sterling Silver

18K Yellow Gold 1 1/2 Carat Diamond Solitaire Stud Earrings
Located in New York, NY
has a 3/4 cttw diamond and the total weight for this diamond stud pair is 1.5 cttw. 'Video Available
Category

21st Century and Contemporary Indian Modern Stud Earrings

Materials

Diamond, White Diamond, 18k Gold, Yellow Gold

10K Yellow Gold 1/2 Carat Diamond Cluster Cocktail Stud Earrings
Located in New York, NY
surrounded by a baguette diamond halo. These 10k yellow gold stud earrings are the perfect complement for any
Category

21st Century and Contemporary Indian Contemporary Stud Earrings

Materials

Diamond, White Diamond, Yellow Gold, 10k Gold

.925 Sterling Silver 1/2 Carat Treated Black Diamond Milgrain Stud Earrings
Located in New York, NY
with treated, black round-cut diamonds in a prong setting. The total diamond weight is 1/2 cttw, and is
Category

21st Century and Contemporary Indian Contemporary Stud Earrings

Materials

Diamond, Black Diamond, Sterling Silver

.925 Sterling Silver 1/2 Carat Miracle Set Diamond Solitaire Stud Earrings
Located in New York, NY
carat weight of 1/2 ct. The earrings fasten securely with a push back mechanism. You will love how these
Category

21st Century and Contemporary Indian Contemporary Stud Earrings

Materials

Diamond, White Diamond, Sterling Silver

.925 Sterling Silver 1/2 Carat Miracle Set Diamond Solitaire Stud Earrings
Located in New York, NY
carat weight of 1/2 ct. The earrings fasten securely with a push back mechanism. You will love how these
Category

21st Century and Contemporary Indian Contemporary Stud Earrings

Materials

Diamond, White Diamond, Sterling Silver

.925 Sterling Silver 1/2 Carat Diamond Miligrain Square Shape Stud Earrings
Located in New York, NY
diamonds. These gorgeous studs have a total diamond weight of 1/2 cttw and will dress up any outfit in your
Category

21st Century and Contemporary Indian Contemporary Stud Earrings

Materials

Diamond, White Diamond, Sterling Silver

.925 Sterling Silver 1 1/2 Carat Blue Diamond Solitaire Stud Earrings
Located in New York, NY
shape diamonds for a 1 1/2 carat total weight - how much impact would you like? These sparkling
Category

21st Century and Contemporary Indian Contemporary Stud Earrings

Materials

Diamond, Blue Diamond, Sterling Silver

.925 Sterling Silver 1 1/2 Carat Diamond Solitaire Milgrain Stud Earrings
Located in New York, NY
diamonds in a 1 1/2 Carat diamond total weight. These sparkling solitaire style diamonds are placed in the
Category

21st Century and Contemporary Indian Modern Stud Earrings

Materials

Diamond, White Diamond, Sterling Silver

IGI Certified 14K Yellow Gold 1/2 Carat Solitaire Diamond Stud Earrings
Located in New York, NY
. With a total diamond weight of 1/2 carat, these gems radiate a subtle yet enchanting sparkle. The L-M
Category

21st Century and Contemporary Indian Modern Stud Earrings

Materials

Diamond, White Diamond, 14k Gold, Yellow Gold

  • 1
  • ...
Get Updated with New Arrivals
Save "2 Carat Total Weight Diamond Stud", and we’ll notify you when there are new listings in this category.

2 Carat Total Weight Diamond Stud For Sale on 1stDibs

On 1stDibs, you can find the most appropriate 2 carat total weight diamond stud for your needs in our varied inventory. Every item for sale was constructed with extraordinary care, often using Gold, White Gold and 14k Gold. In our selection of items, you can find a vintage example as well as a contemporary version. Finding the perfect 2 carat total weight diamond stud may mean sifting through those created during different time periods — you can find an early version that dates to the 20th Century and a newer variation that were made as recently as the 21st Century. There have been many well-made iterations of the classic 2 carat total weight diamond stud over the years, but those made by Roman Malakov, Beyond Fine Jewelry and Gregory Mikaelian & Sons, Inc. are often thought to be among the most beautiful. See these pages for a round cut iteration of this accessory, while there are also cushion cut cut and oval cut cut versions available here, too. When shopping for a 2 carat total weight diamond stud, you’ll find that there are less available pieces for unisex or men today than there are for women.

How Much is a 2 Carat Total Weight Diamond Stud?

Prices for a 2 carat total weight diamond stud can differ depending upon size, time period and other attributes — at 1stDibs, these accessories begin at $170 and can go as high as $535,000, while this accessory, on average, fetches $5,925.

Finding the Right stud-earrings for You

Stud earrings have a unique and rich cultural history. Though their design has evolved, vintage stud earrings are still a classic jewelry style.

Stud earrings are frequently dated back over 7,000 years to Asia, where they were worn mostly by upper-class men to indicate their wealth and status. Although earrings sometimes fell out of favor over the years — such as when ear piercing was prohibited by the Catholic Church in the 13th century — they’ve remained one of the most enduring forms of body modification.

When diamond jewelry gained prominence in the 19th century, thanks to prosperity in Europe and the United States as well as the greater accessibility of gemstones, studs adorned with fine diamonds became popular. Screw-back earrings debuted in the late 19th century and allowed people without pierced ears to don the embellishment. Stud earrings became especially popular in the 1960s.

Stud earrings are simple and usually small in size, making them lightweight and easy to wear. Unlike other earrings, stud earrings have a floating appearance. They are often made with a single gemstone, such as a sapphire or emerald, and a straight post that goes through the ear, typically with a rubber or metal backing to hold it in place.

Today, stud earrings accentuate outfits with a casual, elegant style, adding a bit of glam to any ensemble. Find an eclectic array of stud earrings on 1stDibs.

Questions About 2 Carat Total Weight Diamond Stud
  • 1stDibs ExpertNovember 1, 2023
    Whether two-carat diamond studs are too big is a matter of personal preference. At this size, each earring will be one carat. If you opt for the classic round brilliant cut, the studs will typically measure around 6.5 millimeters in diameter, which is a little more than half the size of a dime. Find a wide range of diamond stud earrings on 1stDibs.