3 Carat Loose Diamonds

Loose 3 Carat Diamonds

Compare 3 carat diamond prices for engagement rings or loose diamonds. Save up to 40%* on your purchase by shopping with AI price and quality scores.

Money-back
guarantee
GIA certified
diamonds
#1 on
Trustpilot
Free insured
shipping

Shop diamonds by shape

Round cut lab diamondsRound
Oval cut lab diamondsOval
Cushion cut man made diamondsCushion
Emerald cut lab created diamondsEmerald
Princess cut lab created diamondsPrincess
Marquise cut lab diamondsMarquise
Shop all diamond shapes
299 diamonds found
3.01ct J SI2 Excellent Cut Round Diamond
Lowest Price
3.01 Carat · J · SI2
Excellent Cut
$10,150
Comp. value: $14,295
17/18 quality
3.04ct K SI2 Excellent Cut Round Diamond
3.04 Carat · K · SI2
Excellent Cut
$16,310
Comp. value: $22,970
17/18 quality
3.00ct K SI2 Excellent Cut Round Diamond
3.00 Carat · K · SI2
Excellent Cut
$18,645
Comp. value: $26,255
17/18 quality
3.00ct J SI2 Rare Carat Ideal Cut Round Diamond
3.00 Carat · J · SI2
Rare Carat Ideal Cut
$19,500
Comp. value: $27,460
18/18 quality
3.39ct K SI1 Rare Carat Ideal Cut Round Diamond
3.39 Carat · K · SI1
Rare Carat Ideal Cut
$20,005
Comp. value: $28,175
18/18 quality
3.01ct K SI2 Excellent Cut Round Diamond
3.01 Carat · K · SI2
Excellent Cut
$20,085
Comp. value: $28,285
17/18 quality
3.01ct J SI2 Very Good Cut Round Diamond
3.01 Carat · J · SI2
Very Good Cut
$20,115
Comp. value: $28,330
14/18 quality
3.00ct J VS1 Excellent Cut Round Diamond
3.00 Carat · J · VS1
Excellent Cut
$20,455
Comp. value: $28,810
17/18 quality
3.08ct J SI2 Good Cut Round Diamond
3.08 Carat · J · SI2
Good Cut
$20,565
Comp. value: $28,965
15/18 quality
3.00ct K SI2 Rare Carat Ideal Cut Round Diamond
3.00 Carat · K · SI2
Rare Carat Ideal Cut
$20,960
Comp. value: $29,515
18/18 quality
3.00ct K SI1 Rare Carat Ideal Cut Round Diamond
3.00 Carat · K · SI1
Rare Carat Ideal Cut
$21,495
Comp. value: $30,270
18/18 quality
3.05ct K SI1 Rare Carat Ideal Cut Round Diamond
3.05 Carat · K · SI1
Rare Carat Ideal Cut
$21,840
Comp. value: $30,755
17/18 quality
3.39ct K SI1 Rare Carat Ideal Cut Round Diamond
3.39 Carat · K · SI1
Rare Carat Ideal Cut
$22,945
Comp. value: $32,315
18/18 quality
3.02ct J SI2 Rare Carat Ideal Cut Round Diamond
3.02 Carat · J · SI2
Rare Carat Ideal Cut
$23,435
Comp. value: $33,005
18/18 quality
3.00ct J SI1 Very Good Cut Round Diamond
3.00 Carat · J · SI1
Very Good Cut
$23,515
Comp. value: $33,115
12/17 quality
3.00ct G SI2 Excellent Cut Round Diamond
3.00 Carat · G · SI2
Excellent Cut
$23,815
Comp. value: $33,540
16/18 quality
3.08ct J VS2 Rare Carat Ideal Cut Round Diamond
3.08 Carat · J · VS2
Rare Carat Ideal Cut
$23,920
Comp. value: $33,690
18/18 quality
3.14ct J SI2 Very Good Cut Round Diamond
3.14 Carat · J · SI2
Very Good Cut
$24,050
Comp. value: $33,870
14/17 quality
3.00ct J SI1 Rare Carat Ideal Cut Round Diamond
3.00 Carat · J · SI1
Rare Carat Ideal Cut
$24,275
Comp. value: $34,190
17/18 quality
3.01ct I SI2 Excellent Cut Round Diamond
3.01 Carat · I · SI2
Excellent Cut
$24,285
Comp. value: $34,200
16/18 quality
3.01ct G SI2 Rare Carat Ideal Cut Round Diamond
3.01 Carat · G · SI2
Rare Carat Ideal Cut
$24,380
Comp. value: $34,335
17/18 quality
3.03ct G SI1 Very Good Cut Round Diamond
3.03 Carat · G · SI1
Very Good Cut
$24,425
Comp. value: $34,400
15/18 quality
3.01ct J SI1 Rare Carat Ideal Cut Round Diamond
3.01 Carat · J · SI1
Rare Carat Ideal Cut
$24,460
Comp. value: $34,445
18/18 quality
3.03ct K VS1 Very Good Cut Round Diamond
3.03 Carat · K · VS1
Very Good Cut
$24,515
Comp. value: $34,525
14/18 quality
3.00ct J SI2 Rare Carat Ideal Cut Round Diamond
3.00 Carat · J · SI2
Rare Carat Ideal Cut
$24,630
Comp. value: $34,685
18/18 quality
3.00ct J VS1 Rare Carat Ideal Cut Round Diamond
3.00 Carat · J · VS1
Rare Carat Ideal Cut
$24,630
Comp. value: $34,685
18/18 quality
3.00ct J VS1 Rare Carat Ideal Cut Round Diamond
3.00 Carat · J · VS1
Rare Carat Ideal Cut
$24,630
Comp. value: $34,685
18/18 quality
3.80ct J SI2 Rare Carat Ideal Cut Round Diamond
3.80 Carat · J · SI2
Rare Carat Ideal Cut
$24,685
Comp. value: $34,765
18/18 quality
3.18ct K VS2 Rare Carat Ideal Cut Round Diamond
3.18 Carat · K · VS2
Rare Carat Ideal Cut
$24,725
Comp. value: $34,820
18/19 quality
3.02ct J VS1 Very Good Cut Round Diamond
3.02 Carat · J · VS1
Very Good Cut
$24,790
Comp. value: $34,910
15/18 quality
3.42ct K VS1 Rare Carat Ideal Cut Round Diamond
3.42 Carat · K · VS1
Rare Carat Ideal Cut
$24,935
Comp. value: $35,115
18/18 quality
3.00ct H SI1 Good Cut Round Diamond
3.00 Carat · H · SI1
Good Cut
$25,065
Comp. value: $35,300
14/18 quality
3.03ct J SI1 Rare Carat Ideal Cut Round Diamond
3.03 Carat · J · SI1
Rare Carat Ideal Cut
$25,205
Comp. value: $35,495
18/18 quality
4.02ct H SI2 Rare Carat Ideal Cut Round Diamond
4.02 Carat · H · SI2
Rare Carat Ideal Cut
$25,810
Comp. value: $35,845
18/18 quality
3.01ct J SI1 Rare Carat Ideal Cut Round Diamond
3.01 Carat · J · SI1
Rare Carat Ideal Cut
$25,895
Comp. value: $36,470
17/18 quality
3.01ct G SI2 Excellent Cut Round Diamond
3.01 Carat · G · SI2
Excellent Cut
$26,025
Comp. value: $36,650
16/18 quality
3.02ct J SI1 Rare Carat Ideal Cut Round Diamond
3.02 Carat · J · SI1
Rare Carat Ideal Cut
$26,195
Comp. value: $36,895
17/18 quality
3.51ct G SI2 Excellent Cut Round Diamond
3.51 Carat · G · SI2
Excellent Cut
$26,250
Comp. value: $36,970
17/18 quality
3.15ct J SI2 Excellent Cut Round Diamond
3.15 Carat · J · SI2
Excellent Cut
$26,335
Comp. value: $37,090
16/17 quality
3.03ct J SI2 Rare Carat Ideal Cut Round Diamond
3.03 Carat · J · SI2
Rare Carat Ideal Cut
$26,600
Comp. value: $37,465
18/18 quality
3.53ct K SI1 Good Cut Round Diamond
3.53 Carat · K · SI1
Good Cut
$26,635
Comp. value: $37,510
14/18 quality
3.01ct K VS1 Rare Carat Ideal Cut Round Diamond
3.01 Carat · K · VS1
Rare Carat Ideal Cut
$26,865
Comp. value: $37,835
18/18 quality
3.22ct G SI2 Good Cut Round Diamond
3.22 Carat · G · SI2
Good Cut
$27,080
Comp. value: $38,135
15/18 quality
3.01ct E SI2 Very Good Cut Round Diamond
3.01 Carat · E · SI2
Very Good Cut
$27,315
Comp. value: $38,470
15/18 quality
3.02ct J VS1 Very Good Cut Round Diamond
3.02 Carat · J · VS1
Very Good Cut
$27,515
Comp. value: $38,750
17/18 quality
3.10ct I SI1 Rare Carat Ideal Cut Round Diamond
3.10 Carat · I · SI1
Rare Carat Ideal Cut
$27,690
Comp. value: $38,995
16/17 quality
3.01ct E SI2 Rare Carat Ideal Cut Round Diamond
3.01 Carat · E · SI2
Rare Carat Ideal Cut
$27,825
Comp. value: $39,185
18/18 quality
3.56ct K SI1 Rare Carat Ideal Cut Round Diamond
3.56 Carat · K · SI1
Rare Carat Ideal Cut
$28,025
Comp. value: $39,470
18/18 quality
Compare millions of diamonds
to find the best deal

Browse our full catalogue of 3 Carat Loose Diamonds

3 Carat Diamonds


Explore 3-carat diamonds and compare them side by side by origin, color, clarity, and shape. Use the diamond search filters to dial in your preferred specs, grading lab, and budget, then open each diamond’s images, video, and certificate to compare real stones. You can keep a loose 3 carat diamond for later or pair it with a ring setting to build a complete engagement ring in your style.


How Much Does a 3 Carat Diamond Cost?


For 2.90–3.09 ct loose diamonds, the median listed price is $26,875 for natural and $2,655 for lab-grown 3ct diamonds, with a median price per carat of $8,899 for natural and $896 for lab-grown. These medians sit between natural listings starting at $11,880 and lab-grown options starting at $1,450, with higher prices driven mainly by color, clarity, and individual stone quality at this carat band. But at Rare Carat, you can find K color SI1 3 carat natural diamond pricing starting at $10,000. So you can expect to spend somewhere between $11,000 to $20,000 for a good 3ct diamond with the settings.

FAQ about 3 Carat Natural Diamonds

How much is a 3 carat loose diamond worth?

A 3 carat diamond value is going to largely depend on the 4C’s of said stone and the shape. A round diamond will always be the most expensive because it’s the most sought after shape and creates the most waste when being cut and polished from the rough. For the cut grade, don’t settle for anything less than Excellent. The light performance will suffer. For the other C’s, the higher the grade, the more expensive the diamond is going to be. Currently, an Excellent cut round brilliant natural 3 carat diamond is going to cost approximately $21,000 on the low end (K/SI2) and $170,000 on the high end (D/FL).
Explore more diamond and ring options

Popular Diamond Shapes

See more

Popular Ring Styles

See more

Popular Diamond Sizes

See more
Get $100 off
Stay up to date with exclusive deals, price alerts, gemologist tips, and more!
Minimum purchase required.
By signing up you agree to our Terms.