Round|Natural|GIA

3.00ct H SI1 Round Natural Diamond

VG • H/SI1

Diamond specifications and retailer prices

From £17,987 GBP
$24,100 USD
As of October 26, 2026
Save £6,424 GBP (26%) vs most expensive(unlock to see where)
17 retailers carry this diamond
Most expensive: £24,411 GBP at The Diamond Guys · As of October 31, 2026
View at The Diamond Guys

About this 3ct natural round diamond

This 3ct natural round sits in the three to five carat band, graded H colour (near-colourless) and SI1 clarity (slightly-included), with a very-good cut grade and certified by GIA. Listed at 17 retailers as of October 26, 2026, with prices from £17,987 to £24,411, a £6,424 spread on the same certified stone. The Diamond Guys lists it at £24,411. Cut grade matters more than carat or clarity for visible brilliance. If you can shift budget toward an Excellent or Ideal cut, do it before chasing higher colour or clarity.

The 4Cs

3.00
Carat
H
Colour
SI1
Clarity
Very Good
Cut

Specifications

CutVery Good
PolishGood
SymmetryVery Good
FluorescenceNone
OriginNatural
Grading LabGIA
Dimensions9.14 × 9.25 × 5.66 mm
L/W Ratio1.01
Top View
9.14 mm9.25 mm3.00 ctH / SI1
OriginNatural
CutVery Good
PolishGood
SymmetryVery Good
FluorescenceNone
CertificateGIA
Side View
Table 65.0%CrownGirdle: Slightly ThickPavilionCulet: NoneDepth 61.6%

Caratlytics Score

How it works →
B+
Very Good
Strong quality and value balance
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Oct 26
Current: £22,237 GBP|Low: £16,785 GBP|High: £24,411 GBP|Avg: £20,998 GBP|+0.3%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
The Diamond Guys
November 1, 2026
Retailer 9£16,785 GBP
Retailer 3£18,175 GBP
Retailer 2£19,685 GBP
Retailer 4£20,017 GBP
Retailer 7£20,851 GBP
Retailer 5£21,018 GBP
Retailer 6£21,685 GBP
Retailer 10£21,885 GBP
Retailer 1£22,237 GBP
Retailer 8£22,519 GBP
The Diamond Guys£24,411 GBP

22 data points across 11 retailers

17 retailers£17,987 GBP to £24,411 GBP

Retailer 1
-
£16,785 GBP
$22,490 USD
Price last confirmed 14 days ago
B+
Retailer 2
-
£17,987 GBP
$24,100 USD
View
B+
Retailer 3
-
£18,175 GBP
$24,352 USD
View
B+
Retailer 4
-
£19,685 GBP
CA$36,632 CAD
View
B+
Retailer 5
-
£20,017 GBP
$26,820 USD
View
Retailer 6
-
£20,851 GBP
$27,938 USD
View
Price last confirmed 48 days ago
B+
Retailer 7
-
£20,851 GBP
$27,938 USD
View
B+
Retailer 8
-
£21,018 GBP
$28,162 USD
View
Retailer 9
-
£21,685 GBP
$29,056 USD
View
Price last confirmed 50 days ago
Retailer 10
-
£21,685 GBP
$29,056 USD
View
Price last confirmed 48 days ago
B+
Retailer 11
-
£21,685 GBP
$29,056 USD
View
B+
Retailer 12
-
£21,885 GBP
$29,324 USD
View
B+
Retailer 13
-
£22,237 GBP
View
Retailer 14
-
£22,519 GBP
$30,173 USD
View
Price last confirmed 47 days ago
B
Retailer 15
-
£22,519 GBP
$30,173 USD
View
Retailer 16
-
£22,519 GBP
$30,173 USD
View
Price last confirmed 51 days ago
Most Expensive
B
The Diamond Guys
1979273854 · Oct 31
£24,411 GBP
$32,708 USD
View
16 more retailers have this diamond
Prices start from £17,987 GBPSave up to £6,424 GBP

Carat Hunter is not affiliated with, endorsed by, or sponsored by any retailer listed. Retailer information is from publicly available sources and may not be current. Verify details directly with the retailer before purchasing. Return terms as we hold them. Check the retailer's own returns page before you buy.

B+
3.00ct Round
£17,987 GBP