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Round|Natural|GIA

4.00ct I SI1 Round Natural Diamond

VG • I/SI1 • GIA 2504665069

Certificate GIA 2504665069

Diamond specifications and retailer prices

From £35,176 GBP
$47,132 USD
As of October 31, 2026
Save £19,119 GBP (35%) vs most expensive(unlock to see where)
6 retailers carry this diamond
Most expensive: £54,295 GBP at MOH London · As of November 1, 2026
View at MOH London

About this 4ct natural round diamond

This 4ct natural round sits in the three to five carat band, graded I colour (near-colourless) and SI1 clarity (slightly-included), with a very-good cut grade and certified by GIA 2504665069. Listed at 6 retailers as of October 31, 2026, with prices from £35,176 to £54,295, a £19,119 spread on the same certified stone. MOH London lists it at £54,295. 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

4.00
Carat
I
Colour
SI1
Clarity
Very Good
Cut

Specifications

CutVery Good
PolishExcellent
SymmetryVery Good
FluorescenceNone
Crown angle37.5°
Pavilion angle40.8°
OriginNatural
Grading LabGIA
CertificateGIA 2504665069
Dimensions9.77 × 9.90 × 6.35 mm
L/W Ratio1.01
Star length45%
Lower girdle75%
Top View
9.77 mm9.90 mm4.00 ctI / SI1
OriginNatural
CutVery Good
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateGIA 2504665069
Side View
Table 59.0%Crown 37.5°Girdle: STK-THKPavilion 40.8°Culet: NoneDepth 64.6%

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 31
Current: £54,295 GBP|Low: £31,197 GBP|High: £54,949 GBP|Avg: £39,683 GBP|-0.1%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
November 1, 2026
Retailer 3£35,176 GBP
Retailer 4£35,551 GBP
Retailer 5£36,213 GBP
Retailer 6£36,999 GBP
Retailer 2£41,293 GBP
MOH London£54,295 GBP

26 data points across 6 retailers

6 retailers£35,176 GBP to £54,295 GBP

B+
Cheapest Retailer
-
£35,176 GBP
$47,132 USD
Final sale: no returns
B+
Retailer 2
-
£35,551 GBP
$47,634 USD
View
B+
Retailer 3
-
£36,213 GBP
$48,522 USD
View
B+
Retailer 4
-
£36,999 GBP
$49,575 USD
View
B+
Retailer 5
-
£41,293 GBP
€52,694 EUR
View
Most Expensive
B
MOH London
027D95258 · Nov 1
£54,295 GBP
View
5 more retailers have this diamond
Prices start from £35,176 GBPSave up to £19,119 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+
4.00ct Round
£35,176 GBP