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Round|Natural|GIA

4.00ct I SI1 Round Natural Diamond

EX • I/SI1 • GIA 6233698330

Certificate GIA 6233698330

Diamond specifications and retailer prices

From £38,319 GBP
As of November 1, 2026
Save £18,386 GBP (32%) vs most expensive(unlock to see where)
6 retailers carry this diamond
Most expensive: £56,704 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 top-tier cut grade and certified by GIA 6233698330. Listed at 6 retailers as of November 1, 2026, with prices from £38,319 to £56,704, a £18,386 spread on the same certified stone. MOH London lists it at £56,704. SI-grade stones are eye-clean roughly 60 to 70% of the time at this carat range. Check the inclusion plot on the cert and ask the retailer for high-resolution video before buying.

The 4Cs

4.00
Carat
I
Colour
SI1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryVery Good
FluorescenceFaint
Crown angle36°
Pavilion angle40.6°
OriginNatural
Grading LabGIA
CertificateGIA 6233698330
Dimensions10.01 × 10.10 × 6.32 mm
L/W Ratio1.01
Top View
10.01 mm10.10 mm4.00 ctI / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryVery Good
FluorescenceFaint
CertificateGIA 6233698330
Side View
Table 57.0%Crown 36°GirdlePavilion 40.6°CuletDepth 62.8%

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: Nov 1
Current: £56,704 GBP|Low: £38,319 GBP|High: £57,009 GBP|Avg: £43,213 GBP|-0.1%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
November 1, 2026
Retailer 2£38,319 GBP
Retailer 9£38,615 GBP
Retailer 5£38,805 GBP
Retailer 6£39,251 GBP
Retailer 8£39,580 GBP
Retailer 3£43,417 GBP
Retailer 10£45,289 GBP
Retailer 7£45,379 GBP
Retailer 4£50,332 GBP
MOH London£56,704 GBP

27 data points across 10 retailers

6 retailers£38,319 GBP to £56,704 GBP

B+
Cheapest Retailer
-
£38,319 GBP
B+
Retailer 2
-
£38,805 GBP
$51,995 USD
View
B+
Retailer 3
-
£39,251 GBP
$52,592 USD
View
B+
Retailer 4
-
£43,417 GBP
$58,174 USD
View
B
Retailer 5
-
£50,332 GBP
$67,440 USD
View
Most Expensive
B
MOH London
BF7B1D073 · Nov 1
£56,704 GBP
View
5 more retailers have this diamond
Prices start from £38,319 GBPSave up to £18,386 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
£38,319 GBP