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Round|Natural|GIA

4.00ct I SI1 Round Natural Diamond

EX • I/SI1 • GIA 5231250367

Certificate GIA 5231250367

Diamond specifications and retailer prices

From £44,498 GBP
$59,622 USD
As of November 1, 2026
Save £32,186 GBP (42%) vs most expensive(unlock to see where)
13 retailers carry this diamond
Most expensive: £76,684 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 5231250367. Listed at 13 retailers as of November 1, 2026, with prices from £44,498 to £76,684, a £32,186 spread on the same certified stone. MOH London lists it at £76,684. 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
FluorescenceNone
Crown angle34°
Pavilion angle40.6°
OriginNatural
Grading LabGIA
CertificateGIA 5231250367
Dimensions10.24 × 10.17 × 6.16 mm
L/W Ratio1.01
Star length50%
Lower girdle75%
Top View
10.24 mm10.17 mm4.00 ctI / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateGIA 5231250367
Side View
Table 59.0%Crown 34°Girdle: MED-STKPavilion 40.6°Culet: NoneDepth 60.4%

Caratlytics Score

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

Price History

Last verified: Nov 1
Current: £76,684 GBP|Low: £44,498 GBP|High: £77,608 GBP|Avg: £56,390 GBP|-0.1%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
November 2, 2026
Retailer 5£44,498 GBP
Retailer 7£46,578 GBP
Retailer 6£47,496 GBP
Retailer 2£48,813 GBP
Retailer 3£59,313 GBP
Retailer 4£61,531 GBP
MOH London£76,684 GBP

41 data points across 7 retailers

13 retailers£44,498 GBP to £76,684 GBP

B+
Cheapest Retailer
-
£44,498 GBP
$59,622 USD
Retailer 2
-
£46,578 GBP
A$96,015 AUD
View
Price last confirmed 28 days ago
B
Retailer 3
-
£47,496 GBP
$63,640 USD
View
B+
Retailer 4
-
£48,813 GBP
View
B
Retailer 5
-
£49,101 GBP
$65,790 USD
View
B
Retailer 6
-
£49,806 GBP
$66,734 USD
View
B
Retailer 7
-
£51,147 GBP
$68,531 USD
View
B
Retailer 8
-
£51,147 GBP
$68,531 USD
View
B
Retailer 9
-
£53,192 GBP
$71,272 USD
View
B
Retailer 10
-
£55,239 GBP
$74,014 USD
View
B
Retailer 11
-
£59,313 GBP
€75,688 EUR
View
B
Retailer 12
-
£61,531 GBP
ZAR 1,331,913 ZAR
View
Most Expensive
B
MOH London
A7ECBE6E4 · Nov 1
£76,684 GBP
View
12 more retailers have this diamond
Prices start from £44,498 GBPSave up to £32,186 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
£44,498 GBP