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Round|Natural|GIA

4.01ct G SI1 Round Natural Diamond

EX • G/SI1 • GIA 1528881482

Certificate GIA 1528881482

Diamond specifications and retailer prices

From £40,227 GBP
$53,900 USD
As of October 25, 2026
Save £32,381 GBP (45%) vs most expensive(unlock to see where)
10 retailers carry this diamond
Most expensive: £72,608 GBP at MOH London · As of October 29, 2026
View at MOH London

About this 4.01ct natural round diamond

This 4.01ct natural round sits in the three to five carat band, graded G colour (near-colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by GIA 1528881482. Listed at 10 retailers as of October 25, 2026, with prices from £40,227 to £72,608, a £32,381 spread on the same certified stone. MOH London lists it at £72,608. 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

4.01
Carat
G
Colour
SI1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceStrong
Crown angle36.5°
Pavilion angle41°
OriginNatural
Grading LabGIA
CertificateGIA 1528881482
Dimensions10.14 × 10.10 × 6.35 mm
L/W Ratio1.00
Star length50%
Lower girdle80%
Girdle conditionFaceted
Culet sizeNone
Key to symbols
Crystal, Feather, Cloud
Top View
10.14 mm10.10 mm4.01 ctG / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceStrong
CertificateGIA 1528881482
Side View
Table 57.0%Crown 36.5°Girdle: MediumPavilion 41°Culet: NoneDepth 62.8%

Caratlytics Score

How it works →
A
Excellent
Excellent quality and great value
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Oct 25
Current: £72,608 GBP|Low: £40,227 GBP|High: £73,092 GBP|Avg: £50,230 GBP|+0.4%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
October 30, 2026
Retailer 4£40,227 GBP
Retailer 5£42,389 GBP
Retailer 10£46,243 GBP
Retailer 2£46,425 GBP
Retailer 6£48,170 GBP
Retailer 7£48,170 GBP
Retailer 8£50,097 GBP
Retailer 9£52,024 GBP
Retailer 3£55,122 GBP
MOH London£72,608 GBP

40 data points across 10 retailers

10 retailers£40,227 GBP to £72,608 GBP

A
Cheapest Retailer
-
£40,227 GBP
$53,900 USD
A
Retailer 2
-
£42,326 GBP
$56,712 USD
View
A
Retailer 3
-
£42,389 GBP
$56,797 USD
View
Final sale: no returns
A
Retailer 4
-
£46,425 GBP
View
B+
Retailer 5
-
£48,170 GBP
$64,543 USD
View
B+
Retailer 6
-
£48,170 GBP
$64,543 USD
View
B+
Retailer 7
-
£50,097 GBP
$67,125 USD
View
B+
Retailer 8
-
£52,024 GBP
$69,706 USD
View
B+
Retailer 9
-
£55,122 GBP
€70,341 EUR
View
Most Expensive
B
MOH London
C718A22AE · Oct 29
£72,608 GBP
View
9 more retailers have this diamond
Prices start from £40,227 GBPSave up to £32,381 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.

A
4.01ct Round
£40,227 GBP