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Oval|Natural|GIA

4.06ct J SI2 Oval Natural Diamond

EX • J/SI2 • GIA 1428158186

Certificate GIA 1428158186

Diamond specifications and retailer prices

From £28,741 GBP
$38,510 USD
As of October 29, 2026
Save £19,877 GBP (41%) vs most expensive(unlock to see where)
7 retailers carry this diamond
Most expensive: £48,618 GBP at MOH London · As of October 29, 2026
View at MOH London

About this 4.06ct natural oval diamond

This 4.06ct natural oval sits in the three to five carat band, graded J colour (near-colourless) and SI2 clarity (slightly-included), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 1428158186. Listed at 7 retailers as of October 29, 2026, with prices from £28,741 to £48,618, a £19,877 spread on the same certified stone. MOH London lists it at £48,618. 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

4.06
Carat
J
Colour
SI2
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 1428158186
Dimensions12.49 × 8.92 × 5.69 mm
L/W Ratio1.40
Culet sizeNone
Top View
12.49 mm8.92 mm4.06 ctJ / SI2
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 1428158186
Side View
Table 60.0%CrownGirdle: STK-THKPavilionCulet: NoneDepth 63.8%

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: Oct 29
Current: £48,618 GBP|Low: £28,741 GBP|High: £48,943 GBP|Avg: £35,456 GBP|-0.5%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
October 30, 2026
Retailer 7£28,741 GBP
Retailer 4£30,498 GBP
Retailer 3£31,211 GBP
Retailer 2£34,256 GBP
Retailer 5£37,512 GBP
Retailer 6£37,653 GBP
MOH London£48,618 GBP

33 data points across 7 retailers

7 retailers£28,741 GBP to £48,618 GBP

B+
Cheapest Retailer
-
£28,741 GBP
$38,510 USD
B+
Retailer 2
-
£30,498 GBP
$40,864 USD
View
B+
Retailer 3
-
£31,211 GBP
View
B
Retailer 4
-
£32,255 GBP
$43,218 USD
View
B+
Retailer 5
-
£34,256 GBP
View
B
Retailer 6
-
£37,512 GBP
€47,869 EUR
View
Most Expensive
B
MOH London
79C059BF9 · Oct 29
£48,618 GBP
View
6 more retailers have this diamond
Prices start from £28,741 GBPSave up to £19,877 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+
4.06ct Oval
£28,741 GBP