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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 HK$302,140 HKD
$38,510 USD
As of October 31, 2026
Save HK$206,235 HKD (41%) vs most expensive(unlock to see where)
7 retailers carry this diamond
Most expensive: HK$508,375 HKD at MOH London · As of November 1, 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 31, 2026, with prices from HK$302,140 to HK$508,375, a HK$206,235 spread on the same certified stone. MOH London lists it at HK$508,375. 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 31
Current: HK$508,375 HKD|Low: HK$320,607 HKD|High: HK$514,503 HKD|Avg: HK$379,185 HKD|-1.1%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
November 1, 2026
Retailer 5HK$320,607 HKD
Retailer 3HK$328,106 HKD
Retailer 6HK$339,075 HKD
Retailer 2HK$359,037 HKD
Retailer 4HK$394,970 HKD
Retailer 7HK$395,819 HKD
MOH LondonHK$508,375 HKD

33 data points across 7 retailers

7 retailersHK$302,140 HKD to HK$508,375 HKD

B+
Cheapest Retailer
-
HK$302,140 HKD
$38,510 USD
B+
Retailer 2
-
HK$320,607 HKD
$40,864 USD
View
B+
Retailer 3
-
HK$328,106 HKD
£32,929 GBP
View
B
Retailer 4
-
HK$339,075 HKD
$43,218 USD
View
B+
Retailer 5
-
HK$359,037 HKD
£36,033 GBP
View
B
Retailer 6
-
HK$394,970 HKD
€47,945 EUR
View
Most Expensive
B
MOH London
79C059BF9 · Nov 1
HK$508,375 HKD
£51,021 GBP
View
6 more retailers have this diamond
Prices start from HK$302,140 HKDSave up to HK$206,235 HKD

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
HK$302,140 HKD