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Oval|Natural|GIA

3.51ct H SI1 Oval Natural Diamond

EX • H/SI1 • GIA 1539949966

Certificate GIA 1539949966

Diamond specifications and retailer prices

From HK$368,727 HKD
CA$65,271 CAD
As of October 30, 2026
Save HK$240,077 HKD (39%) vs most expensive(unlock to see where)
9 retailers carry this diamond
Most expensive: HK$608,804 HKD at MOH London · As of November 1, 2026
View at MOH London

About this 3.51ct natural oval diamond

This 3.51ct natural oval sits in the three to five carat band, graded H colour (near-colourless) and SI1 clarity (slightly-included), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 1539949966. Listed at 9 retailers as of October 30, 2026, with prices from HK$368,727 to HK$608,804, a HK$240,077 spread on the same certified stone. MOH London lists it at HK$608,804. 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

3.51
Carat
H
Colour
SI1
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishVery Good
SymmetryVery Good
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 1539949966
Dimensions11.83 × 8.46 × 5.33 mm
L/W Ratio1.40
Culet sizeNone
Key to symbols
Cloud, Crystal, Feather, Needle
Top View
11.83 mm8.46 mm3.51 ctH / SI1
OriginNatural
CutExcellent
PolishVery Good
SymmetryVery Good
FluorescenceNone
CertificateGIA 1539949966
Side View
Table 62.0%CrownGirdle: MED-THKPavilionCulet: NoneDepth 63.0%

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 30
Current: HK$608,804 HKD|Low: HK$259,165 HKD|High: HK$612,062 HKD|Avg: HK$388,899 HKD|+5.3%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
Retailer 13
Retailer 14
Retailer 15
Retailer 16
Retailer 17
Retailer 18
Retailer 19
Retailer 20
November 2, 2026
Retailer 12HK$259,165 HKD
Retailer 6HK$331,176 HKD
Retailer 18HK$333,922 HKD
Retailer 3HK$342,090 HKD
Retailer 10HK$344,937 HKD
Retailer 8HK$348,941 HKD
Retailer 7HK$350,195 HKD
Retailer 9HK$365,016 HKD
Retailer 17HK$368,727 HKD
Retailer 4HK$369,842 HKD
Retailer 11HK$392,928 HKD
Retailer 13HK$397,034 HKD
Retailer 19HK$400,669 HKD
Retailer 15HK$406,059 HKD
Retailer 14HK$413,513 HKD
Retailer 20HK$416,079 HKD
Retailer 16HK$445,321 HKD
Retailer 2HK$462,521 HKD
Retailer 5HK$473,444 HKD
MOH LondonHK$608,804 HKD

14 data points across 20 retailers

9 retailersHK$368,727 HKD to HK$608,804 HKD

B+
Cheapest Retailer
-
HK$368,727 HKD
CA$65,271 CAD
B+
Retailer 2
-
HK$397,034 HKD
£39,845 GBP
View
Retailer 3
-
HK$400,669 HKD
$51,066 USD
View
Price last confirmed 41 days ago
B
Retailer 4
-
HK$406,059 HKD
$51,753 USD
View
B
Retailer 5
-
HK$413,513 HKD
$52,703 USD
View
Retailer 6
-
HK$416,079 HKD
$53,030 USD
View
Price last confirmed 41 days ago
B
Retailer 7
-
HK$445,321 HKD
$56,757 USD
View
B
Retailer 8
-
HK$462,521 HKD
€56,142 EUR
View
Most Expensive
B
MOH London
4CA951700 · Nov 1
HK$608,804 HKD
£61,097 GBP
View
8 more retailers have this diamond
Prices start from HK$368,727 HKDSave up to HK$240,077 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+
3.51ct Oval
HK$368,727 HKD