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Oval|Natural|GIA

3.51ct H SI1 Oval Natural Diamond

EX • H/SI1 • GIA 1545457368

Certificate GIA 1545457368

Diamond specifications and retailer prices

From HK$338,738 HKD
$43,175 USD
As of October 31, 2026
Save HK$90,675 HKD (21%) vs most expensive(unlock to see where)
4 retailers carry this diamond
Most expensive: HK$429,413 HKD at 77 Diamonds · As of November 2, 2026
View at 77 Diamonds

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 1545457368. Listed at 4 retailers as of October 31, 2026, with prices from HK$338,738 to HK$429,413, a HK$90,675 spread on the same certified stone. 77 Diamonds lists it at HK$429,413. 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
PolishExcellent
SymmetryExcellent
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 1545457368
Dimensions12.09 × 8.41 × 5.37 mm
L/W Ratio1.44
Girdle conditionFaceted
Culet sizeNone
Key to symbols
Crystal, Cloud, Feather, Needle, Indented Natural, Natural
Top View
12.09 mm8.41 mm3.51 ctH / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 1545457368
Side View
Table 63.0%CrownGirdle: THK-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$429,413 HKD|Low: HK$338,738 HKD|High: HK$453,430 HKD|Avg: HK$381,388 HKD|-5.3%
77 Diamonds
Retailer 2
Retailer 3
Retailer 4
November 2, 2026
Retailer 3HK$338,738 HKD
Retailer 4HK$360,690 HKD
Retailer 2HK$384,871 HKD
77 DiamondsHK$429,413 HKD

31 data points across 4 retailers

4 retailersHK$338,738 HKD to HK$429,413 HKD

B+
Cheapest Retailer
-
HK$338,738 HKD
$43,175 USD
B+
Retailer 2
-
HK$360,690 HKD
$45,973 USD
View
B
Retailer 3
-
HK$384,871 HKD
$49,055 USD
View
Most Expensive
B
77 Diamonds
OVZ7QHRAZTQ · Nov 2
HK$429,413 HKD
£43,096 GBP
View
3 more retailers have this diamond
Prices start from HK$338,738 HKDSave up to HK$90,675 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$338,738 HKD