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Oval|Natural|GIA

0.51ct H SI1 Oval Natural Diamond

EX • H/SI1 • GIA 5556394112

Certificate GIA 5556394112

Diamond specifications and retailer prices

From HK$4,224 HKD
As of November 6, 2026
Save HK$4,217 HKD (50%) vs most expensive(unlock to see where)
10 retailers carry this diamond
Most expensive: HK$17,404 HKD at Diamond Exchange Canada · As of November 5, 2026
View at Diamond Exchange Canada

About this 0.51ct natural oval diamond

This 0.51ct natural oval sits in the half to three-quarter 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 5556394112. Listed at 10 retailers as of November 6, 2026, with a 100% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. 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

0.51
Carat
H
Colour
SI1
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishVery Good
SymmetryVery Good
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 5556394112
Dimensions6.57 × 4.47 × 2.70 mm
L/W Ratio1.47
Culet sizeNone
Key to symbols
Cloud
Top View
6.57 mm4.47 mm0.51 ctH / SI1
OriginNatural
CutExcellent
PolishVery Good
SymmetryVery Good
FluorescenceNone
CertificateGIA 5556394112
Side View
Table 63.0%CrownGirdle: STK-THKPavilionCulet: NoneDepth 60.3%

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: Nov 6
Current: HK$8,253 HKD|Low: HK$3,840 HKD|High: HK$18,904 HKD|Avg: HK$8,456 HKD|+1.3%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
November 6, 2026
Retailer 4HK$4,224 HKD
Retailer 5HK$5,815 HKD
Retailer 8HK$6,301 HKD
Retailer 2HK$7,250 HKD
Retailer 3HK$7,798 HKD
Retailer 1HK$8,253 HKD
Retailer 6HK$8,441 HKD
Retailer 9HK$9,138 HKD
Retailer 7HK$18,904 HKD

43 data points across 9 retailers

10 retailersHK$4,224 HKD to HK$8,441 HKD

A
Cheapest Retailer
-
HK$4,224 HKD
Final sale: no returns
B+
Retailer 2
-
HK$5,572 HKD
View
B+
Retailer 3
-
HK$5,815 HKD
View
B+
Retailer 4
-
HK$6,717 HKD
View
B
Retailer 5
-
HK$7,250 HKD
View
B
Retailer 6
-
HK$7,673 HKD
View
B
Retailer 7
-
HK$7,798 HKD
View
B
Retailer 8
-
HK$8,253 HKD
View
B
Retailer 9
-
HK$8,441 HKD
View
Most Expensive
Diamond Exchange Canada
1962132016 · Nov 5
HK$17,404 HKD
CA$3,084 CAD
View
Price under review
9 more retailers have this diamond
Prices start from HK$4,224 HKDSave up to HK$4,217 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.

A
0.51ct Oval
HK$4,224 HKD