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Oval|Natural|GIA

0.51ct H SI2 Oval Natural Diamond

VG • H/SI2 • GIA 2517768691

Certificate GIA 2517768691

Diamond specifications and retailer prices

From HK$3,331 HKD
As of November 1, 2026
Save HK$4,804 HKD (59%) vs most expensive(unlock to see where)
17 retailers carry this diamond
Most expensive: HK$13,841 HKD at NZ Jewellers · As of August 29, 2026
View at NZ Jewellers

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 SI2 clarity (slightly-included), with a very-good cut grade stated by the retailer rather than the lab and certified by GIA 2517768691. Listed at 17 retailers as of November 1, 2026, with a 144% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. Cut grade matters more than carat or clarity for visible brilliance. If you can shift budget toward an Excellent or Ideal cut, do it before chasing higher colour or clarity.

The 4Cs

0.51
Carat
H
Colour
SI2
Clarity
Very Good
Cut (retailer stated)

Specifications

Cut (retailer stated)Very Good
PolishExcellent
SymmetryGood
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 2517768691
Dimensions6.35 × 4.46 × 2.78 mm
L/W Ratio1.42
Top View
6.35 mm4.46 mm0.51 ctH / SI2
OriginNatural
CutVery Good
PolishExcellent
SymmetryGood
FluorescenceNone
CertificateGIA 2517768691
Side View
Table 57.0%CrownGirdle: STK-VTKPavilionCulet: NoneDepth 62.4%

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 1
Current: HK$4,185 HKD|Low: HK$3,331 HKD|High: HK$8,433 HKD|Avg: HK$4,599 HKD|-3.8%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
November 6, 2026
Retailer 9HK$3,331 HKD
Retailer 7HK$3,441 HKD
Retailer 3HK$3,981 HKD
Retailer 10HK$3,981 HKD
Retailer 2HK$4,115 HKD
Retailer 1HK$4,185 HKD
Retailer 4HK$4,342 HKD
Retailer 8HK$4,365 HKD
Retailer 11HK$4,945 HKD
Retailer 6HK$5,345 HKD
Retailer 5HK$8,135 HKD

42 data points across 11 retailers

17 retailersHK$3,331 HKD to HK$8,135 HKD

Retailer 1
-
HK$3,198 HKD
Price last confirmed 29 days ago
A
Retailer 2
-
HK$3,331 HKD
View
Retailer 3
-
HK$3,441 HKD
View
Price last confirmed 38 days ago
Retailer 4
-
HK$3,441 HKD
View
Price last confirmed 12 days ago
Retailer 5
-
HK$3,441 HKD
View
Price last confirmed 21 days ago
Retailer 6
-
HK$3,684 HKD
View
Price last confirmed 28 days ago
Retailer 7
-
HK$3,778 HKD
View
Price last confirmed 59 days ago
B+
Retailer 8
-
HK$3,981 HKD
View
B+
Retailer 9
-
HK$4,115 HKD
View
A
Retailer 10
-
HK$4,185 HKD
View
B+
Retailer 11
-
HK$4,342 HKD
View
B+
Retailer 12
-
HK$4,365 HKD
View
B+
Retailer 13
-
HK$4,945 HKD
View
B+
Retailer 14
-
HK$5,345 HKD
View
B
Retailer 15
-
HK$8,135 HKD
View
Retailer 16
-
HK$13,520 HKD
View
Price last confirmed 38 days ago
Most Expensive
NZ Jewellers
7b192a98-83fe-4b0e-a397-acd2b087e441 · Aug 29
HK$13,841 HKD
$1,766 USD
View
Price last confirmed 69 days ago
16 more retailers have this diamond
Prices start from HK$3,331 HKDSave up to HK$4,804 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$3,331 HKD