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Oval|Natural|GIA

0.51ct D SI2 Oval Natural Diamond

GD • D/SI2 • GIA 2507889766

Certificate GIA 2507889766

Diamond specifications and retailer prices

From HK$5,173 HKD
As of November 6, 2026
Save HK$12,595 HKD (71%) vs most expensive(unlock to see where)
11 retailers carry this diamond
Most expensive: HK$17,767 HKD at NZ Jewellers · As of November 5, 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 D colour (colourless) and SI2 clarity (slightly-included), with a standard cut grade stated by the retailer rather than the lab and certified by GIA 2507889766. Listed at 11 retailers as of November 5, 2026, with prices from HK$5,173 to HK$17,767, a HK$12,595 spread on the same certified stone. NZ Jewellers lists it at HK$17,767. 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
D
Colour
SI2
Clarity
Good
Cut (retailer stated)

Specifications

Cut (retailer stated)Good
PolishExcellent
SymmetryVery Good
FluorescenceMedium
OriginNatural
Grading LabGIA
CertificateGIA 2507889766
Dimensions6.36 × 4.52 × 2.75 mm
L/W Ratio1.41
Top View
6.36 mm4.52 mm0.51 ctD / SI2
OriginNatural
CutGood
PolishExcellent
SymmetryVery Good
FluorescenceMedium
CertificateGIA 2507889766
Side View
Table 62.0%CrownGirdle: THK-VTKPavilionCulet: NoneDepth 61.0%

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$17,767 HKD|Low: HK$4,358 HKD|High: HK$18,449 HKD|Avg: HK$8,859 HKD|-3.7%
NZ Jewellers
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
November 6, 2026
Retailer 2HK$5,173 HKD
Retailer 5HK$5,666 HKD
Retailer 7HK$5,886 HKD
Retailer 6HK$6,105 HKD
Retailer 4HK$6,474 HKD
Retailer 9HK$6,842 HKD
Retailer 3HK$7,924 HKD
Retailer 8HK$10,753 HKD
NZ JewellersHK$17,767 HKD

44 data points across 9 retailers

11 retailersHK$5,173 HKD to HK$17,767 HKD

A
Cheapest Retailer
-
HK$5,173 HKD
Final sale: no returns
B+
Retailer 2
-
HK$5,666 HKD
View
B+
Retailer 3
-
HK$5,886 HKD
View
B+
Retailer 4
-
HK$5,980 HKD
View
B+
Retailer 5
-
HK$6,105 HKD
View
B+
Retailer 6
-
HK$6,474 HKD
View
B
Retailer 7
-
HK$6,842 HKD
View
B
Retailer 8
-
HK$7,265 HKD
View
B
Retailer 9
-
HK$7,924 HKD
View
B
Retailer 10
-
HK$10,753 HKD
View
Most Expensive
C
NZ Jewellers
b0d7bd41-02c5-4079-803d-9b2a8383066d · Nov 5
HK$17,767 HKD
$2,267 USD
View
10 more retailers have this diamond
Prices start from HK$5,173 HKDSave up to HK$12,595 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$5,173 HKD