CaratHunter
Plans
Oval|Natural|GIA

0.51ct D SI2 Oval Natural Diamond

EX • D/SI2 • GIA 2564205635

Certificate GIA 2564205635

Diamond specifications and retailer prices

From HK$4,005 HKD
As of November 6, 2026
Save HK$6,066 HKD (60%) vs most expensive(unlock to see where)
17 retailers carry this diamond
Most expensive: HK$15,283 HKD at NZ Jewellers · As of September 15, 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 top-tier cut grade stated by the retailer rather than the lab and certified by GIA 2564205635. Listed at 17 retailers as of November 2, 2026, with a 151% 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
D
Colour
SI2
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishVery Good
SymmetryGood
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 2564205635
Dimensions6.03 × 4.49 × 2.81 mm
L/W Ratio1.34
Girdle conditionFaceted
Culet sizeNone
Key to symbols
Crystal, Cloud, Feather
Top View
6.03 mm4.49 mm0.51 ctD / SI2
OriginNatural
CutExcellent
PolishVery Good
SymmetryGood
FluorescenceNone
CertificateGIA 2564205635
Side View
Table 64.0%CrownGirdle: STK-VTKPavilionCulet: NoneDepth 62.7%

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$5,376 HKD|Low: HK$3,864 HKD|High: HK$11,098 HKD|Avg: HK$6,497 HKD|-7.9%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
November 6, 2026
Retailer 5HK$4,005 HKD
Retailer 1HK$5,376 HKD
Retailer 3HK$5,439 HKD
Retailer 2HK$6,435 HKD
Retailer 4HK$6,693 HKD
Retailer 6HK$10,071 HKD

45 data points across 6 retailers

17 retailersHK$4,005 HKD to HK$10,071 HKD

A
Cheapest Retailer
-
HK$4,005 HKD
Final sale: no returns
Retailer 2
-
HK$4,467 HKD
View
Price last confirmed 19 days ago
Retailer 3
-
HK$4,804 HKD
View
Price last confirmed 45 days ago
Retailer 4
-
HK$4,812 HKD
View
Price last confirmed 21 days ago
Retailer 5
-
HK$4,812 HKD
View
Price last confirmed 22 days ago
Retailer 6
-
HK$4,875 HKD
View
Price last confirmed 53 days ago
Retailer 7
-
HK$5,157 HKD
View
Price last confirmed 19 days ago
A
Retailer 8
-
HK$5,376 HKD
View
A
Retailer 9
-
HK$5,439 HKD
View
Retailer 10
-
HK$5,549 HKD
View
Price last confirmed 45 days ago
Retailer 11
-
HK$5,627 HKD
View
Price last confirmed 53 days ago
B+
Retailer 12
-
HK$6,435 HKD
View
B+
Retailer 13
-
HK$6,693 HKD
View
B
Retailer 14
-
HK$10,071 HKD
View
Retailer 15
-
HK$14,013 HKD
View
Price last confirmed 20 days ago
Retailer 16
-
HK$15,071 HKD
View
Price last confirmed 46 days ago
Most Expensive
NZ Jewellers
da349af0-584a-489a-bff0-25c08fe352aa · Sep 15
HK$15,283 HKD
$1,950 USD
View
Price last confirmed 52 days ago
16 more retailers have this diamond
Prices start from HK$4,005 HKDSave up to HK$6,066 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$4,005 HKD