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Round|Natural|GIA

0.51ct E SI2 Round Natural Diamond

EX • E/SI2 • GIA 2556413733

Certificate GIA 2556413733

Diamond specifications and retailer prices

From HK$3,577 HKD
As of November 5, 2026
Save HK$11,509 HKD (76%) vs most expensive(unlock to see where)
16 retailers carry this diamond
Most expensive: HK$15,086 HKD at NZ Jewellers · As of November 4, 2026
View at NZ Jewellers

About this 0.51ct natural round diamond

This 0.51ct natural round sits in the half to three-quarter carat band, graded E colour (colourless) and SI2 clarity (slightly-included), with a top-tier cut grade and certified by GIA 2556413733. Listed at 16 retailers as of November 4, 2026, with prices from HK$3,577 to HK$15,086, a HK$11,509 spread on the same certified stone. NZ Jewellers lists it at HK$15,086. 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
E
Colour
SI2
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle35°
Pavilion angle40.6°
OriginNatural
Grading LabGIA
CertificateGIA 2556413733
Dimensions5.14 × 5.17 × 3.16 mm
L/W Ratio1.01
Girdle conditionFaceted
Culet sizeNone
Key to symbols
Crystal
Top View
5.14 mm5.17 mm0.51 ctE / SI2
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 2556413733
Side View
Table 57.0%Crown 35°Girdle: MediumPavilion 40.6°Culet: NoneDepth 61.2%

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 5
Current: HK$15,086 HKD|Low: HK$3,577 HKD|High: HK$15,228 HKD|Avg: HK$6,836 HKD|-0.9%
NZ Jewellers
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
Retailer 13
Retailer 14
Retailer 15
Retailer 16
November 6, 2026
Retailer 12HK$3,577 HKD
Retailer 8HK$4,111 HKD
Retailer 5HK$4,433 HKD
Retailer 6HK$4,684 HKD
Retailer 4HK$4,809 HKD
Retailer 9HK$5,044 HKD
Retailer 7HK$5,178 HKD
Retailer 15HK$5,547 HKD
Retailer 10HK$5,845 HKD
Retailer 11HK$5,923 HKD
Retailer 14HK$6,158 HKD
Retailer 3HK$6,731 HKD
Retailer 2HK$6,982 HKD
Retailer 13HK$11,109 HKD
Retailer 16HK$13,886 HKD
NZ JewellersHK$15,086 HKD

24 data points across 16 retailers

16 retailersHK$3,577 HKD to HK$15,086 HKD

A
Cheapest Retailer
-
HK$3,577 HKD
A
Retailer 2
-
HK$4,111 HKD
View
A
Retailer 3
-
HK$4,433 HKD
View
Final sale: no returns
A
Retailer 4
-
HK$4,684 HKD
View
A
Retailer 5
-
HK$4,809 HKD
View
A
Retailer 6
-
HK$5,044 HKD
View
A
Retailer 7
-
HK$5,178 HKD
View
A
Retailer 8
-
HK$5,547 HKD
View
A
Retailer 9
-
HK$5,845 HKD
View
A
Retailer 10
-
HK$5,923 HKD
View
A
Retailer 11
-
HK$6,158 HKD
View
A
Retailer 12
-
HK$6,731 HKD
View
B+
Retailer 13
-
HK$6,982 HKD
View
B
Retailer 14
-
HK$11,109 HKD
View
B
Retailer 15
-
HK$13,886 HKD
View
Most Expensive
B
NZ Jewellers
b9c7c7ab-d78f-4973-8967-444245e06663 · Nov 4
HK$15,086 HKD
$1,923 USD
View
15 more retailers have this diamond
Prices start from HK$3,577 HKDSave up to HK$11,509 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 Round
HK$3,577 HKD