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0.51ct E SI2 Round Natural Diamond

EX • E/SI2 • GIA 2556413733

Certificate GIA 2556413733

Diamond specifications and retailer prices

From $456 USD
As of November 5, 2026
Save $1,467 USD (76%) vs most expensive(unlock to see where)
16 retailers carry this diamond
Most expensive: $1,923 USD 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 $456 to $1,923, a $1,467 spread on the same certified stone. NZ Jewellers lists it at $1,923. 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
Color
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: $1,923 USD|Low: $456 USD|High: $1,941 USD|Avg: $871 USD|-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 12$456 USD
Retailer 8$524 USD
Retailer 5$565 USD
Retailer 6$597 USD
Retailer 4$613 USD
Retailer 9$643 USD
Retailer 7$660 USD
Retailer 15$707 USD
Retailer 10$745 USD
Retailer 11$755 USD
Retailer 14$785 USD
Retailer 3$858 USD
Retailer 2$890 USD
Retailer 13$1,416 USD
Retailer 16$1,770 USD
NZ Jewellers$1,923 USD

24 data points across 16 retailers

16 retailers$456 USD to $1,923 USD

A
Cheapest Retailer
-
$456 USD
A
Retailer 2
-
$524 USD
View
A
Retailer 3
-
$565 USD
View
Final sale: no returns
A
Retailer 4
-
$597 USD
View
A
Retailer 5
-
$613 USD
View
A
Retailer 6
-
$643 USD
View
A
Retailer 7
-
$660 USD
View
A
Retailer 8
-
$707 USD
View
A
Retailer 9
-
$745 USD
View
A
Retailer 10
-
$755 USD
View
A
Retailer 11
-
$785 USD
View
A
Retailer 12
-
$858 USD
View
B+
Retailer 13
-
$890 USD
View
B
Retailer 14
-
$1,416 USD
View
B
Retailer 15
-
$1,770 USD
View
Most Expensive
B
NZ Jewellers
b9c7c7ab-d78f-4973-8967-444245e06663 · Nov 4
$1,923 USD
View
15 more retailers have this diamond
Prices start from $456 USDSave up to $1,467 USD

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
$456 USD