Round|Natural|GIA

0.51ct E SI2 Round Natural Diamond

EX • E/SI2 • GIA 7548843175

Certificate GIA 7548843175

Diamond specifications and retailer prices

From $416 USD
As of November 5, 2026
Save $1,345 USD (76%) vs most expensive(unlock to see where)
15 retailers carry this diamond
Most expensive: $1,761 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 7548843175. Listed at 15 retailers as of November 4, 2026, with prices from $416 to $1,761, a $1,345 spread on the same certified stone. NZ Jewellers lists it at $1,761. 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
FluorescenceFaint
Crown angle36.5°
Pavilion angle41°
OriginNatural
Grading LabGIA
CertificateGIA 7548843175
Dimensions5.08 × 5.10 × 3.19 mm
L/W Ratio1.00
Key to symbols
Crystal, Feather, Cloud
Top View
5.08 mm5.10 mm0.51 ctE / SI2
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceFaint
CertificateGIA 7548843175
Side View
Table 57.0%Crown 36.5°Girdle: MED-STKPavilion 41°Culet: 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 5
Current: $1,761 USD|Low: $416 USD|High: $1,787 USD|Avg: $759 USD|-1.5%
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
November 6, 2026
Retailer 9$416 USD
Retailer 5$448 USD
Retailer 15$473 USD
Retailer 4$561 USD
Retailer 6$598 USD
Retailer 14$605 USD
Retailer 7$614 USD
Retailer 13$648 USD
Retailer 2$677 USD
Retailer 3$693 USD
Retailer 12$782 USD
Retailer 8$814 USD
Retailer 10$828 USD
Retailer 11$1,295 USD
NZ Jewellers$1,761 USD

23 data points across 15 retailers

15 retailers$416 USD to $1,761 USD

A
Cheapest Retailer
-
$416 USD
A
Retailer 2
-
$448 USD
View
A
Retailer 3
-
$473 USD
View
A
Retailer 4
-
$561 USD
View
Retailer 5
-
$598 USD
View
Price last confirmed 10 days ago
A
Retailer 6
-
$605 USD
View
Retailer 7
-
$614 USD
View
Price last confirmed 8 days ago
A
Retailer 8
-
$648 USD
View
A
Retailer 9
-
$677 USD
View
A
Retailer 10
-
$693 USD
View
A
Retailer 11
-
$782 USD
View
A
Retailer 12
-
$814 USD
View
A
Retailer 13
-
$828 USD
View
B+
Retailer 14
-
$1,295 USD
View
Most Expensive
B
NZ Jewellers
af7a02a7-a6b1-4607-a4ea-14e3f6cbacf7 · Nov 4
$1,761 USD
View
14 more retailers have this diamond
Prices start from $416 USDSave up to $1,345 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
$416 USD