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Round|Natural|GIA

0.51ct H SI2 Round Natural Diamond

EX • H/SI2 • GIA 7551317215

Certificate GIA 7551317215

Diamond specifications and retailer prices

From $543 CAD
As of November 5, 2026
Save $1,758 CAD (76%) vs most expensive(unlock to see where)
15 retailers carry this diamond
Most expensive: $2,302 CAD 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 H colour (near-colourless) and SI2 clarity (slightly-included), with a top-tier cut grade and certified by GIA 7551317215. Listed at 15 retailers as of November 4, 2026, with prices from $543 to $2,302, a $1,758 spread on the same certified stone. NZ Jewellers lists it at $2,302. 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
H
Color
SI2
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceFaint
Crown angle35°
Pavilion angle41.4°
OriginNatural
Grading LabGIA
CertificateGIA 7551317215
Dimensions5.09 × 5.12 × 3.19 mm
L/W Ratio1.01
Key to symbols
Twinning Wisp, Feather, Cloud
Top View
5.09 mm5.12 mm0.51 ctH / SI2
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceFaint
CertificateGIA 7551317215
Side View
Table 57.0%Crown 35°Girdle: THN-MEDPavilion 41.4°Culet: NDepth 62.4%

Caratlytics Score

How it works →
A
Excellent
Excellent quality and great value
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See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 5
Current: $2,302 CAD|Low: $543 CAD|High: $2,353 CAD|Avg: $951 CAD|-2.2%
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 5, 2026
Retailer 2$543 CAD
Retailer 3$584 CAD
Retailer 4$626 CAD
Retailer 7$709 CAD
Retailer 15$735 CAD
Retailer 5$783 CAD
Retailer 12$790 CAD
Retailer 6$802 CAD
Retailer 11$848 CAD
Retailer 9$906 CAD
Retailer 13$918 CAD
Retailer 8$992 CAD
Retailer 10$1,020 CAD
Retailer 14$1,695 CAD
NZ Jewellers$2,302 CAD

27 data points across 15 retailers

15 retailers$543 CAD to $2,302 CAD

A
Cheapest Retailer
-
$543 CAD
A
Retailer 2
-
$584 CAD
View
A
Retailer 3
-
$626 CAD
View
Retailer 4
-
$709 CAD
View
Price last confirmed 14 days ago
A
Retailer 5
-
$735 CAD
View
Retailer 6
-
$783 CAD
View
Price last confirmed 10 days ago
A
Retailer 7
-
$790 CAD
View
Retailer 8
-
$802 CAD
View
Price last confirmed 8 days ago
A
Retailer 9
-
$848 CAD
View
A
Retailer 10
-
$906 CAD
View
A
Retailer 11
-
$918 CAD
View
B+
Retailer 12
-
$992 CAD
View
B+
Retailer 13
-
$1,020 CAD
View
B
Retailer 14
-
$1,695 CAD
View
Most Expensive
B
NZ Jewellers
5725664b-4f38-49c7-bb37-be002fbda403 · Nov 4
$2,302 CAD
$1,648 USD
View
14 more retailers have this diamond
Prices start from $543 CADSave up to $1,758 CAD

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
$543 CAD