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Round|Natural|GIA

0.51ct H SI2 Round Natural Diamond

EX • H/SI2 • GIA 6342828860

Shape and cutting style on the report: Round brilliant

Certificate GIA 6342828860

Diamond specifications and retailer prices

From $1,061 CAD
As of November 4, 2026
Save $1,113 CAD (51%) vs most expensive(unlock to see where)
13 retailers carry this diamond
Most expensive: $3,729 CAD at NZ Jewellers · As of October 30, 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 6342828860. Listed at 13 retailers as of November 4, 2026, with a 105% 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
H
Color
SI2
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle33.5°
Pavilion angle41.2°
OriginNatural
Grading LabGIA
CertificateGIA 6342828860
Dimensions5.18 × 5.16 × 3.15 mm
L/W Ratio1.00
Star length50%
Lower girdle80%
Top View
5.18 mm5.16 mm0.51 ctH / SI2
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 6342828860
Side View
Table 58.0%Crown 33.5°Girdle: MED-STKPavilion 41.2°Culet: NoneDepth 60.8%

Caratlytics Score

How it works →
B+
Very Good
Strong quality and value balance
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 4
Current: $3,729 CAD|Low: $915 CAD|High: $3,729 CAD|Avg: $1,649 CAD
NZ Jewellers
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
November 6, 2026
Retailer 6$1,098 CAD
Retailer 4$1,145 CAD
Retailer 9$1,189 CAD
Retailer 7$1,235 CAD
Retailer 10$1,302 CAD
Retailer 8$1,371 CAD
Retailer 2$1,411 CAD
Retailer 3$1,663 CAD
Retailer 5$2,175 CAD
NZ Jewellers$3,729 CAD

42 data points across 10 retailers

13 retailers$1,061 CAD to $2,175 CAD

B+
Cheapest Retailer
-
$1,061 CAD
B+
Retailer 2
-
$1,098 CAD
View
Final sale: no returns
B+
Retailer 3
-
$1,145 CAD
View
Retailer 4
-
$1,189 CAD
View
Price last confirmed 53 days ago
Retailer 5
-
$1,189 CAD
View
Price last confirmed 8 days ago
B+
Retailer 6
-
$1,204 CAD
View
B+
Retailer 7
-
$1,235 CAD
View
Retailer 8
-
$1,371 CAD
View
Price last confirmed 10 days ago
B+
Retailer 9
-
$1,374 CAD
View
B
Retailer 10
-
$1,411 CAD
View
B
Retailer 11
-
$1,663 CAD
View
B
Retailer 12
-
$2,175 CAD
View
Most Expensive
NZ Jewellers
b884ea88-7e54-40de-8759-5eb9071228ad · Oct 30
$3,729 CAD
$2,670 USD
View
Price under review
12 more retailers have this diamond
Prices start from $1,061 CADSave up to $1,113 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.

B+
0.51ct Round
$1,061 CAD