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Heart|Natural|GIA

0.51ct G SI1 Heart Natural Diamond

VG • G/SI1 • GIA 6515727921

Certificate GIA 6515727921

Diamond specifications and retailer prices

From $712 CAD
As of November 6, 2026
Save $1,248 CAD (64%) vs most expensive(unlock to see where)
18 retailers carry this diamond
Most expensive: $2,660 CAD at NZ Jewellers · As of November 5, 2026
View at NZ Jewellers

About this 0.51ct natural heart diamond

This 0.51ct natural heart sits in the half to three-quarter carat band, graded G colour (near-colourless) and SI1 clarity (slightly-included), with a very-good cut grade stated by the retailer rather than the lab and certified by GIA 6515727921. Listed at 18 retailers as of November 2, 2026, with a 175% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. Cut grade matters more than carat or clarity for visible brilliance. If you can shift budget toward an Excellent or Ideal cut, do it before chasing higher colour or clarity.

The 4Cs

0.51
Carat
G
Color
SI1
Clarity
Very Good
Cut (retailer stated)

Specifications

Cut (retailer stated)Very Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle36.4°
Pavilion angle37.8°
OriginNatural
Grading LabGIA
CertificateGIA 6515727921
Dimensions5.69 × 5.07 × 2.76 mm
L/W Ratio1.12
Top View
5.69 mm5.07 mm0.51 ctG / SI1
OriginNatural
CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 6515727921
Side View
Table 56.0%Crown 36.4°Girdle: STK-THKPavilion 37.8°Culet: NoneDepth 54.5%

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 6
Current: $2,660 CAD|Low: $712 CAD|High: $3,383 CAD|Avg: $1,161 CAD|-21.4%
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
Retailer 17
Retailer 18
Retailer 19
November 7, 2026
Retailer 18$712 CAD
Retailer 4$760 CAD
Retailer 7$782 CAD
Retailer 13$820 CAD
Retailer 5$848 CAD
Retailer 9$913 CAD
Retailer 17$913 CAD
Retailer 19$979 CAD
Retailer 2$1,031 CAD
Retailer 6$1,032 CAD
Retailer 12$1,035 CAD
Retailer 8$1,041 CAD
Retailer 16$1,062 CAD
Retailer 3$1,118 CAD
Retailer 10$1,175 CAD
Retailer 14$1,308 CAD
Retailer 11$1,494 CAD
Retailer 15$1,959 CAD
NZ Jewellers$2,660 CAD

23 data points across 19 retailers

18 retailers$712 CAD to $1,959 CAD

A
Cheapest Retailer
-
$712 CAD
B+
Retailer 2
-
$760 CAD
View
B+
Retailer 3
-
$782 CAD
View
Final sale: no returns
B+
Retailer 4
-
$820 CAD
View
B+
Retailer 5
-
$848 CAD
View
Retailer 6
-
$913 CAD
View
Price last confirmed 9 days ago
B
Retailer 7
-
$913 CAD
View
B+
Retailer 8
-
$979 CAD
View
B
Retailer 9
-
$1,031 CAD
View
B
Retailer 10
-
$1,032 CAD
View
B+
Retailer 11
-
$1,035 CAD
View
B
Retailer 12
-
$1,041 CAD
View
B
Retailer 13
-
$1,062 CAD
View
B
Retailer 14
-
$1,118 CAD
View
B
Retailer 15
-
$1,175 CAD
View
B
Retailer 16
-
$1,308 CAD
View
B
Retailer 17
-
$1,959 CAD
View
Most Expensive
NZ Jewellers
94ee7a14-1ad9-4429-8ee3-e09098f90f44 · Nov 5
$2,660 CAD
$1,891 USD
View
Price under review
17 more retailers have this diamond
Prices start from $712 CADSave up to $1,248 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 Heart
$712 CAD