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Heart|Natural|GIA

0.51ct H SI1 Heart Natural Diamond

EX • H/SI1 • GIA 3545408166

Certificate GIA 3545408166

Diamond specifications and retailer prices

From $557 CAD
As of November 6, 2026
Save $1,082 CAD (66%) vs most expensive(unlock to see where)
13 retailers carry this diamond
Most expensive: $2,258 CAD at NZ Jewellers · As of September 25, 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 H colour (near-colourless) and SI1 clarity (slightly-included), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 3545408166. Listed at 13 retailers as of November 4, 2026, with a 194% 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
SI1
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishVery Good
SymmetryExcellent
FluorescenceNone
Pavilion angle42°
OriginNatural
Grading LabGIA
CertificateGIA 3545408166
Dimensions4.87 × 5.71 × 3.35 mm
L/W Ratio1.17
Top View
4.87 mm5.71 mm0.51 ctH / SI1
OriginNatural
CutExcellent
PolishVery Good
SymmetryExcellent
FluorescenceNone
CertificateGIA 3545408166
Side View
Table 59.0%CrownGirdle: MED-VTKPavilion 42°Culet: NoneDepth 58.7%

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 6
Current: $715 CAD|Low: $477 CAD|High: $1,750 CAD|Avg: $905 CAD|-6.1%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
November 6, 2026
Retailer 12$557 CAD
Retailer 2$647 CAD
Retailer 3$655 CAD
Retailer 7$678 CAD
Retailer 5$699 CAD
Retailer 1$715 CAD
Retailer 6$762 CAD
Retailer 10$990 CAD
Retailer 11$992 CAD
Retailer 8$1,103 CAD
Retailer 4$1,117 CAD
Retailer 9$1,639 CAD

36 data points across 12 retailers

13 retailers$557 CAD to $1,639 CAD

A
Cheapest Retailer
-
$557 CAD
A
Retailer 2
-
$647 CAD
View
B+
Retailer 3
-
$655 CAD
View
Final sale: no returns
A
Retailer 4
-
$678 CAD
View
A
Retailer 5
-
$699 CAD
View
B+
Retailer 6
-
$715 CAD
View
B+
Retailer 7
-
$762 CAD
View
B+
Retailer 8
-
$990 CAD
View
B+
Retailer 9
-
$992 CAD
View
B
Retailer 10
-
$1,103 CAD
View
Retailer 11
-
$1,117 CAD
View
Price last confirmed 33 days ago
B
Retailer 12
-
$1,639 CAD
View
Most Expensive
NZ Jewellers
90cec75c-5fc3-44e1-aea5-17ebe829a068 · Sep 25
$2,258 CAD
$1,605 USD
View
Price under review
12 more retailers have this diamond
Prices start from $557 CADSave up to $1,082 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
$557 CAD