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Heart|Natural|IGI

0.51ct I SI1 Heart Natural Diamond

VG • I/SI1 • IGI 810634844

Shape and cutting style on the report: Heart brilliant

Certificate IGI 810634844

Diamond specifications and retailer prices

From $532 CAD
As of November 5, 2026
Save $1,104 CAD (67%) vs most expensive(unlock to see where)
13 retailers carry this diamond
Most expensive: $2,284 CAD at NZ Jewellers · As of October 21, 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 I colour (near-colourless) and SI1 clarity (slightly-included), with a very-good cut grade and certified by IGI 810634844. Listed at 13 retailers as of November 2, 2026, with a 208% 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
I
Color
SI1
Clarity
Very Good
Cut

Specifications

CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceFaint
Crown angle38.5°
Pavilion angle37.1°
OriginNatural
Grading LabIGI
CertificateIGI 810634844
Dimensions4.84 × 5.55 × 3.12 mm
L/W Ratio1.15
Girdle conditionFaceted
Top View
4.84 mm5.55 mm0.51 ctI / SI1
OriginNatural
CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceFaint
CertificateIGI 810634844
Side View
Table 61.0%Crown 38.5°Girdle: MED-THKPavilion 37.1°Culet: NoneDepth 56.2%

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: $2,284 CAD|Low: $532 CAD|High: $2,335 CAD|Avg: $966 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
November 6, 2026
Retailer 8$532 CAD
Retailer 4$595 CAD
Retailer 9$626 CAD
Retailer 3$641 CAD
Retailer 6$736 CAD
Retailer 7$879 CAD
Retailer 2$899 CAD
Retailer 10$907 CAD
Retailer 5$940 CAD
Retailer 12$1,355 CAD
Retailer 11$1,636 CAD
NZ Jewellers$2,284 CAD

32 data points across 12 retailers

13 retailers$532 CAD to $1,636 CAD

A
Cheapest Retailer
-
$532 CAD
Retailer 2
-
$595 CAD
View
Price last confirmed 15 days ago
A
Retailer 3
-
$626 CAD
View
Retailer 4
-
$641 CAD
View
Price last confirmed 15 days ago
Retailer 5
-
$647 CAD
View
Price last confirmed 22 days ago
B+
Retailer 6
-
$736 CAD
View
B
Retailer 7
-
$879 CAD
View
B
Retailer 8
-
$899 CAD
View
B
Retailer 9
-
$907 CAD
View
B+
Retailer 10
-
$940 CAD
View
B
Retailer 11
-
$1,355 CAD
View
C
Retailer 12
-
$1,636 CAD
View
Most Expensive
NZ Jewellers
6c336c72-22d3-457d-9cf0-2f67feff8eff · Oct 21
$2,284 CAD
$1,624 USD
View
Price under review
12 more retailers have this diamond
Prices start from $532 CADSave up to $1,104 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
$532 CAD