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Heart|Natural|GIA

1.51ct L SI1 Heart Natural Diamond

EX • L/SI1 • GIA 7536538529

Certificate GIA 7536538529

Diamond specifications and retailer prices

From $2,581 CAD
As of November 5, 2026
Save $3,967 CAD (61%) vs most expensive(unlock to see where)
6 retailers carry this diamond
Most expensive: $6,548 CAD at NZ Jewellers · As of November 3, 2026
View at NZ Jewellers

About this 1.51ct natural heart diamond

This 1.51ct natural heart sits in the one-and-a-half to two carat band, graded L colour (faint-tinted) and SI1 clarity (slightly-included), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 7536538529. Listed at 6 retailers as of November 3, 2026, with prices from $2,581 to $6,548, a $3,967 spread on the same certified stone. NZ Jewellers lists it at $6,548. 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

1.51
Carat
L
Color
SI1
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryVery Good
FluorescenceFaint
Crown angle35.33°
Pavilion angle41.58°
OriginNatural
Grading LabGIA
CertificateGIA 7536538529
Dimensions7.11 × 7.98 × 4.65 mm
L/W Ratio1.12
Girdle conditionVery Thick
Key to symbols
Feather, Crystal, Etch Channel, Needle, Indented Natural
Top View
7.11 mm7.98 mm1.51 ctL / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryVery Good
FluorescenceFaint
CertificateGIA 7536538529
Side View
Table 63.0%Crown 35.33°GirdlePavilion 41.58°CuletDepth 58.2%

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: $6,548 CAD|Low: $2,498 CAD|High: $6,663 CAD|Avg: $3,344 CAD|-1.7%
NZ Jewellers
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
November 5, 2026
Retailer 2$2,581 CAD
Retailer 3$2,653 CAD
Retailer 6$2,685 CAD
Retailer 7$2,725 CAD
Retailer 4$2,750 CAD
Retailer 5$2,809 CAD
NZ Jewellers$6,548 CAD

40 data points across 7 retailers

6 retailers$2,581 CAD to $6,548 CAD

A
Cheapest Retailer
-
$2,581 CAD
A
Retailer 2
-
$2,653 CAD
View
A
Retailer 3
-
$2,685 CAD
View
A
Retailer 4
-
$2,750 CAD
View
B+
Retailer 5
-
$2,809 CAD
View
Most Expensive
C
NZ Jewellers
1cedb843-b85c-42c6-83fc-f902cef6d3da · Nov 3
$6,548 CAD
$4,655 USD
View
5 more retailers have this diamond
Prices start from $2,581 CADSave up to $3,967 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
1.51ct Heart
$2,581 CAD