CaratHunter
Plans
Heart|Natural|GIA

1.51ct I SI2 Heart Natural Diamond

EX • I/SI2 • GIA 2556424615

Certificate GIA 2556424615

Diamond specifications and retailer prices

From $4,737 CAD
$3,390 USD
As of November 1, 2026
Save $5,301 CAD (53%) vs most expensive(unlock to see where)
15 retailers carry this diamond
Most expensive: $11,114 CAD at NZ Jewellers · As of October 24, 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 I colour (near-colourless) and SI2 clarity (slightly-included), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 2556424615. Listed at 15 retailers as of November 1, 2026, with a 112% 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

1.51
Carat
I
Color
SI2
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 2556424615
Dimensions7.08 × 7.99 × 4.41 mm
L/W Ratio1.13
Girdle conditionFaceted
Top View
7.08 mm7.99 mm1.51 ctI / SI2
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 2556424615
Side View
Table 57.0%CrownGirdle: STK-VTKPavilionCulet: NoneDepth 55.1%

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 1
Current: $11,114 CAD|Low: $4,683 CAD|High: $11,383 CAD|Avg: $6,723 CAD|-2.4%
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
November 2, 2026
Retailer 14$4,737 CAD
Retailer 2$4,740 CAD
Retailer 11$4,994 CAD
Retailer 4$5,292 CAD
Retailer 6$5,296 CAD
Retailer 9$5,334 CAD
Retailer 13$5,543 CAD
Retailer 12$5,855 CAD
Retailer 10$6,090 CAD
Retailer 7$6,222 CAD
Retailer 8$8,091 CAD
Retailer 5$9,804 CAD
Retailer 3$10,038 CAD
NZ Jewellers$11,114 CAD

27 data points across 14 retailers

15 retailers$4,737 CAD to $10,038 CAD

A
Cheapest Retailer
-
$4,737 CAD
$3,390 USD
A
Retailer 2
-
$4,740 CAD
HK$26,500 HKD
View
A
Retailer 3
-
$4,994 CAD
$3,574 USD
View
A
Retailer 4
-
$5,292 CAD
$3,787 USD
View
A
Retailer 5
-
$5,296 CAD
$3,790 USD
View
A
Retailer 6
-
$5,334 CAD
$3,817 USD
View
Final sale: no returns
A
Retailer 7
-
$5,543 CAD
A$6,102 AUD
View
A
Retailer 8
-
$5,855 CAD
$4,190 USD
View
A
Retailer 9
-
$6,090 CAD
£3,431 GBP
View
B+
Retailer 10
-
$6,222 CAD
£3,506 GBP
View
B+
Retailer 11
-
$6,547 CAD
A$7,208 AUD
View
B+
Retailer 12
-
$8,091 CAD
$5,790 USD
View
Retailer 13
-
$9,804 CAD
$7,016 USD
View
Price last confirmed 9 days ago
B
Retailer 14
-
$10,038 CAD
£5,656 GBP
View
Most Expensive
NZ Jewellers
f9d93be4-a7b3-4f11-9949-bab1c55ecbc4 · Oct 24
$11,114 CAD
$7,953 USD
View
Price last confirmed 9 days ago
14 more retailers have this diamond
Prices start from $4,737 CADSave up to $5,301 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
$4,737 CAD