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Heart|Natural|GIA

1.51ct K SI2 Heart Natural Diamond

EX • K/SI2 • GIA 7518024011

Certificate GIA 7518024011

Diamond specifications and retailer prices

From $3,258 CAD
As of November 6, 2026
Save $3,819 CAD (54%) vs most expensive(unlock to see where)
14 retailers carry this diamond
Most expensive: $7,441 CAD at NZ Jewellers · As of October 18, 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 K colour (faint-tinted) and SI2 clarity (slightly-included), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 7518024011. Listed at 14 retailers as of November 4, 2026, with a 117% 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
K
Color
SI2
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 7518024011
Dimensions7.00 × 7.97 × 4.64 mm
L/W Ratio1.14
Girdle conditionFaceted
Culet sizeNone
Key to symbols
Twinning Wisp
Top View
7.00 mm7.97 mm1.51 ctK / SI2
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 7518024011
Side View
Table 62.0%CrownGirdle: STK-THKPavilionCulet: NoneDepth 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 6
Current: $3,462 CAD|Low: $3,258 CAD|High: $7,517 CAD|Avg: $4,512 CAD|-6.0%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
November 6, 2026
Retailer 7$3,258 CAD
Retailer 1$3,462 CAD
Retailer 4$3,982 CAD
Retailer 9$4,193 CAD
Retailer 8$4,443 CAD
Retailer 3$4,493 CAD
Retailer 2$4,536 CAD
Retailer 6$4,600 CAD
Retailer 5$7,077 CAD

44 data points across 9 retailers

14 retailers$3,258 CAD to $7,077 CAD

A
Cheapest Retailer
-
$3,258 CAD
A
Retailer 2
-
$3,462 CAD
View
A
Retailer 3
-
$3,982 CAD
View
A
Retailer 4
-
$4,193 CAD
View
Retailer 5
-
$4,272 CAD
View
Price last confirmed 19 days ago
Retailer 6
-
$4,272 CAD
View
Price last confirmed 21 days ago
Retailer 7
-
$4,435 CAD
View
Price last confirmed 21 days ago
A
Retailer 8
-
$4,443 CAD
View
A
Retailer 9
-
$4,493 CAD
View
B+
Retailer 10
-
$4,536 CAD
View
B+
Retailer 11
-
$4,600 CAD
View
Retailer 12
-
$4,929 CAD
View
Price last confirmed 18 days ago
B
Retailer 13
-
$7,077 CAD
View
Most Expensive
NZ Jewellers
bfe540df-00e2-4027-9cf9-2241629007fc · Oct 18
$7,441 CAD
$5,290 USD
View
Price last confirmed 19 days ago
13 more retailers have this diamond
Prices start from $3,258 CADSave up to $3,819 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
$3,258 CAD