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Heart|Natural|GIA

1.51ct I SI2 Heart Natural Diamond

VG • I/SI2 • GIA 2557140157

Certificate GIA 2557140157

Diamond specifications and retailer prices

From $4,571 CAD
$3,272 USD
As of November 1, 2026
Save $5,318 CAD (54%) vs most expensive(unlock to see where)
14 retailers carry this diamond
Most expensive: $10,840 CAD at NZ Jewellers · As of September 25, 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 very-good cut grade stated by the retailer rather than the lab and certified by GIA 2557140157. Listed at 14 retailers as of November 1, 2026, with a 116% 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

1.51
Carat
I
Color
SI2
Clarity
Very Good
Cut (retailer stated)

Specifications

Cut (retailer stated)Very Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 2557140157
Dimensions6.99 × 7.88 × 4.63 mm
L/W Ratio1.13
Top View
6.99 mm7.88 mm1.51 ctI / SI2
OriginNatural
CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 2557140157
Side View
Table 59.0%CrownGirdle: STK-VTKPavilionCulet: 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 1
Current: $4,613 CAD|Low: $4,516 CAD|High: $10,048 CAD|Avg: $6,243 CAD|-1.9%
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 2, 2026
Retailer 11$4,571 CAD
Retailer 1$4,613 CAD
Retailer 8$4,854 CAD
Retailer 6$5,009 CAD
Retailer 2$5,105 CAD
Retailer 4$5,127 CAD
Retailer 10$5,356 CAD
Retailer 9$5,532 CAD
Retailer 7$6,129 CAD
Retailer 5$8,004 CAD
Retailer 3$9,467 CAD
Retailer 12$9,889 CAD

35 data points across 12 retailers

14 retailers$4,571 CAD to $9,889 CAD

A
Cheapest Retailer
-
$4,571 CAD
$3,272 USD
A
Retailer 2
-
$4,613 CAD
HK$25,800 HKD
View
A
Retailer 3
-
$4,854 CAD
$3,475 USD
View
A
Retailer 4
-
$5,009 CAD
$3,586 USD
View
Final sale: no returns
A
Retailer 5
-
$5,105 CAD
$3,655 USD
View
A
Retailer 6
-
$5,127 CAD
$3,670 USD
View
A
Retailer 7
-
$5,356 CAD
A$5,899 AUD
View
A
Retailer 8
-
$5,532 CAD
$3,960 USD
View
B+
Retailer 9
-
$6,129 CAD
£3,455 GBP
View
B+
Retailer 10
-
$6,345 CAD
A$6,988 AUD
View
B
Retailer 11
-
$8,004 CAD
$5,730 USD
View
Retailer 12
-
$9,467 CAD
$6,777 USD
View
Price last confirmed 9 days ago
B
Retailer 13
-
$9,889 CAD
£5,574 GBP
View
Most Expensive
NZ Jewellers
d85614ba-f21d-4946-a9ce-9e008d9e8309 · Sep 25
$10,840 CAD
$7,760 USD
View
Price last confirmed 37 days ago
13 more retailers have this diamond
Prices start from $4,571 CADSave up to $5,318 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
$4,571 CAD