Heart|Natural|GIA

1.51ct J SI2 Heart Natural Diamond

EX • J/SI2 • GIA 2235518191

Certificate GIA 2235518191

Diamond specifications and retailer prices

From $4,430 CAD
$3,171 USD
As of November 1, 2026
Save $5,024 CAD (53%) vs most expensive(unlock to see where)
17 retailers carry this diamond
Most expensive: $9,601 CAD at NZ Jewellers · As of September 30, 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 J 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 2235518191. Listed at 17 retailers as of October 29, 2026, with a 113% 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
J
Color
SI2
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishGood
SymmetryGood
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 2235518191
Dimensions7.29 × 7.67 × 4.09 mm
L/W Ratio1.05
Culet sizeNone
Top View
7.29 mm7.67 mm1.51 ctJ / SI2
OriginNatural
CutExcellent
PolishGood
SymmetryGood
FluorescenceNone
CertificateGIA 2235518191
Side View
Table 58.0%CrownGirdle: VTK-ETKPavilionCulet: NoneDepth 53.3%

Caratlytics Score

How it works →
B+
Very Good
Strong quality and value balance
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 1
Current: $5,752 CAD|Low: $3,619 CAD|High: $9,516 CAD|Avg: $5,452 CAD|+4.9%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
November 1, 2026
Retailer 11$3,619 CAD
Retailer 2$4,358 CAD
Retailer 8$4,430 CAD
Retailer 7$4,523 CAD
Retailer 6$4,702 CAD
Retailer 3$4,993 CAD
Retailer 9$5,188 CAD
Retailer 1$5,752 CAD
Retailer 4$6,364 CAD
Retailer 10$6,364 CAD
Retailer 5$9,454 CAD

42 data points across 11 retailers

17 retailers$4,430 CAD to $9,454 CAD

Retailer 1
-
$4,235 CAD
$3,032 USD
Price last confirmed 25 days ago
B+
Retailer 2
-
$4,430 CAD
$3,171 USD
View
B+
Retailer 3
-
$4,523 CAD
$3,238 USD
View
B+
Retailer 4
-
$4,702 CAD
$3,366 USD
View
Final sale: no returns
Retailer 5
-
$4,993 CAD
$3,574 USD
View
Price last confirmed 24 days ago
Retailer 6
-
$4,993 CAD
$3,574 USD
View
Price last confirmed 24 days ago
Retailer 7
-
$4,999 CAD
$3,579 USD
View
Price last confirmed 25 days ago
Retailer 8
-
$5,184 CAD
$3,711 USD
View
Price last confirmed 31 days ago
B+
Retailer 9
-
$5,188 CAD
$3,714 USD
View
B
Retailer 10
-
$5,752 CAD
£3,242 GBP
View
Retailer 11
-
$5,761 CAD
$4,124 USD
View
Price last confirmed 56 days ago
Retailer 12
-
$5,761 CAD
$4,124 USD
View
Price last confirmed 33 days ago
B
Retailer 13
-
$6,364 CAD
€4,339 EUR
View
Retailer 14
-
$6,364 CAD
$4,556 USD
View
Price last confirmed 9 days ago
Retailer 15
-
$7,963 CAD
$5,701 USD
View
Price last confirmed 24 days ago
C
Retailer 16
-
$9,454 CAD
£5,329 GBP
View
Most Expensive
NZ Jewellers
7a9a62d6-a97d-4169-b6cc-b6d427851887 · Sep 30
$9,601 CAD
$6,873 USD
View
Price last confirmed 32 days ago
16 more retailers have this diamond
Prices start from $4,430 CADSave up to $5,024 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.

B+
1.51ct Heart
$4,430 CAD