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Heart|Natural|GIA

1.50ct I SI1 Heart Natural Diamond

ID • I/SI1 • GIA 5241019812

Certificate GIA 5241019812

Diamond specifications and retailer prices

From $4,135 CAD
HK$23,000 HKD
As of October 29, 2026
Save $5,623 CAD (58%) vs most expensive(unlock to see where)
15 retailers carry this diamond
Most expensive: $11,211 CAD at NZ Jewellers · As of September 25, 2026
View at NZ Jewellers

About this 1.5ct natural heart diamond

This 1.5ct natural heart sits in the one-and-a-half to two carat band, graded I colour (near-colourless) and SI1 clarity (slightly-included), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 5241019812. Listed at 15 retailers as of October 29, 2026, with a 136% 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

1.50
Carat
I
Color
SI1
Clarity
Ideal
Cut (retailer stated)

Specifications

Cut (retailer stated)Ideal
PolishExcellent
SymmetryExcellent
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 5241019812
Dimensions6.52 × 7.77 × 4.94 mm
L/W Ratio1.19
Girdle conditionFaceted
Top View
6.52 mm7.77 mm1.50 ctI / SI1
OriginNatural
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 5241019812
Side View
Table 59.0%CrownGirdle: STK-VTKPavilionCulet: NoneDepth 63.5%

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: Oct 29
Current: $4,878 CAD|Low: $4,135 CAD|High: $10,374 CAD|Avg: $6,282 CAD|-7.8%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
October 29, 2026
Retailer 11$4,135 CAD
Retailer 1$4,878 CAD
Retailer 10$5,096 CAD
Retailer 7$5,218 CAD
Retailer 12$5,256 CAD
Retailer 6$5,345 CAD
Retailer 3$5,358 CAD
Retailer 2$6,223 CAD
Retailer 4$6,672 CAD
Retailer 8$7,068 CAD
Retailer 9$8,826 CAD
Retailer 5$9,758 CAD

32 data points across 12 retailers

15 retailers$4,135 CAD to $9,758 CAD

A
Cheapest Retailer
-
$4,135 CAD
HK$23,000 HKD
A
Retailer 2
-
$4,878 CAD
€3,307 EUR
View
A
Retailer 3
-
$5,096 CAD
$3,628 USD
View
A
Retailer 4
-
$5,218 CAD
$3,715 USD
View
A
Retailer 5
-
$5,256 CAD
SGD 5,056 SGD
View
A
Retailer 6
-
$5,259 CAD
$3,744 USD
View
Price last confirmed 27 days ago
A
Retailer 7
-
$5,345 CAD
£2,996 GBP
View
A
Retailer 8
-
$5,358 CAD
$3,814 USD
View
Final sale: no returns
A
Retailer 9
-
$6,223 CAD
$4,430 USD
View
B+
Retailer 10
-
$6,453 CAD
A$7,068 AUD
View
B+
Retailer 11
-
$6,672 CAD
A$7,307 AUD
View
Price last confirmed 19 days ago
B+
Retailer 12
-
$7,068 CAD
ZAR 81,282 ZAR
View
B+
Retailer 13
-
$8,826 CAD
$6,283 USD
View
B
Retailer 14
-
$9,758 CAD
£5,470 GBP
View
Most Expensive
B
NZ Jewellers
866873ad-59aa-4b49-ba40-dce63a4157de · Sep 25
$11,211 CAD
$7,981 USD
View
Price last confirmed 34 days ago
14 more retailers have this diamond
Prices start from $4,135 CADSave up to $5,623 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
1.50ct Heart
$4,135 CAD