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Heart|Natural|GIA

1.51ct I SI2 Heart Natural Diamond

EX • I/SI2 • GIA 6552596091

Certificate GIA 6552596091

Diamond specifications and retailer prices

From $4,005 CAD
HK$22,400 HKD
As of November 1, 2026
Save $1,505 CAD (27%) vs most expensive(unlock to see where)
13 retailers carry this diamond
Most expensive: $9,249 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 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 6552596091. Listed at 13 retailers as of November 1, 2026, with a 38% 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 6552596091
Dimensions7.07 × 8.05 × 4.73 mm
L/W Ratio1.14
Girdle conditionFaceted
Culet sizeNone
Key to symbols
Crystal, Feather, Cavity, Needle, Indented Natural
Top View
7.07 mm8.05 mm1.51 ctI / SI2
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 6552596091
Side View
Table 60.0%CrownGirdle: MED-THKPavilionCulet: NoneDepth 58.8%

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: $5,476 CAD|Low: $3,969 CAD|High: $9,803 CAD|Avg: $5,598 CAD|-0.7%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
November 2, 2026
Retailer 5$4,005 CAD
Retailer 4$4,275 CAD
Retailer 2$4,867 CAD
Retailer 7$5,071 CAD
Retailer 8$5,319 CAD
Retailer 1$5,476 CAD
Retailer 3$5,510 CAD
Retailer 6$8,890 CAD

46 data points across 8 retailers

13 retailers$4,005 CAD to $5,510 CAD

A
Cheapest Retailer
-
$4,005 CAD
HK$22,400 HKD
A
Retailer 2
-
$4,275 CAD
₹291,437 INR
View
A
Retailer 3
-
$4,867 CAD
$3,484 USD
View
Final sale: no returns
A
Retailer 4
-
$5,071 CAD
SGD 4,906 SGD
View
Retailer 5
-
$5,308 CAD
$3,800 USD
View
Price last confirmed 17 days ago
Retailer 6
-
$5,308 CAD
$3,800 USD
View
Price last confirmed 14 days ago
A
Retailer 7
-
$5,319 CAD
$3,808 USD
View
A
Retailer 8
-
$5,476 CAD
$3,920 USD
View
A
Retailer 9
-
$5,510 CAD
£3,106 GBP
View
Retailer 10
-
$5,512 CAD
$3,946 USD
View
Price last confirmed 16 days ago
Retailer 11
-
$6,125 CAD
$4,385 USD
View
Price last confirmed 14 days ago
Retailer 12
-
$8,890 CAD
£5,011 GBP
View
Price last confirmed 8 days ago
Most Expensive
NZ Jewellers
c725a9b8-881d-4e8d-8d4d-ccdb7f702b80 · Oct 18
$9,249 CAD
$6,621 USD
View
Price last confirmed 15 days ago
12 more retailers have this diamond
Prices start from $4,005 CADSave up to $1,505 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
$4,005 CAD