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Heart|Natural|GIA

1.51ct I SI2 Heart Natural Diamond

EX • I/SI2 • GIA 2558582288

Certificate GIA 2558582288

Diamond specifications and retailer prices

From $4,148 CAD
HK$23,200 HKD
As of November 1, 2026
Save $5,033 CAD (55%) vs most expensive(unlock to see where)
13 retailers carry this diamond
Most expensive: $10,570 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 top-tier cut grade stated by the retailer rather than the lab and certified by GIA 2558582288. Listed at 13 retailers as of November 1, 2026, with a 121% 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 2558582288
Dimensions7.02 × 7.80 × 4.64 mm
L/W Ratio1.11
Girdle conditionFaceted
Top View
7.02 mm7.80 mm1.51 ctI / SI2
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 2558582288
Side View
Table 58.0%CrownGirdle: MED-THKPavilionCulet: NoneDepth 59.4%

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: $7,487 CAD|Low: $4,131 CAD|High: $10,007 CAD|Avg: $5,986 CAD|-3.9%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
November 2, 2026
Retailer 10$4,148 CAD
Retailer 9$4,185 CAD
Retailer 7$4,432 CAD
Retailer 2$4,501 CAD
Retailer 5$4,653 CAD
Retailer 8$5,210 CAD
Retailer 6$5,693 CAD
Retailer 4$6,298 CAD
Retailer 1$7,487 CAD
Retailer 3$8,687 CAD
Retailer 11$9,181 CAD

35 data points across 11 retailers

13 retailers$4,148 CAD to $9,181 CAD

A
Cheapest Retailer
-
$4,148 CAD
HK$23,200 HKD
A
Retailer 2
-
$4,185 CAD
$2,996 USD
View
A
Retailer 3
-
$4,432 CAD
$3,173 USD
View
A
Retailer 4
-
$4,501 CAD
$3,222 USD
View
A
Retailer 5
-
$4,653 CAD
$3,331 USD
View
Final sale: no returns
A
Retailer 6
-
$5,210 CAD
$3,730 USD
View
A
Retailer 7
-
$5,693 CAD
£3,209 GBP
View
B+
Retailer 8
-
$6,036 CAD
A$6,648 AUD
View
B+
Retailer 9
-
$6,298 CAD
€4,294 EUR
View
B+
Retailer 10
-
$7,487 CAD
$5,360 USD
View
B+
Retailer 11
-
$8,687 CAD
$6,219 USD
View
B
Retailer 12
-
$9,181 CAD
£5,175 GBP
View
Most Expensive
NZ Jewellers
79b6de24-c94c-44b2-a0a4-19c056c56763 · Sep 25
$10,570 CAD
$7,567 USD
View
Price last confirmed 37 days ago
12 more retailers have this diamond
Prices start from $4,148 CADSave up to $5,033 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
$4,148 CAD