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Heart|Natural|GIA

1.51ct E SI1 Heart Natural Diamond

EX • E/SI1 • GIA 2436211625

Certificate GIA 2436211625

Diamond specifications and retailer prices

From $5,691 CAD
$4,066 USD
As of October 28, 2026
Save $6,832 CAD (55%) vs most expensive(unlock to see where)
19 retailers carry this diamond
Most expensive: $12,522 CAD at Queensmith · As of October 28, 2026
View at Queensmith

About this 1.51ct natural heart diamond

This 1.51ct natural heart sits in the one-and-a-half to two carat band, graded E colour (colourless) and SI1 clarity (slightly-included), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 2436211625. Listed at 19 retailers as of October 28, 2026, with prices from $5,691 to $12,522, a $6,832 spread on the same certified stone. Queensmith lists it at $12,522. 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
E
Color
SI1
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryVery Good
FluorescenceNone
Crown angle38.11°
Pavilion angle31.22°
OriginNatural
Grading LabGIA
CertificateGIA 2436211625
Dimensions6.51 × 6.17 × 4.30 mm
L/W Ratio1.06
Top View
6.51 mm6.17 mm1.51 ctE / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateGIA 2436211625
Side View
Table 60.0%Crown 38.11°Girdle: ThickPavilion 31.22°Culet: NoneDepth 69.7%

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: Oct 28
Current: $12,522 CAD|Low: $5,520 CAD|High: $12,567 CAD|Avg: $7,738 CAD|+2.5%
Queensmith
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
Retailer 13
Retailer 14
October 30, 2026
Retailer 5$5,691 CAD
Retailer 13$5,915 CAD
Retailer 14$6,021 CAD
Retailer 6$6,127 CAD
Retailer 4$6,165 CAD
Retailer 12$6,524 CAD
Retailer 2$6,758 CAD
Retailer 8$6,904 CAD
Retailer 7$7,188 CAD
Retailer 3$7,260 CAD
Retailer 10$8,137 CAD
Retailer 11$8,769 CAD
Retailer 9$11,531 CAD
Queensmith$12,522 CAD

35 data points across 14 retailers

19 retailers$5,691 CAD to $12,522 CAD

A
Cheapest Retailer
-
$5,691 CAD
$4,066 USD
A
Retailer 2
-
$5,915 CAD
$4,226 USD
View
A
Retailer 3
-
$6,021 CAD
$4,302 USD
View
Final sale: no returns
A
Retailer 4
-
$6,127 CAD
$4,378 USD
View
A
Retailer 5
-
$6,165 CAD
$4,405 USD
View
A
Retailer 6
-
$6,476 CAD
$4,627 USD
View
A
Retailer 7
-
$6,524 CAD
$4,661 USD
View
A
Retailer 8
-
$6,758 CAD
£3,802 GBP
View
A
Retailer 9
-
$6,904 CAD
$4,933 USD
View
A
Retailer 10
-
$7,040 CAD
$5,030 USD
View
A
Retailer 11
-
$7,040 CAD
$5,030 USD
View
A
Retailer 12
-
$7,188 CAD
£4,044 GBP
View
Retailer 13
-
$7,260 CAD
A$7,980 AUD
View
Price last confirmed 20 days ago
A
Retailer 14
-
$7,278 CAD
$5,200 USD
View
Retailer 15
-
$7,948 CAD
$5,679 USD
View
Price last confirmed 15 days ago
A
Retailer 16
-
$8,137 CAD
€5,537 EUR
View
B+
Retailer 17
-
$8,769 CAD
ZAR 101,217 ZAR
View
B+
Retailer 18
-
$11,531 CAD
£6,487 GBP
View
Most Expensive
B
Queensmith
2436211625 · Oct 28
$12,522 CAD
£7,045 GBP
View
18 more retailers have this diamond
Prices start from $5,691 CADSave up to $6,832 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
$5,691 CAD