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Heart|Natural|GIA

1.51ct F SI2 Heart Natural Diamond

EX • F/SI2 • GIA 6542728816

Certificate GIA 6542728816

Diamond specifications and retailer prices

From $4,861 CAD
As of November 6, 2026
Save $5,335 CAD (52%) vs most expensive(unlock to see where)
16 retailers carry this diamond
Most expensive: $11,915 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 F colour (colourless) and SI2 clarity (slightly-included), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 6542728816. Listed at 16 retailers as of November 4, 2026, with a 110% 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
F
Color
SI2
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryVery Good
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 6542728816
Dimensions7.06 × 8.02 × 4.60 mm
L/W Ratio1.14
Top View
7.06 mm8.02 mm1.51 ctF / SI2
OriginNatural
CutExcellent
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateGIA 6542728816
Side View
Table 62.0%CrownGirdle: THN-VTKPavilionCulet: NoneDepth 57.4%

Caratlytics Score

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A
Excellent
Excellent quality and great value
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See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 6
Current: $11,915 CAD|Low: $4,806 CAD|High: $12,147 CAD|Avg: $7,262 CAD|-1.9%
Queensmith
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
November 6, 2026
Retailer 6$4,861 CAD
Retailer 2$5,172 CAD
Retailer 7$5,925 CAD
Retailer 9$6,176 CAD
Retailer 4$6,252 CAD
Retailer 3$6,320 CAD
Retailer 8$6,629 CAD
Retailer 5$10,196 CAD
Queensmith$11,915 CAD

41 data points across 9 retailers

16 retailers$4,861 CAD to $10,196 CAD

A
Cheapest Retailer
-
$4,861 CAD
A
Retailer 2
-
$5,172 CAD
View
A
Retailer 3
-
$5,925 CAD
View
Final sale: no returns
A
Retailer 4
-
$6,176 CAD
View
A
Retailer 5
-
$6,252 CAD
View
A
Retailer 6
-
$6,320 CAD
View
Retailer 7
-
$6,420 CAD
View
Price last confirmed 22 days ago
Retailer 8
-
$6,420 CAD
View
Price last confirmed 22 days ago
Retailer 9
-
$6,420 CAD
View
Price last confirmed 20 days ago
A
Retailer 10
-
$6,465 CAD
View
A
Retailer 11
-
$6,629 CAD
View
B+
Retailer 12
-
$6,818 CAD
View
Retailer 13
-
$7,407 CAD
View
Price last confirmed 19 days ago
B+
Retailer 14
-
$10,196 CAD
View
Retailer 15
-
$11,184 CAD
View
Price last confirmed 20 days ago
Most Expensive
Queensmith
6542728816 · Oct 28
$11,915 CAD
£6,670 GBP
View
Price last confirmed 9 days ago
15 more retailers have this diamond
Prices start from $4,861 CADSave up to $5,335 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
$4,861 CAD