Heart|Natural|GIA

1.51ct E SI1 Heart Natural Diamond

EX • E/SI1 • GIA 6511530906

Certificate GIA 6511530906

Diamond specifications and retailer prices

From $7,432 CAD
£4,181 GBP
As of October 29, 2026
Save $6,729 CAD (48%) vs most expensive(unlock to see where)
9 retailers carry this diamond
Most expensive: $14,161 CAD at NZ Jewellers · As of October 27, 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 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 6511530906. Listed at 9 retailers as of October 27, 2026, with prices from $7,432 to $14,161, a $6,729 spread on the same certified stone. NZ Jewellers lists it at $14,161. 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 angle36.52°
Pavilion angle41.99°
OriginNatural
Grading LabGIA
CertificateGIA 6511530906
Dimensions6.98 × 8.02 × 4.83 mm
L/W Ratio1.15
Top View
6.98 mm8.02 mm1.51 ctE / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateGIA 6511530906
Side View
Table 61.0%Crown 36.52°Girdle: Slightly Thick to ThickPavilion 41.99°Culet: NDepth 60.2%

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: Oct 29
Current: $14,161 CAD|Low: $7,432 CAD|High: $14,161 CAD|Avg: $9,493 CAD
NZ Jewellers
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
October 29, 2026
Retailer 2$7,432 CAD
Retailer 6$7,793 CAD
Retailer 8$8,069 CAD
Retailer 3$8,281 CAD
Retailer 4$8,281 CAD
Retailer 9$8,370 CAD
Retailer 5$8,430 CAD
Retailer 7$12,266 CAD
NZ Jewellers$14,161 CAD

45 data points across 9 retailers

9 retailers$7,432 CAD to $14,161 CAD

A
Cheapest Retailer
-
$7,432 CAD
£4,181 GBP
A
Retailer 2
-
$7,793 CAD
£4,385 GBP
View
B+
Retailer 3
-
$8,069 CAD
$5,765 USD
View
A
Retailer 4
-
$8,281 CAD
$5,917 USD
View
A
Retailer 5
-
$8,281 CAD
$5,917 USD
View
A
Retailer 6
-
$8,370 CAD
A$9,201 AUD
View
Price last confirmed 19 days ago
B+
Retailer 7
-
$8,430 CAD
$6,023 USD
View
B+
Retailer 8
-
$12,266 CAD
£6,901 GBP
View
Most Expensive
B
NZ Jewellers
8134b5e0-c12e-4565-9ea7-62757ff29826 · Oct 27
$14,161 CAD
$10,118 USD
View
8 more retailers have this diamond
Prices start from $7,432 CADSave up to $6,729 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
$7,432 CAD