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Heart|Natural|GIA

1.51ct D SI2 Heart Natural Diamond

ID • D/SI2 • GIA 2231718566

Certificate GIA 2231718566

Diamond specifications and retailer prices

From $6,293 CAD
£3,548 GBP
As of October 30, 2026
Save $5,308 CAD (46%) vs most expensive(unlock to see where)
6 retailers carry this diamond
Most expensive: $11,601 CAD at NZ Jewellers · As of October 30, 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 D 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 2231718566. Listed at 6 retailers as of October 30, 2026, with prices from $6,293 to $11,601, a $5,308 spread on the same certified stone. NZ Jewellers lists it at $11,601. 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
D
Color
SI2
Clarity
Ideal
Cut (retailer stated)

Specifications

Cut (retailer stated)Ideal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle37.42°
Pavilion angle42.37°
OriginNatural
Grading LabGIA
CertificateGIA 2231718566
Dimensions6.75 × 8.02 × 4.94 mm
L/W Ratio1.19
Girdle conditionThick
Key to symbols
Crystal, Feather, Knot, Needle
Top View
6.75 mm8.02 mm1.51 ctD / SI2
OriginNatural
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 2231718566
Side View
Table 61.0%Crown 37.42°Girdle: STK-THKPavilion 42.37°Culet: NoneDepth 61.6%

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 30
Current: $11,601 CAD|Low: $6,156 CAD|High: $11,684 CAD|Avg: $7,949 CAD|-0.7%
NZ Jewellers
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
October 30, 2026
Retailer 8$6,156 CAD
Retailer 2$6,293 CAD
Retailer 5$6,659 CAD
Retailer 6$6,659 CAD
Retailer 7$6,845 CAD
Retailer 9$7,128 CAD
Retailer 11$7,722 CAD
Retailer 3$8,326 CAD
Retailer 10$8,333 CAD
Retailer 4$10,662 CAD
NZ Jewellers$11,601 CAD

30 data points across 11 retailers

6 retailers$6,293 CAD to $11,601 CAD

A
Cheapest Retailer
-
$6,293 CAD
£3,548 GBP
A
Retailer 2
-
$6,659 CAD
$4,767 USD
View
A
Retailer 3
-
$6,659 CAD
$4,767 USD
View
A
Retailer 4
-
$6,845 CAD
$4,900 USD
View
B+
Retailer 5
-
$10,662 CAD
£6,010 GBP
View
Most Expensive
B+
NZ Jewellers
70efa35e-7227-4311-82c0-9c3eb24d02ea · Oct 30
$11,601 CAD
$8,305 USD
View
5 more retailers have this diamond
Prices start from $6,293 CADSave up to $5,308 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
$6,293 CAD