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Heart|Natural|GIA

1.51ct L SI2 Heart Natural Diamond

EX • L/SI2 • GIA 6421737922

Certificate GIA 6421737922

Diamond specifications and retailer prices

From $3,086 NZD
As of November 4, 2026
Save $5,174 NZD (63%) vs most expensive(unlock to see where)
10 retailers carry this diamond
Most expensive: $8,260 NZD at NZ Jewellers · As of November 5, 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 L colour (faint-tinted) and SI2 clarity (slightly-included), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 6421737922. Listed at 10 retailers as of November 4, 2026, with prices from $3,086 to $8,260, a $5,174 spread on the same certified stone. NZ Jewellers lists it at $8,260. 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
L
Colour
SI2
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 6421737922
Dimensions7.17 × 8.04 × 4.41 mm
L/W Ratio1.12
Top View
7.17 mm8.04 mm1.51 ctL / SI2
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 6421737922
Side View
Table 56.0%CrownGirdlePavilionCulet: NoneDepth 54.8%

Caratlytics Score

How it works →
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 4
Current: $8,260 NZD|Low: $3,086 NZD|High: $8,863 NZD|Avg: $4,141 NZD
NZ Jewellers
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
November 6, 2026
Retailer 7$3,086 NZD
Retailer 5$3,388 NZD
Retailer 6$3,388 NZD
Retailer 2$3,418 NZD
Retailer 10$3,543 NZD
Retailer 9$3,635 NZD
Retailer 3$3,676 NZD
Retailer 8$3,907 NZD
Retailer 4$4,593 NZD
NZ Jewellers$8,260 NZD

44 data points across 10 retailers

10 retailers$3,086 NZD to $8,260 NZD

A
Cheapest Retailer
-
$3,086 NZD
A
Retailer 2
-
$3,388 NZD
View
Retailer 3
-
$3,388 NZD
View
Price last confirmed 8 days ago
A
Retailer 4
-
$3,418 NZD
View
B+
Retailer 5
-
$3,543 NZD
View
A
Retailer 6
-
$3,635 NZD
View
A
Retailer 7
-
$3,676 NZD
View
A
Retailer 8
-
$3,907 NZD
View
B+
Retailer 9
-
$4,593 NZD
View
Most Expensive
B
NZ Jewellers
99d9a3c3-9351-4950-8825-9db039e73134 · Nov 5
$8,260 NZD
$4,579 USD
View
9 more retailers have this diamond
Prices start from $3,086 NZDSave up to $5,174 NZD

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
$3,086 NZD