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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 $1,711 USD
As of November 4, 2026
Save $2,868 USD (63%) vs most expensive(unlock to see where)
10 retailers carry this diamond
Most expensive: $4,579 USD 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 $1,711 to $4,579, a $2,868 spread on the same certified stone. NZ Jewellers lists it at $4,579. 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
Color
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: $4,579 USD|Low: $1,711 USD|High: $4,913 USD|Avg: $2,296 USD
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$1,711 USD
Retailer 5$1,878 USD
Retailer 6$1,878 USD
Retailer 2$1,895 USD
Retailer 10$1,964 USD
Retailer 9$2,015 USD
Retailer 3$2,038 USD
Retailer 8$2,166 USD
Retailer 4$2,546 USD
NZ Jewellers$4,579 USD

44 data points across 10 retailers

10 retailers$1,711 USD to $4,579 USD

A
Cheapest Retailer
-
$1,711 USD
A
Retailer 2
-
$1,878 USD
View
Retailer 3
-
$1,878 USD
View
Price last confirmed 8 days ago
A
Retailer 4
-
$1,895 USD
View
B+
Retailer 5
-
$1,964 USD
View
A
Retailer 6
-
$2,015 USD
View
A
Retailer 7
-
$2,038 USD
View
A
Retailer 8
-
$2,166 USD
View
B+
Retailer 9
-
$2,546 USD
View
Most Expensive
B
NZ Jewellers
99d9a3c3-9351-4950-8825-9db039e73134 · Nov 5
$4,579 USD
View
9 more retailers have this diamond
Prices start from $1,711 USDSave up to $2,868 USD

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
$1,711 USD