Heart|Natural|GIA

1.51ct H SI2 Heart Natural Diamond

EX • H/SI2 • GIA 6542747605

Certificate GIA 6542747605

Diamond specifications and retailer prices

From $3,041 USD
As of November 2, 2026
Save $2,600 USD (46%) vs most expensive(unlock to see where)
7 retailers carry this diamond
Most expensive: $5,641 USD 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 H colour (near-colourless) and SI2 clarity (slightly-included), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 6542747605. Listed at 7 retailers as of October 30, 2026, with prices from $3,041 to $5,641, a $2,600 spread on the same certified stone. NZ Jewellers lists it at $5,641. 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
H
Color
SI2
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle40°
Pavilion angle40.46°
OriginNatural
Grading LabGIA
CertificateGIA 6542747605
Dimensions6.77 × 7.96 × 4.74 mm
L/W Ratio1.18
Top View
6.77 mm7.96 mm1.51 ctH / SI2
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 6542747605
Side View
Table 61.0%Crown 40°Girdle: STK-VTKPavilion 40.46°Culet: NoneDepth 59.6%

Caratlytics Score

How it works →
A
Excellent
Excellent quality and great value
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Price History

Last verified: Nov 2
Current: $5,641 USD|Low: $3,041 USD|High: $5,743 USD|Avg: $3,945 USD|-1.8%
NZ Jewellers
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
November 2, 2026
Retailer 6$3,041 USD
Retailer 2$3,137 USD
Retailer 3$3,238 USD
Retailer 5$3,387 USD
Retailer 7$3,423 USD
Retailer 8$3,610 USD
Retailer 9$3,869 USD
Retailer 4$5,415 USD
NZ Jewellers$5,641 USD

27 data points across 9 retailers

7 retailers$3,041 USD to $5,641 USD

A
Cheapest Retailer
-
$3,041 USD
A
Retailer 2
-
$3,137 USD
£2,470 GBP
View
A
Retailer 3
-
$3,238 USD
View
A
Retailer 4
-
$3,387 USD
View
A
Retailer 5
-
$3,423 USD
View
B+
Retailer 6
-
$5,415 USD
£4,264 GBP
View
Most Expensive
B
NZ Jewellers
692890ae-d137-41e1-bb2d-cb407d6cb858 · Oct 30
$5,641 USD
View
6 more retailers have this diamond
Prices start from $3,041 USDSave up to $2,600 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
$3,041 USD