Heart|Natural|GIA

1.56ct H SI1 Heart Natural Diamond

EX • H/SI1 • GIA 2544738463

Certificate GIA 2544738463

Diamond specifications and retailer prices

From $3,374 USD
As of November 6, 2026
Save $623 USD (16%) vs most expensive(unlock to see where)
7 retailers carry this diamond
Most expensive: $3,997 USD at Blue Nile · As of November 5, 2026
View at Blue Nile

About this 1.56ct natural heart diamond

This 1.56ct natural heart sits in the one-and-a-half to two carat band, graded H colour (near-colourless) and SI1 clarity (slightly-included), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 2544738463. Listed at 7 retailers as of November 5, 2026, with prices from $3,374 to $3,997, a $623 spread on the same certified stone. Blue Nile lists it at $3,997. 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

1.56
Carat
H
Color
SI1
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryExcellent
FluorescenceStrong
OriginNatural
Grading LabGIA
CertificateGIA 2544738463
Dimensions7.26 × 8.06 × 4.71 mm
L/W Ratio1.11
Top View
7.26 mm8.06 mm1.56 ctH / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceStrong
CertificateGIA 2544738463
Side View
Table 54.0%CrownGirdle: STK-THKPavilionCulet: NoneDepth 58.4%

Caratlytics Score

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A
Excellent
Excellent quality and great value
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Price History

Last verified: Nov 6
Current: $3,997 USD|Low: $3,083 USD|High: $4,811 USD|Avg: $3,757 USD|-16.9%
Blue Nile
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
November 6, 2026
Retailer 5$3,374 USD
Retailer 4$3,434 USD
Retailer 7$3,491 USD
Retailer 2$3,512 USD
Retailer 6$3,602 USD
Retailer 3$3,603 USD
Blue Nile$3,997 USD

42 data points across 7 retailers

7 retailers$3,374 USD to $3,997 USD

A
Cheapest Retailer
-
$3,374 USD
A
Retailer 2
-
$3,434 USD
View
Final sale: no returns
A
Retailer 3
-
$3,491 USD
View
A
Retailer 4
-
$3,512 USD
View
A
Retailer 5
-
$3,602 USD
View
A
Retailer 6
-
$3,603 USD
View
Most Expensive
A
Blue Nile
28420041 · Nov 5
$3,997 USD
View
6 more retailers have this diamond
Prices start from $3,374 USDSave up to $623 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
1.56ct Heart
$3,374 USD