Heart|Natural|GIA

1.51ct H IF Heart Natural Diamond

EX • H/IF • GIA 1553780704

Certificate GIA 1553780704

Diamond specifications and retailer prices

From $5,507 USD
As of November 2, 2026
Save $3,619 USD (40%) vs most expensive(unlock to see where)
7 retailers carry this diamond
Most expensive: $9,126 USD at MOH London · As of November 2, 2026
View at MOH London

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 IF clarity (flawless or internally-flawless), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 1553780704. Listed at 7 retailers as of November 2, 2026, with prices from $5,507 to $9,126, a $3,619 spread on the same certified stone. MOH London lists it at $9,126. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.51
Carat
H
Color
IF
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryExcellent
FluorescenceStrong
Crown angle39.61°
Pavilion angle40.04°
OriginNatural
Grading LabGIA
CertificateGIA 1553780704
Dimensions7.00 × 7.99 × 4.57 mm
L/W Ratio1.14
Girdle conditionVery Thick
Top View
7.00 mm7.99 mm1.51 ctH / IF
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceStrong
CertificateGIA 1553780704
Side View
Table 63.0%Crown 39.61°GirdlePavilion 40.04°CuletDepth 57.2%

Caratlytics Score

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

Last verified: Nov 2
Current: $9,126 USD|Low: $5,507 USD|High: $9,426 USD|Avg: $6,616 USD|-2.0%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
November 2, 2026
Retailer 2$5,507 USD
Retailer 5$5,765 USD
Retailer 6$5,930 USD
Retailer 3$6,194 USD
Retailer 4$6,194 USD
Retailer 7$6,218 USD
Retailer 8$6,923 USD
MOH London$9,126 USD

39 data points across 8 retailers

7 retailers$5,507 USD to $9,126 USD

A
Cheapest Retailer
-
$5,507 USD
A
Retailer 2
-
$5,765 USD
View
A
Retailer 3
-
$5,930 USD
View
A
Retailer 4
-
$6,194 USD
View
A
Retailer 5
-
$6,194 USD
View
Retailer 6
-
$6,218 USD
View
Price last confirmed 26 days ago
Most Expensive
B
MOH London
14B8112E5 · Nov 2
$9,126 USD
£7,186 GBP
View
6 more retailers have this diamond
Prices start from $5,507 USDSave up to $3,619 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
$5,507 USD