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Heart|Natural|GIA

1.51ct J SI2 Heart Natural Diamond

EX • J/SI2 • GIA 7443324770

Certificate GIA 7443324770

Diamond specifications and retailer prices

From $3,541 AUD
$2,488 USD
As of October 31, 2026
Save $4,219 AUD (54%) vs most expensive(unlock to see where)
18 retailers carry this diamond
Most expensive: $7,760 AUD at MOH London · As of October 29, 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 J 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 7443324770. Listed at 18 retailers as of October 29, 2026, with prices from $3,541 to $7,760, a $4,219 spread on the same certified stone. MOH London lists it at $7,760. 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
J
Colour
SI2
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 7443324770
Dimensions6.66 × 6.48 × 4.39 mm
L/W Ratio1.03
Top View
6.66 mm6.48 mm1.51 ctJ / SI2
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 7443324770
Side View
Table 62.0%CrownGirdle: STK-THKPavilionCulet: NoneDepth 67.7%

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: Oct 31
Current: $7,760 AUD|Low: $3,027 AUD|High: $7,812 AUD|Avg: $4,631 AUD|+0.4%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
November 2, 2026
Retailer 4$3,632 AUD
Retailer 7$3,730 AUD
Retailer 5$3,859 AUD
Retailer 6$4,181 AUD
Retailer 3$4,823 AUD
Retailer 2$5,078 AUD
MOH London$7,760 AUD

44 data points across 7 retailers

18 retailers$3,541 AUD to $7,760 AUD

A
Cheapest Retailer
-
$3,541 AUD
$2,488 USD
A
Retailer 2
-
$3,632 AUD
$2,551 USD
View
A
Retailer 3
-
$3,699 AUD
$2,598 USD
View
A
Retailer 4
-
$3,730 AUD
$2,620 USD
View
A
Retailer 5
-
$3,744 AUD
$2,630 USD
View
A
Retailer 6
-
$3,859 AUD
$2,711 USD
View
Final sale: no returns
A
Retailer 7
-
$4,181 AUD
$2,937 USD
View
Retailer 8
-
$4,184 AUD
$2,939 USD
View
Price last confirmed 10 days ago
A
Retailer 9
-
$4,221 AUD
$2,965 USD
View
B+
Retailer 10
-
$4,540 AUD
$3,189 USD
View
B+
Retailer 11
-
$4,669 AUD
$3,280 USD
View
B+
Retailer 12
-
$4,755 AUD
$3,340 USD
View
B+
Retailer 13
-
$4,755 AUD
$3,340 USD
View
B+
Retailer 14
-
$4,823 AUD
£2,668 GBP
View
B+
Retailer 15
-
$4,911 AUD
$3,450 USD
View
B+
Retailer 16
-
$5,078 AUD
€3,397 EUR
View
B
Retailer 17
-
$6,659 AUD
$4,677 USD
View
Most Expensive
B
MOH London
FE14F1F2E · Oct 29
$7,760 AUD
£4,292 GBP
View
17 more retailers have this diamond
Prices start from $3,541 AUDSave up to $4,219 AUD

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
$3,541 AUD