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Heart|Natural|GIA

1.51ct J SI2 Heart Natural Diamond

EX • J/SI2 • GIA 1458052289

Certificate GIA 1458052289

Diamond specifications and retailer prices

From $5,445 AUD
$3,825 USD
As of November 1, 2026
Save $4,462 AUD (45%) vs most expensive(unlock to see where)
10 retailers carry this diamond
Most expensive: $9,908 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 1458052289. Listed at 10 retailers as of October 29, 2026, with prices from $5,445 to $9,908, a $4,462 spread on the same certified stone. MOH London lists it at $9,908. 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
FluorescenceFaint
OriginNatural
Grading LabGIA
CertificateGIA 1458052289
Dimensions6.58 × 6.58 × 4.50 mm
L/W Ratio1.00
Girdle conditionFaceted
Culet sizeNone
Key to symbols
Twinning Wisp, Feather, Crystal, Indented Natural, Needle
Top View
6.58 mm6.58 mm1.51 ctJ / SI2
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceFaint
CertificateGIA 1458052289
Side View
Table 63.0%CrownGirdle: MED-VTKPavilionCulet: NoneDepth 68.4%

Caratlytics Score

How it works →
B+
Very Good
Strong quality and value balance
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 1
Current: $9,908 AUD|Low: $4,682 AUD|High: $9,975 AUD|Avg: $6,501 AUD|-0.7%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
November 2, 2026
Retailer 6$5,445 AUD
Retailer 5$5,711 AUD
Retailer 7$5,720 AUD
Retailer 4$6,015 AUD
Retailer 2$6,118 AUD
Retailer 8$6,476 AUD
Retailer 3$7,002 AUD
MOH London$9,908 AUD

38 data points across 8 retailers

10 retailers$5,445 AUD to $9,908 AUD

B+
Cheapest Retailer
-
$5,445 AUD
$3,825 USD
B+
Retailer 2
-
$5,711 AUD
$4,012 USD
View
Final sale: no returns
B+
Retailer 3
-
$5,720 AUD
$4,018 USD
View
B+
Retailer 4
-
$5,918 AUD
$4,157 USD
View
B+
Retailer 5
-
$6,015 AUD
£3,327 GBP
View
B+
Retailer 6
-
$6,118 AUD
£3,384 GBP
View
B
Retailer 7
-
$6,399 AUD
$4,495 USD
View
B
Retailer 8
-
$6,476 AUD
View
B+
Retailer 9
-
$7,002 AUD
€4,684 EUR
View
Most Expensive
B
MOH London
1815B6933 · Oct 29
$9,908 AUD
£5,480 GBP
View
9 more retailers have this diamond
Prices start from $5,445 AUDSave up to $4,462 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.

B+
1.51ct Heart
$5,445 AUD