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Heart|Natural|GIA

1.50ct G SI1 Heart Natural Diamond

ID • G/SI1 • GIA 5241026604

Certificate GIA 5241026604

Diamond specifications and retailer prices

From $4,545 AUD
As of November 6, 2026
Save $5,487 AUD (55%) vs most expensive(unlock to see where)
14 retailers carry this diamond
Most expensive: $11,939 AUD at NZ Jewellers · As of September 25, 2026
View at NZ Jewellers

About this 1.5ct natural heart diamond

This 1.5ct natural heart sits in the one-and-a-half to two carat band, graded G 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 5241026604. Listed at 14 retailers as of November 4, 2026, with a 121% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. 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

1.50
Carat
G
Colour
SI1
Clarity
Ideal
Cut (retailer stated)

Specifications

Cut (retailer stated)Ideal
PolishExcellent
SymmetryExcellent
FluorescenceFaint
OriginNatural
Grading LabGIA
CertificateGIA 5241026604
Dimensions6.91 × 7.71 × 4.91 mm
L/W Ratio1.12
Girdle conditionFaceted
Top View
6.91 mm7.71 mm1.50 ctG / SI1
OriginNatural
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceFaint
CertificateGIA 5241026604
Side View
Table 60.0%CrownGirdle: MED-VTKPavilionCulet: NoneDepth 63.7%

Caratlytics Score

How it works →
A
Excellent
Excellent quality and great value
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 6
Current: $11,939 AUD|Low: $4,452 AUD|High: $11,939 AUD|Avg: $7,092 AUD
NZ Jewellers
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
Retailer 13
Retailer 14
November 6, 2026
Retailer 14$4,545 AUD
Retailer 11$5,258 AUD
Retailer 12$5,477 AUD
Retailer 3$5,552 AUD
Retailer 5$5,625 AUD
Retailer 2$5,637 AUD
Retailer 8$5,683 AUD
Retailer 7$5,723 AUD
Retailer 6$6,862 AUD
Retailer 4$6,884 AUD
Retailer 9$7,341 AUD
Retailer 13$9,572 AUD
Retailer 10$10,032 AUD
NZ Jewellers$11,939 AUD

24 data points across 14 retailers

14 retailers$4,545 AUD to $10,032 AUD

A
Cheapest Retailer
-
$4,545 AUD
A
Retailer 2
-
$5,258 AUD
View
A
Retailer 3
-
$5,477 AUD
View
A
Retailer 4
-
$5,552 AUD
View
Final sale: no returns
A
Retailer 5
-
$5,625 AUD
View
A
Retailer 6
-
$5,637 AUD
View
A
Retailer 7
-
$5,683 AUD
View
A
Retailer 8
-
$5,723 AUD
View
Retailer 9
-
$6,862 AUD
View
Price last confirmed 41 days ago
A
Retailer 10
-
$6,884 AUD
View
A
Retailer 11
-
$7,341 AUD
View
B+
Retailer 12
-
$9,572 AUD
View
B+
Retailer 13
-
$10,032 AUD
View
Most Expensive
NZ Jewellers
e145b531-bfab-499f-97d3-2138a1bd81f1 · Sep 25
$11,939 AUD
$8,203 USD
View
Price last confirmed 42 days ago
13 more retailers have this diamond
Prices start from $4,545 AUDSave up to $5,487 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
1.50ct Heart
$4,545 AUD