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Heart|Natural|GIA

1.50ct H SI2 Heart Natural Diamond

ID • H/SI2 • GIA 1525627848

Certificate GIA 1525627848

Diamond specifications and retailer prices

From $4,359 AUD
As of November 6, 2026
Save $5,113 AUD (54%) vs most expensive(unlock to see where)
18 retailers carry this diamond
Most expensive: $11,525 AUD at Queensmith · As of October 28, 2026
View at Queensmith

About this 1.5ct natural heart diamond

This 1.5ct natural heart sits in the one-and-a-half to two carat band, graded H 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 1525627848. Listed at 18 retailers as of November 1, 2026, with a 117% 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
H
Colour
SI2
Clarity
Ideal
Cut (retailer stated)

Specifications

Cut (retailer stated)Ideal
PolishExcellent
SymmetryVery Good
FluorescenceFaint
OriginNatural
Grading LabGIA
CertificateGIA 1525627848
Dimensions7.89 × 7.22 × 4.55 mm
L/W Ratio1.09
Girdle conditionFaceted
Culet sizeNone
Key to symbols
Twinning Wisp, Feather, Crystal, Natural
Top View
7.89 mm7.22 mm1.50 ctH / SI2
OriginNatural
CutIdeal
PolishExcellent
SymmetryVery Good
FluorescenceFaint
CertificateGIA 1525627848
Side View
Table 61.0%CrownGirdle: STK-THKPavilionCulet: NoneDepth 57.7%

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: $11,525 AUD|Low: $4,321 AUD|High: $11,820 AUD|Avg: $6,443 AUD|-2.1%
Queensmith
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
November 6, 2026
Retailer 9$4,359 AUD
Retailer 2$4,617 AUD
Retailer 11$5,228 AUD
Retailer 5$5,501 AUD
Retailer 7$5,717 AUD
Retailer 6$5,737 AUD
Retailer 10$5,877 AUD
Retailer 3$5,923 AUD
Retailer 4$6,373 AUD
Retailer 8$9,472 AUD
Queensmith$11,525 AUD

34 data points across 11 retailers

18 retailers$4,359 AUD to $9,472 AUD

A
Cheapest Retailer
-
$4,359 AUD
A
Retailer 2
-
$4,617 AUD
View
A
Retailer 3
-
$5,228 AUD
View
Final sale: no returns
A
Retailer 4
-
$5,501 AUD
View
A
Retailer 5
-
$5,717 AUD
View
A
Retailer 6
-
$5,737 AUD
View
A
Retailer 7
-
$5,877 AUD
View
A
Retailer 8
-
$5,912 AUD
View
A
Retailer 9
-
$5,923 AUD
View
B+
Retailer 10
-
$6,270 AUD
View
Retailer 11
-
$6,357 AUD
View
Price last confirmed 30 days ago
Retailer 12
-
$6,357 AUD
View
Price last confirmed 30 days ago
Retailer 13
-
$6,357 AUD
View
Price last confirmed 37 days ago
A
Retailer 14
-
$6,373 AUD
View
Retailer 15
-
$7,335 AUD
View
Price last confirmed 39 days ago
B+
Retailer 16
-
$9,472 AUD
View
Retailer 17
-
$11,076 AUD
View
Price last confirmed 38 days ago
Most Expensive
Queensmith
1525627848 · Oct 28
$11,525 AUD
£6,235 GBP
View
Price last confirmed 9 days ago
17 more retailers have this diamond
Prices start from $4,359 AUDSave up to $5,113 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
$4,359 AUD