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Heart|Natural|GIA

1.50ct H SI2 Heart Natural Diamond

EX • H/SI2 • GIA 1548774511

Certificate GIA 1548774511

Diamond specifications and retailer prices

From $4,452 AUD
As of November 6, 2026
Save $5,327 AUD (54%) vs most expensive(unlock to see where)
17 retailers carry this diamond
Most expensive: $11,709 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 1548774511. Listed at 17 retailers as of November 2, 2026, with a 120% 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
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishVery Good
SymmetryExcellent
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 1548774511
Dimensions6.78 × 7.79 × 4.79 mm
L/W Ratio1.15
Girdle conditionFaceted
Culet sizeNone
Key to symbols
Twinning Wisp, Feather, Crystal, Indented Natural, Natural
Top View
6.78 mm7.79 mm1.50 ctH / SI2
OriginNatural
CutExcellent
PolishVery Good
SymmetryExcellent
FluorescenceNone
CertificateGIA 1548774511
Side View
Table 60.0%CrownGirdle: THN-VTKPavilionCulet: NoneDepth 61.5%

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: $11,709 AUD|Low: $4,452 AUD|High: $12,144 AUD|Avg: $6,820 AUD|-3.3%
Queensmith
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 12$4,452 AUD
Retailer 2$4,713 AUD
Retailer 14$5,397 AUD
Retailer 7$5,621 AUD
Retailer 3$5,889 AUD
Retailer 4$5,889 AUD
Retailer 8$5,923 AUD
Retailer 9$6,012 AUD
Retailer 13$6,062 AUD
Retailer 11$6,098 AUD
Retailer 6$6,795 AUD
Retailer 10$9,779 AUD
Retailer 5$10,259 AUD
Queensmith$11,709 AUD

34 data points across 14 retailers

17 retailers$4,452 AUD to $9,779 AUD

A
Cheapest Retailer
-
$4,452 AUD
A
Retailer 2
-
$4,713 AUD
View
A
Retailer 3
-
$5,397 AUD
View
Final sale: no returns
A
Retailer 4
-
$5,621 AUD
View
Retailer 5
-
$5,889 AUD
View
Price last confirmed 22 days ago
Retailer 6
-
$5,889 AUD
View
Price last confirmed 20 days ago
Retailer 7
-
$5,889 AUD
View
Price last confirmed 22 days ago
A
Retailer 8
-
$5,923 AUD
View
A
Retailer 9
-
$6,012 AUD
View
B+
Retailer 10
-
$6,062 AUD
View
B+
Retailer 11
-
$6,098 AUD
View
B+
Retailer 12
-
$6,217 AUD
View
B+
Retailer 13
-
$6,581 AUD
View
Retailer 14
-
$6,795 AUD
View
Price last confirmed 19 days ago
B
Retailer 15
-
$9,779 AUD
View
Retailer 16
-
$10,259 AUD
View
Price last confirmed 20 days ago
Most Expensive
Queensmith
1548774511 · Oct 28
$11,709 AUD
£6,335 GBP
View
Price last confirmed 9 days ago
16 more retailers have this diamond
Prices start from $4,452 AUDSave up to $5,327 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
$4,452 AUD