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Heart|Natural|GIA

1.50ct H SI2 Heart Natural Diamond

EX • H/SI2 • GIA 1548550988

Certificate GIA 1548550988

Diamond specifications and retailer prices

From $4,526 AUD
As of November 6, 2026
Save $5,391 AUD (54%) vs most expensive(unlock to see where)
18 retailers carry this diamond
Most expensive: $11,774 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 1548550988. Listed at 18 retailers as of November 2, 2026, with a 119% 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
FluorescenceFaint
OriginNatural
Grading LabGIA
CertificateGIA 1548550988
Dimensions7.82 × 7.30 × 4.64 mm
L/W Ratio1.07
Girdle conditionFaceted
Culet sizeNone
Key to symbols
Twinning Wisp, Feather, Crystal, Indented Natural, Needle
Top View
7.82 mm7.30 mm1.50 ctH / SI2
OriginNatural
CutExcellent
PolishVery Good
SymmetryExcellent
FluorescenceFaint
CertificateGIA 1548550988
Side View
Table 58.0%CrownGirdle: THN-THKPavilionCulet: NoneDepth 59.4%

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: $11,774 AUD|Low: $4,507 AUD|High: $12,181 AUD|Avg: $6,756 AUD|-3.0%
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 10$4,526 AUD
Retailer 2$4,777 AUD
Retailer 3$5,474 AUD
Retailer 5$5,699 AUD
Retailer 6$6,006 AUD
Retailer 7$6,049 AUD
Retailer 11$6,145 AUD
Retailer 9$6,171 AUD
Retailer 4$6,672 AUD
Retailer 8$9,917 AUD
Queensmith$11,774 AUD

31 data points across 11 retailers

18 retailers$4,526 AUD to $9,917 AUD

A
Cheapest Retailer
-
$4,526 AUD
A
Retailer 2
-
$4,777 AUD
View
A
Retailer 3
-
$5,474 AUD
View
Final sale: no returns
A
Retailer 4
-
$5,699 AUD
View
Retailer 5
-
$5,972 AUD
View
Price last confirmed 22 days ago
Retailer 6
-
$5,972 AUD
View
Price last confirmed 20 days ago
Retailer 7
-
$5,972 AUD
View
Price last confirmed 22 days ago
A
Retailer 8
-
$6,006 AUD
View
A
Retailer 9
-
$6,049 AUD
View
B+
Retailer 10
-
$6,145 AUD
View
B+
Retailer 11
-
$6,171 AUD
View
B+
Retailer 12
-
$6,257 AUD
View
B+
Retailer 13
-
$6,619 AUD
View
B+
Retailer 14
-
$6,672 AUD
View
Retailer 15
-
$6,890 AUD
View
Price last confirmed 19 days ago
B
Retailer 16
-
$9,917 AUD
View
Retailer 17
-
$10,403 AUD
View
Price last confirmed 20 days ago
Most Expensive
Queensmith
1548550988 · Oct 28
$11,774 AUD
£6,370 GBP
View
Price last confirmed 9 days ago
17 more retailers have this diamond
Prices start from $4,526 AUDSave up to $5,391 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
$4,526 AUD