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Heart|Natural|GIA

1.50ct E SI2 Heart Natural Diamond

EX • E/SI2 • GIA 7551151543

Certificate GIA 7551151543

Diamond specifications and retailer prices

From $5,303 AUD
HK$29,100 HKD
As of October 28, 2026
Save $7,236 AUD (58%) vs most expensive(unlock to see where)
15 retailers carry this diamond
Most expensive: $12,538 AUD at Queensmith · As of October 25, 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 E colour (colourless) and SI2 clarity (slightly-included), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 7551151543. Listed at 15 retailers as of October 25, 2026, with prices from $5,303 to $12,538, a $7,236 spread on the same certified stone. Queensmith lists it at $12,538. 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
E
Colour
SI2
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryExcellent
FluorescenceFaint
OriginNatural
Grading LabGIA
CertificateGIA 7551151543
Dimensions7.20 × 8.18 × 4.63 mm
L/W Ratio1.14
Girdle conditionFaceted
Culet sizeNone
Key to symbols
Feather, Crystal, Needle, Knot
Top View
7.20 mm8.18 mm1.50 ctE / SI2
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceFaint
CertificateGIA 7551151543
Side View
Table 63.0%CrownGirdle: STK-THKPavilionCulet: NoneDepth 56.6%

Caratlytics Score

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

Price History

Last verified: Oct 28
Current: $12,538 AUD|Low: $5,303 AUD|High: $12,629 AUD|Avg: $7,813 AUD|+1.2%
Queensmith
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
October 26, 2026
Retailer 8$5,303 AUD
Retailer 6$5,741 AUD
Retailer 7$6,435 AUD
Retailer 9$6,591 AUD
Retailer 4$6,691 AUD
Retailer 3$6,805 AUD
Retailer 2$7,013 AUD
Retailer 10$7,141 AUD
Retailer 12$7,357 AUD
Retailer 11$8,240 AUD
Retailer 5$11,388 AUD
Queensmith$12,538 AUD

40 data points across 12 retailers

15 retailers$5,303 AUD to $12,538 AUD

A
Cheapest Retailer
-
$5,303 AUD
HK$29,100 HKD
Retailer 2
-
$5,741 AUD
₹384,091 INR
View
Price last confirmed 14 days ago
A
Retailer 3
-
$6,435 AUD
SGD 6,108 SGD
View
A
Retailer 4
-
$6,691 AUD
$4,700 USD
View
A
Retailer 5
-
$6,805 AUD
SGD 6,460 SGD
View
A
Retailer 6
-
$7,013 AUD
£3,879 GBP
View
A
Retailer 7
-
$7,049 AUD
View
Retailer 8
-
$7,141 AUD
$5,016 USD
View
Price last confirmed 14 days ago
Retailer 9
-
$7,141 AUD
$5,016 USD
View
Price last confirmed 13 days ago
Retailer 10
-
$7,141 AUD
$5,016 USD
View
Price last confirmed 12 days ago
A
Retailer 11
-
$7,357 AUD
$5,168 USD
View
Retailer 12
-
$8,240 AUD
$5,788 USD
View
Price last confirmed 11 days ago
B
Retailer 13
-
$11,388 AUD
£6,299 GBP
View
Retailer 14
-
$12,441 AUD
$8,739 USD
View
Price last confirmed 12 days ago
Most Expensive
B
Queensmith
7551151543 · Oct 25
$12,538 AUD
£6,935 GBP
View
14 more retailers have this diamond
Prices start from $5,303 AUDSave up to $7,236 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
$5,303 AUD