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Cushion|Natural|GIA

1.50ct E SI2 Cushion Natural Diamond

EX • E/SI2 • GIA 6555361215

Certificate GIA 6555361215

Diamond specifications and retailer prices

From $5,248 AUD
HK$28,800 HKD
As of October 31, 2026
Save $7,218 AUD (58%) vs most expensive(unlock to see where)
15 retailers carry this diamond
Most expensive: $12,466 AUD at Queensmith · As of October 28, 2026
View at Queensmith

About this 1.5ct natural cushion diamond

This 1.5ct natural cushion 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 6555361215. Listed at 15 retailers as of October 28, 2026, with prices from $5,248 to $12,466, a $7,218 spread on the same certified stone. Queensmith lists it at $12,466. 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
SymmetryVery Good
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 6555361215
Dimensions7.84 × 5.84 × 4.07 mm
L/W Ratio1.34
Girdle conditionFaceted
Culet sizeNone
Key to symbols
Crystal, Feather, Needle, Indented Natural
Top View
7.84 mm5.84 mm1.50 ctE / SI2
OriginNatural
CutExcellent
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateGIA 6555361215
Side View
Table 70.0%CrownGirdle: STK-VTKPavilionCulet: NoneDepth 69.7%

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: Oct 31
Current: $12,466 AUD|Low: $5,193 AUD|High: $12,547 AUD|Avg: $7,676 AUD|+1.8%
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
October 31, 2026
Retailer 2$5,248 AUD
Retailer 8$5,639 AUD
Retailer 5$6,173 AUD
Retailer 3$6,455 AUD
Retailer 9$6,609 AUD
Retailer 12$6,663 AUD
Retailer 7$6,953 AUD
Retailer 11$6,993 AUD
Retailer 4$7,208 AUD
Retailer 13$7,388 AUD
Retailer 6$7,913 AUD
Retailer 10$11,197 AUD
Queensmith$12,466 AUD

24 data points across 13 retailers

15 retailers$5,248 AUD to $12,466 AUD

A
Cheapest Retailer
-
$5,248 AUD
HK$28,800 HKD
A
Retailer 2
-
$5,639 AUD
₹377,248 INR
View
A
Retailer 3
-
$6,173 AUD
SGD 5,860 SGD
View
A
Retailer 4
-
$6,419 AUD
$4,509 USD
View
A
Retailer 5
-
$6,455 AUD
$4,534 USD
View
Final sale: no returns
A
Retailer 6
-
$6,609 AUD
£3,655 GBP
View
A
Retailer 7
-
$6,663 AUD
SGD 6,325 SGD
View
A
Retailer 8
-
$6,953 AUD
£3,846 GBP
View
A
Retailer 9
-
$6,957 AUD
View
A
Retailer 10
-
$6,993 AUD
$4,912 USD
View
A
Retailer 11
-
$7,208 AUD
$5,063 USD
View
A
Retailer 12
-
$7,388 AUD
$5,190 USD
View
A
Retailer 13
-
$7,913 AUD
€5,294 EUR
View
B+
Retailer 14
-
$11,197 AUD
£6,193 GBP
View
Most Expensive
B
Queensmith
6555361215 · Oct 28
$12,466 AUD
£6,895 GBP
View
14 more retailers have this diamond
Prices start from $5,248 AUDSave up to $7,218 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 Cushion
$5,248 AUD