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Cushion|Natural|GIA

1.50ct E SI1 Cushion Natural Diamond

EX • E/SI1 • GIA 7542750439

Certificate GIA 7542750439

Diamond specifications and retailer prices

From $7,324 AUD
HK$40,200 HKD
As of October 29, 2026
Save $7,400 AUD (50%) vs most expensive(unlock to see where)
18 retailers carry this diamond
Most expensive: $14,724 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 SI1 clarity (slightly-included), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 7542750439. Listed at 18 retailers as of October 28, 2026, with prices from $7,324 to $14,724, a $7,400 spread on the same certified stone. Queensmith lists it at $14,724. 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
SI1
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryExcellent
FluorescenceFaint
OriginNatural
Grading LabGIA
CertificateGIA 7542750439
Dimensions7.63 × 5.86 × 4.03 mm
L/W Ratio1.30
Girdle conditionFaceted
Culet sizeNone
Key to symbols
Crystal, Feather, Indented Natural, Natural
Top View
7.63 mm5.86 mm1.50 ctE / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceFaint
CertificateGIA 7542750439
Side View
Table 66.0%CrownGirdle: THK-VTKPavilionCulet: NoneDepth 68.7%

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 29
Current: $14,724 AUD|Low: $7,324 AUD|High: $14,841 AUD|Avg: $10,140 AUD|+1.3%
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
October 29, 2026
Retailer 11$7,324 AUD
Retailer 7$7,904 AUD
Retailer 10$8,229 AUD
Retailer 5$8,705 AUD
Retailer 12$9,002 AUD
Retailer 4$9,056 AUD
Retailer 2$9,324 AUD
Retailer 13$9,565 AUD
Retailer 6$9,621 AUD
Retailer 14$9,980 AUD
Retailer 8$10,640 AUD
Retailer 9$11,875 AUD
Retailer 3$14,444 AUD
Queensmith$14,724 AUD

30 data points across 14 retailers

18 retailers$7,324 AUD to $14,724 AUD

A
Cheapest Retailer
-
$7,324 AUD
HK$40,200 HKD
A
Retailer 2
-
$7,904 AUD
₹528,815 INR
View
A
Retailer 3
-
$8,229 AUD
$5,781 USD
View
Retailer 4
-
$8,482 AUD
SGD 8,053 SGD
View
Price last confirmed 16 days ago
A
Retailer 5
-
$8,705 AUD
SGD 8,264 SGD
View
B+
Retailer 6
-
$9,002 AUD
$6,324 USD
View
Final sale: no returns
B+
Retailer 7
-
$9,050 AUD
$6,358 USD
View
B+
Retailer 8
-
$9,053 AUD
$6,360 USD
View
Retailer 9
-
$9,056 AUD
$6,362 USD
View
Price last confirmed 14 days ago
B+
Retailer 10
-
$9,324 AUD
£5,158 GBP
View
B+
Retailer 11
-
$9,565 AUD
$6,720 USD
View
Retailer 12
-
$9,621 AUD
View
Price last confirmed 26 days ago
B+
Retailer 13
-
$9,980 AUD
$7,011 USD
View
B+
Retailer 14
-
$10,240 AUD
View
B+
Retailer 15
-
$10,640 AUD
€7,119 EUR
View
B+
Retailer 16
-
$11,875 AUD
ZAR 134,781 ZAR
View
B
Retailer 17
-
$14,444 AUD
£7,990 GBP
View
Most Expensive
B
Queensmith
7542750439 · Oct 28
$14,724 AUD
£8,145 GBP
View
17 more retailers have this diamond
Prices start from $7,324 AUDSave up to $7,400 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
$7,324 AUD