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Cushion|Natural|GIA

1.50ct E SI2 Cushion Natural Diamond

ID • E/SI2 • GIA 1553328108

Certificate GIA 1553328108

Diamond specifications and retailer prices

From $5,922 AUD
HK$32,500 HKD
As of October 29, 2026
Save $7,348 AUD (55%) vs most expensive(unlock to see where)
16 retailers carry this diamond
Most expensive: $13,271 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 1553328108. Listed at 16 retailers as of October 28, 2026, with prices from $5,922 to $13,271, a $7,348 spread on the same certified stone. Queensmith lists it at $13,271. 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
Ideal
Cut (retailer stated)

Specifications

Cut (retailer stated)Ideal
PolishExcellent
SymmetryVery Good
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 1553328108
Dimensions7.60 × 5.83 × 4.10 mm
L/W Ratio1.30
Girdle conditionFaceted
Culet sizeNone
Key to symbols
Twinning Wisp, Crystal, Indented Natural, Needle
Top View
7.60 mm5.83 mm1.50 ctE / SI2
OriginNatural
CutIdeal
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateGIA 1553328108
Side View
Table 62.0%CrownGirdle: MED-VTKPavilionCulet: NoneDepth 70.3%

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: $13,271 AUD|Low: $5,922 AUD|High: $13,361 AUD|Avg: $8,392 AUD|+2.0%
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 13$5,922 AUD
Retailer 10$6,406 AUD
Retailer 3$7,027 AUD
Retailer 6$7,043 AUD
Retailer 14$7,364 AUD
Retailer 7$7,561 AUD
Retailer 12$7,608 AUD
Retailer 2$7,760 AUD
Retailer 4$7,958 AUD
Retailer 11$7,978 AUD
Retailer 5$8,198 AUD
Retailer 9$9,015 AUD
Retailer 8$12,775 AUD
Queensmith$13,271 AUD

24 data points across 14 retailers

16 retailers$5,922 AUD to $13,271 AUD

A
Cheapest Retailer
-
$5,922 AUD
HK$32,500 HKD
A
Retailer 2
-
$6,406 AUD
₹428,546 INR
View
A
Retailer 3
-
$7,027 AUD
$4,936 USD
View
A
Retailer 4
-
$7,043 AUD
SGD 6,686 SGD
View
A
Retailer 5
-
$7,323 AUD
$5,144 USD
View
A
Retailer 6
-
$7,364 AUD
$5,173 USD
View
Final sale: no returns
A
Retailer 7
-
$7,561 AUD
£4,182 GBP
View
A
Retailer 8
-
$7,608 AUD
SGD 7,222 SGD
View
A
Retailer 9
-
$7,760 AUD
£4,292 GBP
View
A
Retailer 10
-
$7,958 AUD
$5,590 USD
View
A
Retailer 11
-
$7,978 AUD
$5,604 USD
View
A
Retailer 12
-
$8,039 AUD
View
A
Retailer 13
-
$8,198 AUD
$5,759 USD
View
B+
Retailer 14
-
$9,015 AUD
€6,031 EUR
View
B+
Retailer 15
-
$12,775 AUD
£7,066 GBP
View
Most Expensive
B
Queensmith
1553328108 · Oct 28
$13,271 AUD
£7,340 GBP
View
15 more retailers have this diamond
Prices start from $5,922 AUDSave up to $7,348 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
$5,922 AUD