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Cushion|Natural|GIA

1.50ct G SI2 Cushion Natural Diamond

ID • G/SI2 • GIA 6542270416

Certificate GIA 6542270416

Diamond specifications and retailer prices

From $3,106 AUD
As of November 6, 2026
Save $1,333 AUD (30%) vs most expensive(unlock to see where)
5 retailers carry this diamond
Most expensive: $4,439 AUD at Brilliant Earth · As of November 6, 2026
View at Brilliant Earth

About this 1.5ct natural cushion diamond

This 1.5ct natural cushion sits in the one-and-a-half to two carat band, graded G 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 6542270416. Listed at 5 retailers as of November 6, 2026, with prices from $3,106 to $4,439, a $1,333 spread on the same certified stone. Brilliant Earth lists it at $4,439. 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
G
Colour
SI2
Clarity
Ideal
Cut (retailer stated)

Specifications

Cut (retailer stated)Ideal
PolishExcellent
SymmetryVery Good
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 6542270416
Dimensions6.52 × 6.14 × 4.26 mm
L/W Ratio1.06
Top View
6.52 mm6.14 mm1.50 ctG / SI2
OriginNatural
CutIdeal
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateGIA 6542270416
Side View
Table 58.0%CrownGirdle: THK-VTKPavilionCulet: NoneDepth 69.4%

Caratlytics Score

How it works →
A
Excellent
Excellent quality and great value
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Price History

Last verified: Nov 6
Current: $4,439 AUD|Low: $3,106 AUD|High: $4,977 AUD|Avg: $3,890 AUD|-10.8%
Brilliant Earth
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
October 17, 2026
Retailer 2$3,106 AUD
Retailer 4$3,157 AUD
Retailer 5$3,589 AUD
Retailer 3$3,649 AUD
Retailer 6$4,094 AUD
Brilliant Earth$4,439 AUD

13 data points across 6 retailers

5 retailers$3,106 AUD to $4,439 AUD

A
Cheapest Retailer
-
$3,106 AUD
A
Retailer 2
-
$3,157 AUD
View
A
Retailer 3
-
$3,649 AUD
View
A
Retailer 4
-
$4,094 AUD
View
Most Expensive
A
Brilliant Earth
18008257A · Nov 6
$4,439 AUD
$3,050 USD
View
4 more retailers have this diamond
Prices start from $3,106 AUDSave up to $1,333 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
$3,106 AUD