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Cushion|Lab Grown|GIA

1.53ct E SI1 Cushion Lab Grown Diamond

EX • E/SI1 • GIA 6452388672

Certificate GIA 6452388672

Diamond specifications and retailer prices

From $1,128 AUD
As of November 6, 2026
Save $1,751 AUD (61%) vs most expensive(unlock to see where)
6 retailers carry this diamond
Most expensive: $5,094 AUD at Do Amore Diamonds · As of November 2, 2026
View at Do Amore Diamonds

About this 1.53ct lab-grown cushion diamond

This 1.53ct lab-grown 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 6452388672. Listed at 6 retailers as of November 1, 2026, with a 155% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. 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

1.53
Carat
E
Colour
SI1
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
OriginLab Grown
Grading LabGIA
CertificateGIA 6452388672
Dimensions6.68 × 6.64 × 4.54 mm
L/W Ratio1.01
Culet sizeNone
Top View
6.68 mm6.64 mm1.53 ctE / SI1
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 6452388672
Side View
Table 57.0%CrownGirdle: STK-STKPavilionCulet: NoneDepth 68.4%

Caratlytics Score

How it works →
B+
Very Good
Strong quality and value balance
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 6
Current: $5,094 AUD|Low: $883 AUD|High: $5,094 AUD|Avg: $2,327 AUD
Do Amore Diamonds
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
November 7, 2026
Retailer 7$883 AUD
Retailer 4$924 AUD
Retailer 6$1,128 AUD
Retailer 2$1,870 AUD
Retailer 5$2,532 AUD
Retailer 3$2,879 AUD
Do Amore Diamonds$5,094 AUD

19 data points across 7 retailers

6 retailers$1,128 AUD to $2,879 AUD

Retailer 1
-
$924 AUD
Price last confirmed 4 days ago
B+
Retailer 2
-
$1,128 AUD
View
B
Retailer 3
-
$1,870 AUD
View
B
Retailer 4
-
$2,532 AUD
View
B
Retailer 5
-
$2,879 AUD
View
Most Expensive
Do Amore Diamonds
27-D1414A44F · Nov 2
$5,094 AUD
$3,500 USD
View
Price under review
5 more retailers have this diamond
Prices start from $1,128 AUDSave up to $1,751 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.

B+
1.53ct Cushion
$1,128 AUD