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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 £579 GBP
As of November 6, 2026
Save £899 GBP (61%) vs most expensive(unlock to see where)
6 retailers carry this diamond
Most expensive: £2,615 GBP 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
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See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 6
Current: £2,615 GBP|Low: £453 GBP|High: £2,615 GBP|Avg: £1,194 GBP
Do Amore Diamonds
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
November 7, 2026
Retailer 7£453 GBP
Retailer 4£474 GBP
Retailer 6£579 GBP
Retailer 2£960 GBP
Retailer 5£1,300 GBP
Retailer 3£1,478 GBP
Do Amore Diamonds£2,615 GBP

19 data points across 7 retailers

6 retailers£579 GBP to £1,478 GBP

Retailer 1
-
£474 GBP
Price last confirmed 4 days ago
B+
Retailer 2
-
£579 GBP
View
B
Retailer 3
-
£960 GBP
View
B
Retailer 4
-
£1,300 GBP
View
B
Retailer 5
-
£1,478 GBP
View
Most Expensive
Do Amore Diamonds
27-D1414A44F · Nov 2
£2,615 GBP
$3,500 USD
View
Price under review
5 more retailers have this diamond
Prices start from £579 GBPSave up to £899 GBP

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
£579 GBP