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Cushion|Lab Grown|IGI

1.57ct E IF Cushion Lab Grown Diamond

EX • E/IF • IGI LG801688282

Shape and cutting style on the report: Cushion modified brilliant

Certificate IGI LG801688282

Diamond specifications and retailer prices

From £277 GBP
$371 USD
As of November 1, 2026
Save £1,611 GBP (85%) vs most expensive(unlock to see where)
21 retailers carry this diamond
Most expensive: £1,888 GBP at Brilliant Earth · As of October 31, 2026
View at Brilliant Earth

About this 1.57ct lab-grown cushion diamond

This 1.57ct lab-grown cushion sits in the one-and-a-half to two carat band, graded E colour (colourless) and IF clarity (flawless or internally-flawless), with a top-tier cut grade and certified by IGI LG801688282 or 801688282. Listed at 21 retailers as of October 31, 2026, with prices from £277 to £1,888, a £1,611 spread on the same certified stone. Brilliant Earth lists it at £1,888. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.57
Carat
E
Colour
IF
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle37.7°
Pavilion angle36.2°
OriginLab Grown
Grading LabIGI
CertificateIGI LG801688282
Dimensions7.30 × 6.42 × 4.24 mm
L/W Ratio1.14
Girdle conditionFaceted
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
7.30 mm6.42 mm1.57 ctE / IF
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG801688282
Side View
Table 60.0%Crown 37.7°Girdle: MED-THKPavilion 36.2°Culet: NoneDepth 66.0%

Caratlytics Score

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A
Excellent
Excellent quality and great value
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See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 1
Current: £1,888 GBP|Low: £277 GBP|High: £2,530 GBP|Avg: £1,359 GBP|-25.1%
Brilliant Earth
Retailer 2
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Retailer 20
November 1, 2026
Retailer 6£277 GBP
Retailer 13£316 GBP
Retailer 19£412 GBP
Retailer 15£489 GBP
Retailer 14£545 GBP
Retailer 17£556 GBP
Retailer 8£675 GBP
Retailer 16£759 GBP
Retailer 3£821 GBP
Retailer 5£975 GBP
Retailer 4£1,019 GBP
Retailer 18£1,076 GBP
Retailer 9£1,129 GBP
Retailer 7£1,194 GBP
Retailer 20£1,204 GBP
Retailer 2£1,229 GBP
Retailer 12£1,297 GBP
Retailer 10£1,543 GBP
Retailer 11£1,884 GBP
Brilliant Earth£1,888 GBP

32 data points across 20 retailers

21 retailers£277 GBP to £1,888 GBP

A
Cheapest Retailer
-
£277 GBP
$371 USD
Final sale: no returns
A
Retailer 2
-
£316 GBP
View
A
Retailer 3
-
£412 GBP
$552 USD
View
A
Retailer 4
-
£489 GBP
€624 EUR
View
A
Retailer 5
-
£545 GBP
View
A
Retailer 6
-
£556 GBP
$745 USD
View
Retailer 7
-
£620 GBP
$831 USD
View
Price last confirmed 15 days ago
A
Retailer 8
-
£675 GBP
$905 USD
View
A
Retailer 9
-
£759 GBP
$1,017 USD
View
A
Retailer 10
-
£821 GBP
$1,100 USD
View
A
Retailer 11
-
£975 GBP
$1,306 USD
View
A
Retailer 12
-
£1,019 GBP
$1,365 USD
View
A
Retailer 13
-
£1,076 GBP
$1,442 USD
View
Retailer 14
-
£1,129 GBP
ZAR 24,440 ZAR
View
Price last confirmed 8 days ago
B+
Retailer 15
-
£1,194 GBP
View
B+
Retailer 16
-
£1,204 GBP
$1,613 USD
View
B+
Retailer 17
-
£1,229 GBP
View
Retailer 18
-
£1,297 GBP
A$2,673 AUD
View
Price last confirmed 25 days ago
Retailer 19
-
£1,543 GBP
A$3,180 AUD
View
Price last confirmed 11 days ago
Retailer 20
-
£1,884 GBP
$2,525 USD
View
Price last confirmed 11 days ago
Most Expensive
B
Brilliant Earth
20240081A · Oct 31
£1,888 GBP
$2,530 USD
View
20 more retailers have this diamond
Prices start from £277 GBPSave up to £1,611 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.

A
1.57ct Cushion
£277 GBP