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Cushion|Lab Grown|IGI

1.06ct E IF Cushion Lab Grown Diamond

EX • E/IF • IGI LG620421792

Shape and cutting style on the report: Cushion modified brilliant

Certificate IGI LG620421792

Diamond specifications and retailer prices

From £333 GBP
$446 USD
As of October 30, 2026
Save £1,115 GBP (77%) vs most expensive(unlock to see where)
18 retailers carry this diamond
Most expensive: £1,448 GBP at Brilliant Earth · As of October 31, 2026
View at Brilliant Earth

About this 1.06ct lab-grown cushion diamond

This 1.06ct lab-grown cushion sits in the classic one-carat band, graded E colour (colourless) and IF clarity (flawless or internally-flawless), with a top-tier cut grade and certified by IGI LG620421792 or 620421792. Listed at 18 retailers as of October 30, 2026, with prices from £333 to £1,448, a £1,115 spread on the same certified stone. Brilliant Earth lists it at £1,448. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.06
Carat
E
Colour
IF
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle34.8°
Pavilion angle38.4°
OriginLab Grown
Grading LabIGI
CertificateIGI LG620421792
Dimensions7.03 × 5.54 × 3.65 mm
L/W Ratio1.27
Girdle conditionFaceted
Culet sizePointed
Cert comments
As Grown - No indication of post-growth treatment This Laboratory Grown Diamond was created by High Pressure High Temperature (HPHT) growth process Type II
Top View
7.03 mm5.54 mm1.06 ctE / IF
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG620421792
Side View
Table 61.0%Crown 34.8°Girdle: THN-MEDPavilion 38.4°Culet: NoneDepth 65.9%

Caratlytics Score

How it works →
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: Oct 30
Current: £1,448 GBP|Low: £333 GBP|High: £1,463 GBP|Avg: £671 GBP|-1.0%
Brilliant Earth
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
Retailer 13
October 31, 2026
Retailer 4£333 GBP
Retailer 12£359 GBP
Retailer 11£382 GBP
Retailer 7£470 GBP
Retailer 13£481 GBP
Retailer 5£528 GBP
Retailer 2£574 GBP
Retailer 10£617 GBP
Retailer 6£651 GBP
Retailer 3£788 GBP
Retailer 8£875 GBP
Retailer 9£1,410 GBP
Brilliant Earth£1,448 GBP

42 data points across 13 retailers

18 retailers£333 GBP to £1,448 GBP

A
Cheapest Retailer
-
£333 GBP
$446 USD
Final sale: no returns
A
Retailer 2
-
£359 GBP
$481 USD
View
Retailer 3
-
£382 GBP
View
Price last confirmed 14 days ago
A
Retailer 4
-
£470 GBP
$630 USD
View
A
Retailer 5
-
£481 GBP
$645 USD
View
A
Retailer 6
-
£504 GBP
$675 USD
View
A
Retailer 7
-
£528 GBP
$707 USD
View
A
Retailer 8
-
£574 GBP
€733 EUR
View
A
Retailer 9
-
£617 GBP
ZAR 13,357 ZAR
View
B+
Retailer 10
-
£651 GBP
View
Retailer 11
-
£788 GBP
$1,056 USD
View
Price last confirmed 26 days ago
Retailer 12
-
£854 GBP
A$1,760 AUD
View
Price last confirmed 145 days ago
B+
Retailer 13
-
£875 GBP
A$1,804 AUD
View
Retailer 14
-
£1,046 GBP
View
Price last confirmed 27 days ago
B
Retailer 15
-
£1,182 GBP
$1,584 USD
View
B
Retailer 16
-
£1,314 GBP
$1,760 USD
View
B
Retailer 17
-
£1,410 GBP
View
Most Expensive
B
Brilliant Earth
11259141A · Oct 31
£1,448 GBP
$1,940 USD
View
17 more retailers have this diamond
Prices start from £333 GBPSave up to £1,115 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
1.06ct Cushion
£333 GBP