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Cushion|Lab Grown|IGI

1.02ct E IF Cushion Lab Grown Diamond

ID • E/IF • IGI LG689562159

Shape and cutting style on the report: Cushion modified brilliant

Certificate IGI LG689562159

Diamond specifications and retailer prices

From £265 GBP
$353 USD
As of October 30, 2026
Save £1,102 GBP (81%) vs most expensive(unlock to see where)
18 retailers carry this diamond
Most expensive: £1,367 GBP at Brilliant Earth · As of October 29, 2026
View at Brilliant Earth

About this 1.02ct lab-grown cushion diamond

This 1.02ct 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 LG689562159 or 689562159. Listed at 18 retailers as of October 29, 2026, with prices from £265 to £1,367, a £1,102 spread on the same certified stone. Brilliant Earth lists it at £1,367. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.02
Carat
E
Colour
IF
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle38.2°
Pavilion angle37°
OriginLab Grown
Grading LabIGI
CertificateIGI LG689562159
Dimensions6.54 × 5.38 × 3.67 mm
L/W Ratio1.22
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
6.54 mm5.38 mm1.02 ctE / IF
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG689562159
Side View
Table 62.0%Crown 38.2°Girdle: MED-STKPavilion 37°Culet: NoneDepth 68.2%

Caratlytics Score

How it works →
A
Excellent
Excellent quality and great value
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Oct 30
Current: £1,367 GBP|Low: £263 GBP|High: £1,367 GBP|Avg: £651 GBP|+1.7%
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
Retailer 14
Retailer 15
Retailer 16
October 30, 2026
Retailer 2£265 GBP
Retailer 3£294 GBP
Retailer 14£447 GBP
Retailer 15£459 GBP
Retailer 16£473 GBP
Retailer 5£478 GBP
Retailer 13£505 GBP
Retailer 9£524 GBP
Retailer 10£545 GBP
Retailer 12£718 GBP
Retailer 8£757 GBP
Retailer 4£762 GBP
Retailer 7£980 GBP
Retailer 6£1,174 GBP
Retailer 11£1,185 GBP
Brilliant Earth£1,367 GBP

40 data points across 16 retailers

18 retailers£265 GBP to £1,367 GBP

A
Cheapest Retailer
-
£265 GBP
$353 USD
Final sale: no returns
A
Retailer 2
-
£294 GBP
$392 USD
View
A
Retailer 3
-
£447 GBP
$595 USD
View
A
Retailer 4
-
£459 GBP
$611 USD
View
A
Retailer 5
-
£473 GBP
$630 USD
View
A
Retailer 6
-
£478 GBP
$637 USD
View
A
Retailer 7
-
£505 GBP
ZAR 10,874 ZAR
View
A
Retailer 8
-
£524 GBP
View
A
Retailer 9
-
£545 GBP
€691 EUR
View
B+
Retailer 10
-
£718 GBP
A$1,470 AUD
View
Retailer 11
-
£757 GBP
A$1,551 AUD
View
Price last confirmed 25 days ago
B+
Retailer 12
-
£762 GBP
$1,015 USD
View
B
Retailer 13
-
£980 GBP
$1,305 USD
View
Retailer 14
-
£1,001 GBP
$1,333 USD
View
Price last confirmed 81 days ago
B
Retailer 15
-
£1,109 GBP
$1,477 USD
View
B
Retailer 16
-
£1,174 GBP
$1,564 USD
View
B
Retailer 17
-
£1,185 GBP
View
Most Expensive
B
Brilliant Earth
15976567A · Oct 29
£1,367 GBP
$1,820 USD
View
17 more retailers have this diamond
Prices start from £265 GBPSave up to £1,102 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
1.02ct Cushion
£265 GBP