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Cushion|Lab Grown|IGI

1.10ct E IF Cushion Lab Grown Diamond

ID • E/IF • IGI LG803659467

Shape and cutting style on the report: Square cushion modified brilliant

Certificate IGI LG803659467

Diamond specifications and retailer prices

From £267 GBP
$358 USD
As of October 31, 2026
Save £1,054 GBP (80%) vs most expensive(unlock to see where)
17 retailers carry this diamond
Most expensive: £1,321 GBP at Brilliant Earth · As of October 31, 2026
View at Brilliant Earth

About this 1.1ct lab-grown cushion diamond

This 1.1ct 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 LG803659467 or 803659467. Listed at 17 retailers as of October 31, 2026, with prices from £267 to £1,321, a £1,054 spread on the same certified stone. Brilliant Earth lists it at £1,321. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.10
Carat
E
Colour
IF
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle35.6°
Pavilion angle39.4°
OriginLab Grown
Grading LabIGI
CertificateIGI LG803659467
Dimensions6.02 × 5.94 × 3.92 mm
L/W Ratio1.01
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
6.02 mm5.94 mm1.10 ctE / IF
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG803659467
Side View
Table 63.0%Crown 35.6°Girdle: STK-THKPavilion 39.4°Culet: NoneDepth 66.0%

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 31
Current: £1,321 GBP|Low: £246 GBP|High: £1,321 GBP|Avg: £727 GBP|+1.1%
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
Retailer 17
October 31, 2026
Retailer 10£267 GBP
Retailer 8£281 GBP
Retailer 7£425 GBP
Retailer 2£470 GBP
Retailer 14£481 GBP
Retailer 5£482 GBP
Retailer 13£516 GBP
Retailer 11£525 GBP
Retailer 4£684 GBP
Retailer 12£746 GBP
Retailer 9£800 GBP
Retailer 16£987 GBP
Retailer 6£1,108 GBP
Retailer 3£1,130 GBP
Retailer 17£1,149 GBP
Retailer 15£1,178 GBP
Brilliant Earth£1,321 GBP

31 data points across 17 retailers

17 retailers£267 GBP to £1,321 GBP

A
Cheapest Retailer
-
£267 GBP
$358 USD
Final sale: no returns
A
Retailer 2
-
£281 GBP
$376 USD
View
A
Retailer 3
-
£425 GBP
$570 USD
View
A
Retailer 4
-
£470 GBP
€600 EUR
View
A
Retailer 5
-
£481 GBP
$644 USD
View
A
Retailer 6
-
£482 GBP
ZAR 10,431 ZAR
View
A
Retailer 7
-
£516 GBP
$692 USD
View
A
Retailer 8
-
£525 GBP
View
B+
Retailer 9
-
£684 GBP
A$1,410 AUD
View
B+
Retailer 10
-
£746 GBP
$1,000 USD
View
Retailer 11
-
£800 GBP
A$1,650 AUD
View
Price last confirmed 23 days ago
B+
Retailer 12
-
£987 GBP
$1,323 USD
View
Retailer 13
-
£1,108 GBP
$1,485 USD
View
Price last confirmed 13 days ago
B+
Retailer 14
-
£1,130 GBP
View
B
Retailer 15
-
£1,149 GBP
View
B
Retailer 16
-
£1,178 GBP
$1,578 USD
View
Most Expensive
B
Brilliant Earth
20185427A · Oct 31
£1,321 GBP
$1,770 USD
View
16 more retailers have this diamond
Prices start from £267 GBPSave up to £1,054 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
1.10ct Cushion
£267 GBP