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Cushion|Lab Grown|IGI

3.04ct E IF Cushion Lab Grown Diamond

ID • E/IF • IGI LG851607893

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

Certificate IGI LG851607893

Diamond specifications and retailer prices

From £882 GBP
$1,182 USD
As of October 31, 2026
Save £4,984 GBP (85%) vs most expensive(unlock to see where)
13 retailers carry this diamond
Most expensive: £5,866 GBP at Brilliant Earth · As of October 31, 2026
View at Brilliant Earth

About this 3.04ct lab-grown cushion diamond

This 3.04ct lab-grown cushion sits in the three to five carat band, graded E colour (colourless) and IF clarity (flawless or internally-flawless), with a top-tier cut grade and certified by IGI LG851607893 or 851607893. Listed at 13 retailers as of October 31, 2026, with prices from £882 to £5,866, a £4,984 spread on the same certified stone. Brilliant Earth lists it at £5,866. Lab-grown prices in the 2ct and up range have fallen 40 to 60% over the last 18 months. Use the cross-retailer spread above to find the lowest current listing.

The 4Cs

3.04
Carat
E
Colour
IF
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle31.5°
Pavilion angle30.8°
OriginLab Grown
Grading LabIGI
CertificateIGI LG851607893
Dimensions8.49 × 8.37 × 4.91 mm
L/W Ratio1.01
Girdle conditionFaceted
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
8.49 mm8.37 mm3.04 ctE / IF
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG851607893
Side View
Table 57.0%Crown 31.5°Girdle: STK-THKPavilion 30.8°Culet: NoneDepth 58.7%

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: £5,866 GBP|Low: £882 GBP|High: £5,866 GBP|Avg: £1,852 GBP
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 13£882 GBP
Retailer 9£1,009 GBP
Retailer 8£1,030 GBP
Retailer 5£1,060 GBP
Retailer 3£1,308 GBP
Retailer 7£1,324 GBP
Retailer 6£1,456 GBP
Retailer 2£2,064 GBP
Retailer 10£2,122 GBP
Retailer 12£2,713 GBP
Retailer 4£3,065 GBP
Retailer 11£3,116 GBP
Brilliant Earth£5,866 GBP

6 data points across 13 retailers

13 retailers£882 GBP to £5,866 GBP

A
Cheapest Retailer
-
£882 GBP
$1,182 USD
Final sale: no returns
A
Retailer 2
-
£1,009 GBP
View
A
Retailer 3
-
£1,030 GBP
$1,380 USD
View
A
Retailer 4
-
£1,060 GBP
HK$11,100 HKD
View
A
Retailer 5
-
£1,308 GBP
$1,752 USD
View
A
Retailer 6
-
£1,324 GBP
View
A
Retailer 7
-
£1,456 GBP
€1,858 EUR
View
A
Retailer 8
-
£2,064 GBP
A$4,255 AUD
View
A
Retailer 9
-
£2,122 GBP
ZAR 45,941 ZAR
View
A
Retailer 10
-
£2,713 GBP
$3,635 USD
View
B+
Retailer 11
-
£3,065 GBP
SGD 5,549 SGD
View
B+
Retailer 12
-
£3,116 GBP
View
Most Expensive
B
Brilliant Earth
22315500A · Oct 31
£5,866 GBP
$7,860 USD
View
12 more retailers have this diamond
Prices start from £882 GBPSave up to £4,984 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
3.04ct Cushion
£882 GBP