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Cushion|Lab Grown|IGI

3.04ct E SI1 Cushion Lab Grown Diamond

VG • E/SI1 • IGI LG745516607

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

Certificate IGI LG745516607

Diamond specifications and retailer prices

From £657 GBP
$880 USD
As of October 31, 2026
Save £3,067 GBP (82%) vs most expensive(unlock to see where)
6 retailers carry this diamond
Most expensive: £3,724 GBP at Do Amore Diamonds · As of October 31, 2026
View at Do Amore Diamonds

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 SI1 clarity (slightly-included), with a very-good cut grade and certified by IGI LG745516607 or 745516607. Listed at 6 retailers as of October 31, 2026, with prices from £657 to £3,724, a £3,067 spread on the same certified stone. Do Amore Diamonds lists it at £3,724. Cut grade matters more than carat or clarity for visible brilliance. If you can shift budget toward an Excellent or Ideal cut, do it before chasing higher colour or clarity.

The 4Cs

3.04
Carat
E
Colour
SI1
Clarity
Very Good
Cut

Specifications

CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle39.3°
Pavilion angle40.2°
OriginLab Grown
Grading LabIGI
CertificateIGI LG745516607
Dimensions8.32 × 8.18 × 5.69 mm
L/W Ratio1.02
Girdle conditionFaceted
Culet sizePointed
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
8.32 mm8.18 mm3.04 ctE / SI1
OriginLab Grown
CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG745516607
Side View
Table 63.0%Crown 39.3°Girdle: MED-THKPavilion 40.2°Culet: NoneDepth 69.6%

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 31
Current: £3,724 GBP|Low: £619 GBP|High: £3,724 GBP|Avg: £1,533 GBP|+5.7%
Do Amore Diamonds
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
October 25, 2026
Retailer 4£657 GBP
Retailer 5£725 GBP
Retailer 7£901 GBP
Retailer 6£1,008 GBP
Retailer 3£1,467 GBP
Retailer 2£2,263 GBP
Do Amore Diamonds£3,724 GBP

13 data points across 7 retailers

6 retailers£657 GBP to £3,724 GBP

A
Cheapest Retailer
-
£657 GBP
$880 USD
B+
Retailer 2
-
£725 GBP
$972 USD
View
B
Retailer 3
-
£1,467 GBP
$1,965 USD
View
B
Retailer 4
-
£2,263 GBP
View
B
Retailer 5
-
£3,523 GBP
$4,720 USD
View
Most Expensive
C
Do Amore Diamonds
27-52D46BF23 · Oct 31
£3,724 GBP
$4,990 USD
View
5 more retailers have this diamond
Prices start from £657 GBPSave up to £3,067 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
£657 GBP