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Cushion|Lab Grown|IGI

3.03ct E SI1 Cushion Lab Grown Diamond

VG • E/SI1 • IGI LG840612390

Shape and cutting style on the report: Cushion modified brilliant

Certificate IGI LG840612390

Diamond specifications and retailer prices

From €424 EUR
HK$3,700 HKD
As of October 31, 2026
Save €1,885 EUR (82%) vs most expensive(unlock to see where)
10 retailers carry this diamond
Most expensive: €2,309 EUR at Brilliant Earth · As of October 31, 2026
View at Brilliant Earth

About this 3.03ct lab-grown cushion diamond

This 3.03ct 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 LG840612390 or 840612390. Listed at 10 retailers as of October 31, 2026, with prices from €424 to €2,309, a €1,885 spread on the same certified stone. Brilliant Earth lists it at €2,309. 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

3.03
Carat
E
Color
SI1
Clarity
Very Good
Cut

Specifications

CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle35.2°
Pavilion angle30.4°
OriginLab Grown
Grading LabIGI
CertificateIGI LG840612390
Dimensions10.37 × 7.37 × 4.65 mm
L/W Ratio1.41
Girdle conditionFaceted
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
10.37 mm7.37 mm3.03 ctE / SI1
OriginLab Grown
CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG840612390
Side View
Table 57.0%Crown 35.2°Girdle: MED-STKPavilion 30.4°Culet: NoneDepth 63.1%

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: €590 EUR|Low: €348 EUR|High: €1,781 EUR|Avg: €744 EUR|-0.8%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
October 31, 2026
Retailer 10€348 EUR
Retailer 5€424 EUR
Retailer 7€476 EUR
Retailer 9€586 EUR
Retailer 1€590 EUR
Retailer 8€622 EUR
Retailer 4€690 EUR
Retailer 2€892 EUR
Retailer 3€943 EUR
Retailer 6€1,763 EUR

24 data points across 10 retailers

10 retailers€424 EUR to €2,309 EUR

A
Cheapest Retailer
-
€424 EUR
HK$3,700 HKD
Retailer 2
-
€476 EUR
£418 GBP
View
Price last confirmed 15 days ago
B+
Retailer 3
-
€586 EUR
$655 USD
View
A
Retailer 4
-
€590 EUR
View
B
Retailer 5
-
€622 EUR
$695 USD
View
A
Retailer 6
-
€690 EUR
£607 GBP
View
B+
Retailer 7
-
€892 EUR
$996 USD
View
B+
Retailer 8
-
€943 EUR
$1,053 USD
View
B
Retailer 9
-
€1,763 EUR
$1,970 USD
View
Most Expensive
B
Brilliant Earth
21823147A · Oct 31
€2,309 EUR
$2,580 USD
View
9 more retailers have this diamond
Prices start from €424 EURSave up to €1,885 EUR

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
3.03ct Cushion
€424 EUR