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 $474 USD
HK$3,700 HKD
As of October 30, 2026
Save $2,106 USD (82%) vs most expensive(unlock to see where)
9 retailers carry this diamond
Most expensive: $2,580 USD at Brilliant Earth · As of October 29, 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 9 retailers as of October 29, 2026, with prices from $474 to $2,580, a $2,106 spread on the same certified stone. Brilliant Earth lists it at $2,580. 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 30
Current: $665 USD|Low: $389 USD|High: $1,990 USD|Avg: $832 USD
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
October 29, 2026
Retailer 8$389 USD
Retailer 3$474 USD
Retailer 5$531 USD
Retailer 7$655 USD
Retailer 1$665 USD
Retailer 6$695 USD
Retailer 2$771 USD
Retailer 9$996 USD
Retailer 4$1,970 USD

23 data points across 9 retailers

9 retailers$474 USD to $2,580 USD

A
Cheapest Retailer
-
$474 USD
HK$3,700 HKD
Retailer 2
-
$531 USD
£418 GBP
View
Price last confirmed 13 days ago
B+
Retailer 3
-
$655 USD
View
A
Retailer 4
-
$665 USD
€633 EUR
View
B
Retailer 5
-
$695 USD
View
A
Retailer 6
-
$771 USD
£607 GBP
View
B+
Retailer 7
-
$996 USD
View
B
Retailer 8
-
$1,970 USD
View
Most Expensive
B
Brilliant Earth
21823147A · Oct 29
$2,580 USD
View
8 more retailers have this diamond
Prices start from $474 USDSave up to $2,106 USD

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
$474 USD