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Cushion|Lab Grown|IGI

4.07ct G SI1 Cushion Lab Grown Diamond

ID • G/SI1 • IGI LG546221026

Shape and cutting style on the report: Square cushion brilliant

Certificate IGI LG546221026

Diamond specifications and retailer prices

From €521 EUR
$582 USD
As of October 29, 2026
Save €1,994 EUR (79%) vs most expensive(unlock to see where)
11 retailers carry this diamond
Most expensive: €2,515 EUR at Brilliant Earth · As of October 31, 2026
View at Brilliant Earth

About this 4.07ct lab-grown cushion diamond

This 4.07ct lab-grown cushion sits in the three to five carat band, graded G colour (near-colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG546221026 or 546221026. Listed at 11 retailers as of October 29, 2026, with prices from €521 to €2,515, a €1,994 spread on the same certified stone. Brilliant Earth lists it at €2,515. SI-grade stones are eye-clean roughly 60 to 70% of the time at this carat range. Check the inclusion plot on the cert and ask the retailer for high-resolution video before buying.

The 4Cs

4.07
Carat
G
Color
SI1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle34.5°
Pavilion angle34.8°
OriginLab Grown
Grading LabIGI
CertificateIGI LG546221026
Dimensions9.18 × 8.88 × 5.75 mm
L/W Ratio1.03
Girdle conditionFaceted
Culet sizePointed
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process and may include post-growth treatment Type IIa
Top View
9.18 mm8.88 mm4.07 ctG / SI1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG546221026
Side View
Table 62.5%Crown 34.5°Girdle: MED-THKPavilion 34.8°Culet: NoneDepth 64.8%

Caratlytics Score

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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 29
Current: €2,515 EUR|Low: €372 EUR|High: €2,587 EUR|Avg: €1,287 EUR|-2.8%
Brilliant Earth
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
November 1, 2026
Retailer 10€521 EUR
Retailer 4€698 EUR
Retailer 11€866 EUR
Retailer 2€894 EUR
Retailer 9€894 EUR
Retailer 5€918 EUR
Retailer 3€1,241 EUR
Retailer 7€1,335 EUR
Retailer 8€1,848 EUR
Retailer 6€2,420 EUR
Brilliant Earth€2,515 EUR

37 data points across 11 retailers

11 retailers€521 EUR to €2,515 EUR

A
Cheapest Retailer
-
€521 EUR
$582 USD
Final sale: no returns
A
Retailer 2
-
€698 EUR
$780 USD
View
A
Retailer 3
-
€866 EUR
$967 USD
View
A
Retailer 4
-
€894 EUR
£786 GBP
View
B+
Retailer 5
-
€894 EUR
$999 USD
View
A
Retailer 6
-
€918 EUR
View
B+
Retailer 7
-
€1,241 EUR
$1,387 USD
View
B+
Retailer 8
-
€1,335 EUR
$1,492 USD
View
Retailer 9
-
€1,848 EUR
$2,065 USD
View
Price last confirmed 27 days ago
B
Retailer 10
-
€2,420 EUR
£2,129 GBP
View
Most Expensive
B
Brilliant Earth
8058519A · Oct 31
€2,515 EUR
$2,810 USD
View
10 more retailers have this diamond
Prices start from €521 EURSave up to €1,994 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
4.07ct Cushion
€521 EUR