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Cushion|Lab Grown|IGI

4.20ct F VVS1 Cushion Lab Grown Diamond

VG • F/VVS1 • IGI LG834617490

Shape and cutting style on the report: Cushion modified brilliant

Certificate IGI LG834617490

Diamond specifications and retailer prices

From €924 EUR
£813 GBP
As of October 27, 2026
Save €3,440 EUR (79%) vs most expensive(unlock to see where)
14 retailers carry this diamond
Most expensive: €4,927 EUR at Rare Carat · As of October 19, 2026
View at Rare Carat

About this 4.2ct lab-grown cushion diamond

This 4.2ct lab-grown cushion sits in the three to five carat band, graded F colour (colourless) and VVS1 clarity (very-very-slightly-included), with a very-good cut grade and certified by IGI LG834617490 or 834617490. Listed at 14 retailers as of October 27, 2026, with a 372% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. 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

4.20
Carat
F
Color
VVS1
Clarity
Very Good
Cut

Specifications

CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle41.3°
Pavilion angle34.6°
OriginLab Grown
Grading LabIGI
CertificateIGI LG834617490
Dimensions11.28 × 8.08 × 5.50 mm
L/W Ratio1.40
Girdle conditionFaceted
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
11.28 mm8.08 mm4.20 ctF / VVS1
OriginLab Grown
CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG834617490
Side View
Table 67.0%Crown 41.3°Girdle: STK-THKPavilion 34.6°Culet: NoneDepth 68.1%

Caratlytics Score

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A
Excellent
Excellent quality and great value
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Price History

Last verified: Oct 27
Current: €4,927 EUR|Low: €880 EUR|High: €4,981 EUR|Avg: €2,434 EUR|-1.1%
Rare Carat
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
Retailer 13
Retailer 14
Retailer 15
October 27, 2026
Retailer 13€880 EUR
Retailer 5€917 EUR
Retailer 8€924 EUR
Retailer 15€1,070 EUR
Retailer 12€1,305 EUR
Retailer 2€1,383 EUR
Retailer 10€1,393 EUR
Retailer 3€1,928 EUR
Retailer 4€1,964 EUR
Retailer 6€2,871 EUR
Retailer 11€3,419 EUR
Retailer 14€3,581 EUR
Retailer 9€4,364 EUR
Retailer 7€4,589 EUR
Rare Carat€4,927 EUR

35 data points across 15 retailers

14 retailers€924 EUR to €4,364 EUR

Retailer 1
-
€917 EUR
$1,025 USD
Price last confirmed 15 days ago
A
Retailer 2
-
€924 EUR
£813 GBP
View
A
Retailer 3
-
€1,070 EUR
$1,195 USD
View
A
Retailer 4
-
€1,305 EUR
$1,458 USD
View
A
Retailer 5
-
€1,383 EUR
View
A
Retailer 6
-
€1,393 EUR
£1,225 GBP
View
Retailer 7
-
€1,928 EUR
ZAR 34,798 ZAR
View
Price last confirmed 8 days ago
Retailer 8
-
€1,964 EUR
A$3,376 AUD
View
Price last confirmed 11 days ago
B
Retailer 9
-
€2,871 EUR
$3,208 USD
View
B
Retailer 10
-
€3,419 EUR
£3,008 GBP
View
B
Retailer 11
-
€3,581 EUR
SGD 5,407 SGD
View
B
Retailer 12
-
€4,364 EUR
$4,876 USD
View
Retailer 13
-
€4,589 EUR
A$7,887 AUD
View
Price last confirmed 24 days ago
Most Expensive
Rare Carat
CN265-21A · Oct 19
€4,927 EUR
$5,505 USD
View
Price last confirmed 14 days ago
13 more retailers have this diamond
Prices start from €924 EURSave up to €3,440 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
4.20ct Cushion
€924 EUR