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Cushion|Lab Grown|IGI

1.40ct F VVS1 Cushion Lab Grown Diamond

GD • F/VVS1 • IGI LG555298840

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

Certificate IGI LG555298840

Diamond specifications and retailer prices

From €178 EUR
As of November 4, 2026
Save €1,221 EUR (87%) vs most expensive(unlock to see where)
11 retailers carry this diamond
Most expensive: €1,399 EUR at Brilliant Earth · As of November 4, 2026
View at Brilliant Earth

About this 1.4ct lab-grown cushion diamond

This 1.4ct lab-grown cushion sits in the one-and-a-quarter to one-and-a-half carat band, graded F colour (colourless) and VVS1 clarity (very-very-slightly-included), with a standard cut grade and certified by IGI LG555298840 or 555298840. Listed at 11 retailers as of November 4, 2026, with prices from €178 to €1,399, a €1,221 spread on the same certified stone. Brilliant Earth lists it at €1,399. 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

1.40
Carat
F
Colour
VVS1
Clarity
Good
Cut

Specifications

CutGood
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle34.5°
Pavilion angle42.3°
OriginLab Grown
Grading LabIGI
CertificateIGI LG555298840
Dimensions6.64 × 6.55 × 4.25 mm
L/W Ratio1.01
Girdle conditionFaceted
Culet sizePointed
Cert comments
As Grown - No indication of post-growth treatment This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process.
Top View
6.64 mm6.55 mm1.40 ctF / VVS1
OriginLab Grown
CutGood
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG555298840
Side View
Table 61.5%Crown 34.5°Girdle: MED-STKPavilion 42.3°Culet: NoneDepth 64.9%

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: Nov 4
Current: €1,399 EUR|Low: €178 EUR|High: €1,434 EUR|Avg: €666 EUR|-2.5%
Brilliant Earth
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
November 5, 2026
Retailer 10€178 EUR
Retailer 7€350 EUR
Retailer 5€377 EUR
Retailer 2€393 EUR
Retailer 8€425 EUR
Retailer 4€532 EUR
Retailer 9€855 EUR
Retailer 3€1,018 EUR
Retailer 6€1,060 EUR
Brilliant Earth€1,399 EUR

43 data points across 10 retailers

11 retailers€178 EUR to €1,399 EUR

A
Cheapest Retailer
-
€178 EUR
Final sale: no returns
B+
Retailer 2
-
€350 EUR
View
A
Retailer 3
-
€377 EUR
View
Retailer 4
-
€387 EUR
View
Price last confirmed 15 days ago
A
Retailer 5
-
€393 EUR
View
B+
Retailer 6
-
€425 EUR
View
B+
Retailer 7
-
€532 EUR
View
B
Retailer 8
-
€855 EUR
View
B
Retailer 9
-
€1,018 EUR
View
B
Retailer 10
-
€1,060 EUR
View
Most Expensive
B
Brilliant Earth
7315448Y · Nov 4
€1,399 EUR
$1,570 USD
View
10 more retailers have this diamond
Prices start from €178 EURSave up to €1,221 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
1.40ct Cushion
€178 EUR