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Cushion|Lab Grown|IGI

1.40ct E VVS1 Cushion Lab Grown Diamond

EX • E/VVS1 • IGI LG674551681

Shape and cutting style on the report: Square cushion brilliant

Certificate IGI LG674551681

Diamond specifications and retailer prices

From €258 EUR
$288 USD
As of October 30, 2026
Save €1,416 EUR (85%) vs most expensive(unlock to see where)
18 retailers carry this diamond
Most expensive: €1,674 EUR at Brilliant Earth · As of October 31, 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 E colour (colourless) and VVS1 clarity (very-very-slightly-included), with a top-tier cut grade and certified by IGI LG674551681 or 674551681. Listed at 18 retailers as of October 30, 2026, with prices from €258 to €1,674, a €1,416 spread on the same certified stone. Brilliant Earth lists it at €1,674. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.40
Carat
E
Color
VVS1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle35.6°
Pavilion angle39.7°
OriginLab Grown
Grading LabIGI
CertificateIGI LG674551681
Dimensions6.39 × 6.39 × 4.37 mm
L/W Ratio1.00
Girdle conditionFaceted
Culet sizePointed
Cert comments
As Grown - No indication of post-growth treatment This Laboratory Grown Diamond was created by High Pressure High Temperature (HPHT) growth process Type II
Top View
6.39 mm6.39 mm1.40 ctE / VVS1
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG674551681
Side View
Table 61.0%Crown 35.6°Girdle: STK-THKPavilion 39.7°Culet: NoneDepth 68.4%

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 30
Current: €1,674 EUR|Low: €258 EUR|High: €1,701 EUR|Avg: €634 EUR|+23.8%
Brilliant Earth
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
November 1, 2026
Retailer 6€258 EUR
Retailer 4€286 EUR
Retailer 2€350 EUR
Retailer 3€385 EUR
Retailer 9€430 EUR
Retailer 11€492 EUR
Retailer 8€513 EUR
Retailer 5€517 EUR
Retailer 7€547 EUR
Retailer 10€696 EUR
Retailer 14€702 EUR
Retailer 13€1,101 EUR
Retailer 12€1,148 EUR
Brilliant Earth€1,674 EUR

42 data points across 14 retailers

18 retailers€258 EUR to €1,674 EUR

A
Cheapest Retailer
-
€258 EUR
$288 USD
Final sale: no returns
A
Retailer 2
-
€286 EUR
$320 USD
View
A
Retailer 3
-
€350 EUR
£308 GBP
View
A
Retailer 4
-
€385 EUR
$430 USD
View
A
Retailer 5
-
€430 EUR
$480 USD
View
A
Retailer 6
-
€492 EUR
ZAR 8,875 ZAR
View
A
Retailer 7
-
€513 EUR
View
A
Retailer 8
-
€517 EUR
$578 USD
View
A
Retailer 9
-
€547 EUR
£481 GBP
View
B+
Retailer 10
-
€658 EUR
$735 USD
View
B+
Retailer 11
-
€696 EUR
A$1,197 AUD
View
B+
Retailer 12
-
€702 EUR
$784 USD
View
B+
Retailer 13
-
€966 EUR
$1,079 USD
View
Retailer 14
-
€1,101 EUR
$1,230 USD
View
Price last confirmed 13 days ago
B
Retailer 15
-
€1,148 EUR
£1,010 GBP
View
Price last confirmed 7 days ago
B
Retailer 16
-
€1,234 EUR
$1,378 USD
View
Retailer 17
-
€1,352 EUR
$1,510 USD
View
Price last confirmed 23 days ago
Most Expensive
B
Brilliant Earth
21311597A · Oct 31
€1,674 EUR
$1,870 USD
View
17 more retailers have this diamond
Prices start from €258 EURSave up to €1,416 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
€258 EUR