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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 €259 EUR
$288 USD
As of October 28, 2026
Save €1,421 EUR (85%) vs most expensive(unlock to see where)
18 retailers carry this diamond
Most expensive: €1,680 EUR at Brilliant Earth · As of October 29, 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 28, 2026, with prices from €259 to €1,680, a €1,421 spread on the same certified stone. Brilliant Earth lists it at €1,680. 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
Colour
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 28
Current: €1,680 EUR|Low: €259 EUR|High: €1,725 EUR|Avg: €664 EUR|-2.6%
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
Retailer 15
October 29, 2026
Retailer 6€259 EUR
Retailer 4€288 EUR
Retailer 9€354 EUR
Retailer 3€386 EUR
Retailer 12€386 EUR
Retailer 11€494 EUR
Retailer 8€519 EUR
Retailer 5€519 EUR
Retailer 2€549 EUR
Retailer 7€660 EUR
Retailer 10€699 EUR
Retailer 15€704 EUR
Retailer 14€1,105 EUR
Retailer 13€1,152 EUR
Brilliant Earth€1,680 EUR

40 data points across 15 retailers

18 retailers€259 EUR to €1,680 EUR

A
Cheapest Retailer
-
€259 EUR
$288 USD
Final sale: no returns
A
Retailer 2
-
€288 EUR
$320 USD
View
A
Retailer 3
-
€354 EUR
£310 GBP
View
A
Retailer 4
-
€386 EUR
$430 USD
View
A
Retailer 5
-
€386 EUR
$430 USD
View
A
Retailer 6
-
€494 EUR
ZAR 8,875 ZAR
View
A
Retailer 7
-
€519 EUR
View
A
Retailer 8
-
€519 EUR
$578 USD
View
A
Retailer 9
-
€549 EUR
£481 GBP
View
B+
Retailer 10
-
€660 EUR
$735 USD
View
B+
Retailer 11
-
€699 EUR
A$1,197 AUD
View
B+
Retailer 12
-
€704 EUR
$784 USD
View
B+
Retailer 13
-
€970 EUR
$1,079 USD
View
Retailer 14
-
€1,105 EUR
$1,230 USD
View
Price last confirmed 11 days ago
B
Retailer 15
-
€1,152 EUR
£1,010 GBP
View
B
Retailer 16
-
€1,238 EUR
$1,378 USD
View
Retailer 17
-
€1,357 EUR
$1,510 USD
View
Price last confirmed 21 days ago
Most Expensive
B
Brilliant Earth
21311597A · Oct 29
€1,680 EUR
$1,870 USD
View
17 more retailers have this diamond
Prices start from €259 EURSave up to €1,421 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
€259 EUR