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 $511 NZD
$288 USD
As of October 30, 2026
Save $2,807 NZD (85%) vs most expensive(unlock to see where)
18 retailers carry this diamond
Most expensive: $3,318 NZD 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 29, 2026, with prices from $511 to $3,318, a $2,807 spread on the same certified stone. Brilliant Earth lists it at $3,318. 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

How it works →
A
Excellent
Excellent quality and great value
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Oct 30
Current: $3,318 NZD|Low: $511 NZD|High: $3,407 NZD|Avg: $1,314 NZD|-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
October 30, 2026
Retailer 6$511 NZD
Retailer 4$568 NZD
Retailer 2$697 NZD
Retailer 3$763 NZD
Retailer 11$763 NZD
Retailer 10$975 NZD
Retailer 8$1,025 NZD
Retailer 5$1,026 NZD
Retailer 7$1,083 NZD
Retailer 9$1,380 NZD
Retailer 14$1,391 NZD
Retailer 13$2,182 NZD
Retailer 12$2,276 NZD
Brilliant Earth$3,318 NZD

40 data points across 14 retailers

18 retailers$511 NZD to $3,318 NZD

A
Cheapest Retailer
-
$511 NZD
$288 USD
Final sale: no returns
A
Retailer 2
-
$568 NZD
$320 USD
View
A
Retailer 3
-
$697 NZD
£309 GBP
View
A
Retailer 4
-
$763 NZD
$430 USD
View
A
Retailer 5
-
$763 NZD
$430 USD
View
A
Retailer 6
-
$975 NZD
ZAR 8,875 ZAR
View
A
Retailer 7
-
$1,025 NZD
€550 EUR
View
A
Retailer 8
-
$1,026 NZD
$578 USD
View
A
Retailer 9
-
$1,083 NZD
£481 GBP
View
B+
Retailer 10
-
$1,304 NZD
$735 USD
View
B+
Retailer 11
-
$1,380 NZD
A$1,197 AUD
View
B+
Retailer 12
-
$1,391 NZD
$784 USD
View
B+
Retailer 13
-
$1,915 NZD
$1,079 USD
View
Retailer 14
-
$2,182 NZD
$1,230 USD
View
Price last confirmed 13 days ago
B
Retailer 15
-
$2,276 NZD
£1,010 GBP
View
B
Retailer 16
-
$2,445 NZD
$1,378 USD
View
Retailer 17
-
$2,679 NZD
$1,510 USD
View
Price last confirmed 23 days ago
Most Expensive
B
Brilliant Earth
21311597A · Oct 29
$3,318 NZD
$1,870 USD
View
17 more retailers have this diamond
Prices start from $511 NZDSave up to $2,807 NZD

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
$511 NZD