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Cushion|Lab Grown|IGI

1.40ct D IF Cushion Lab Grown Diamond

D/IF • IGI LG768632638

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

Certificate IGI LG768632638

Diamond specifications and retailer prices

From $624 NZD
As of November 4, 2026
Save $3,988 NZD (86%) vs most expensive(unlock to see where)
13 retailers carry this diamond
Most expensive: $4,612 NZD at Do Amore Diamonds · As of November 5, 2026
View at Do Amore Diamonds

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 D colour (colourless) and IF clarity (flawless or internally-flawless) and certified by IGI LG768632638 or 768632638. Listed at 13 retailers as of November 4, 2026, with prices from $624 to $4,612, a $3,988 spread on the same certified stone. Do Amore Diamonds lists it at $4,612. 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
D
Colour
IF
Clarity
-
Cut

Specifications

Cut
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle37.3°
Pavilion angle39.5°
OriginLab Grown
Grading LabIGI
CertificateIGI LG768632638
Dimensions6.46 × 6.25 × 4.42 mm
L/W Ratio1.03
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
6.46 mm6.25 mm1.40 ctD / IF
OriginLab Grown
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG768632638
Side View
Table 61.0%Crown 37.3°Girdle: STK-THKPavilion 39.5°Culet: NoneDepth 70.7%

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: $4,612 NZD|Low: $624 NZD|High: $5,428 NZD|Avg: $2,338 NZD|-4.1%
Do Amore Diamonds
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
Retailer 13
November 5, 2026
Retailer 5$624 NZD
Retailer 3$914 NZD
Retailer 10$937 NZD
Retailer 11$1,056 NZD
Retailer 7$1,174 NZD
Retailer 4$1,426 NZD
Retailer 6$1,746 NZD
Retailer 12$2,013 NZD
Retailer 2$2,838 NZD
Retailer 13$3,690 NZD
Retailer 8$3,715 NZD
Retailer 9$4,169 NZD
Do Amore Diamonds$4,612 NZD

29 data points across 13 retailers

13 retailers$624 NZD to $4,612 NZD

A
Cheapest Retailer
-
$624 NZD
Final sale: no returns
A
Retailer 2
-
$914 NZD
View
A
Retailer 3
-
$937 NZD
View
B+
Retailer 4
-
$1,056 NZD
View
A
Retailer 5
-
$1,174 NZD
View
A
Retailer 6
-
$1,426 NZD
View
A
Retailer 7
-
$1,746 NZD
View
B+
Retailer 8
-
$2,013 NZD
View
B+
Retailer 9
-
$2,838 NZD
View
B
Retailer 10
-
$3,690 NZD
View
B
Retailer 11
-
$3,715 NZD
View
B
Retailer 12
-
$4,169 NZD
View
Most Expensive
B
Do Amore Diamonds
27-BBE79FD92 · Nov 5
$4,612 NZD
$2,600 USD
View
12 more retailers have this diamond
Prices start from $624 NZDSave up to $3,988 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
$624 NZD