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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 $503 AUD
As of November 4, 2026
Save $3,211 AUD (86%) vs most expensive(unlock to see where)
13 retailers carry this diamond
Most expensive: $3,714 AUD 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 $503 to $3,714, a $3,211 spread on the same certified stone. Do Amore Diamonds lists it at $3,714. 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

How it works →
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: $3,714 AUD|Low: $503 AUD|High: $4,371 AUD|Avg: $1,882 AUD|-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$503 AUD
Retailer 3$736 AUD
Retailer 10$754 AUD
Retailer 11$850 AUD
Retailer 7$946 AUD
Retailer 4$1,149 AUD
Retailer 6$1,406 AUD
Retailer 12$1,621 AUD
Retailer 2$2,286 AUD
Retailer 13$2,971 AUD
Retailer 8$2,991 AUD
Retailer 9$3,357 AUD
Do Amore Diamonds$3,714 AUD

29 data points across 13 retailers

13 retailers$503 AUD to $3,714 AUD

A
Cheapest Retailer
-
$503 AUD
Final sale: no returns
A
Retailer 2
-
$736 AUD
View
A
Retailer 3
-
$754 AUD
View
B+
Retailer 4
-
$850 AUD
View
A
Retailer 5
-
$946 AUD
View
A
Retailer 6
-
$1,149 AUD
View
A
Retailer 7
-
$1,406 AUD
View
B+
Retailer 8
-
$1,621 AUD
View
B+
Retailer 9
-
$2,286 AUD
View
B
Retailer 10
-
$2,971 AUD
View
B
Retailer 11
-
$2,991 AUD
View
B
Retailer 12
-
$3,357 AUD
View
Most Expensive
B
Do Amore Diamonds
27-BBE79FD92 · Nov 5
$3,714 AUD
$2,600 USD
View
12 more retailers have this diamond
Prices start from $503 AUDSave up to $3,211 AUD

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
$503 AUD