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Cushion|Lab Grown|IGI

1.40ct D IF Cushion Lab Grown Diamond

VG • D/IF • IGI LG843612983

Shape and cutting style on the report: Cushion modified brilliant

Certificate IGI LG843612983

Diamond specifications and retailer prices

From $930 NZD
As of November 4, 2026
Save $3,328 NZD (78%) vs most expensive(unlock to see where)
14 retailers carry this diamond
Most expensive: $4,258 NZD at Brilliant Earth · As of November 4, 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 D colour (colourless) and IF clarity (flawless or internally-flawless), with a very-good cut grade and certified by IGI LG843612983 or 843612983. Listed at 14 retailers as of November 4, 2026, with prices from $930 to $4,258, a $3,328 spread on the same certified stone. Brilliant Earth lists it at $4,258. 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
Very Good
Cut

Specifications

CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle36.8°
Pavilion angle36.7°
OriginLab Grown
Grading LabIGI
CertificateIGI LG843612983
Dimensions7.45 × 6.04 × 4.02 mm
L/W Ratio1.23
Girdle conditionFaceted
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
7.45 mm6.04 mm1.40 ctD / IF
OriginLab Grown
CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG843612983
Side View
Table 59.0%Crown 36.8°Girdle: MED-THKPavilion 36.7°Culet: NoneDepth 66.6%

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: $4,258 NZD|Low: $930 NZD|High: $4,258 NZD|Avg: $2,113 NZD
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
November 5, 2026
Retailer 3$930 NZD
Retailer 4$1,144 NZD
Retailer 9$1,307 NZD
Retailer 6$1,394 NZD
Retailer 2$1,448 NZD
Retailer 11$1,838 NZD
Retailer 12$1,857 NZD
Retailer 5$2,672 NZD
Retailer 13$3,115 NZD
Retailer 8$3,163 NZD
Retailer 10$3,715 NZD
Retailer 7$3,734 NZD
Brilliant Earth$4,258 NZD

15 data points across 13 retailers

14 retailers$930 NZD to $4,258 NZD

A
Cheapest Retailer
-
$930 NZD
A
Retailer 2
-
$1,144 NZD
View
A
Retailer 3
-
$1,307 NZD
View
A
Retailer 4
-
$1,394 NZD
View
A
Retailer 5
-
$1,448 NZD
View
B+
Retailer 6
-
$1,838 NZD
View
B+
Retailer 7
-
$1,857 NZD
View
B+
Retailer 8
-
$2,253 NZD
View
B+
Retailer 9
-
$2,672 NZD
View
B
Retailer 10
-
$3,115 NZD
View
B
Retailer 11
-
$3,163 NZD
View
B
Retailer 12
-
$3,715 NZD
View
B
Retailer 13
-
$3,734 NZD
View
Most Expensive
B
Brilliant Earth
22234405A · Nov 4
$4,258 NZD
$2,400 USD
View
13 more retailers have this diamond
Prices start from $930 NZDSave up to $3,328 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
$930 NZD