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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 €470 EUR
HK$4,100 HKD
As of October 31, 2026
Save €1,678 EUR (78%) vs most expensive(unlock to see where)
13 retailers carry this diamond
Most expensive: €2,148 EUR at Brilliant Earth · As of October 31, 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 13 retailers as of October 31, 2026, with prices from €470 to €2,148, a €1,678 spread on the same certified stone. Brilliant Earth lists it at €2,148. 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: Oct 31
Current: €2,148 EUR|Low: €470 EUR|High: €2,148 EUR|Avg: €997 EUR
Brilliant Earth
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
November 1, 2026
Retailer 12€470 EUR
Retailer 3€577 EUR
Retailer 6€660 EUR
Retailer 8€702 EUR
Retailer 5€737 EUR
Retailer 9€927 EUR
Retailer 10€937 EUR
Retailer 4€1,349 EUR
Retailer 11€1,572 EUR
Retailer 2€1,596 EUR
Retailer 7€1,875 EUR
Brilliant Earth€2,148 EUR

11 data points across 12 retailers

13 retailers€470 EUR to €2,148 EUR

A
Cheapest Retailer
-
€470 EUR
HK$4,100 HKD
A
Retailer 2
-
€577 EUR
$645 USD
View
A
Retailer 3
-
€660 EUR
View
A
Retailer 4
-
€702 EUR
ZAR 12,668 ZAR
View
A
Retailer 5
-
€737 EUR
£649 GBP
View
B+
Retailer 6
-
€927 EUR
$1,036 USD
View
B+
Retailer 7
-
€937 EUR
$1,047 USD
View
B+
Retailer 8
-
€1,137 EUR
$1,270 USD
View
B+
Retailer 9
-
€1,349 EUR
$1,507 USD
View
B
Retailer 10
-
€1,572 EUR
$1,756 USD
View
B
Retailer 11
-
€1,596 EUR
£1,404 GBP
View
B
Retailer 12
-
€1,875 EUR
A$3,223 AUD
View
Most Expensive
B
Brilliant Earth
22234405A · Oct 31
€2,148 EUR
$2,400 USD
View
12 more retailers have this diamond
Prices start from €470 EURSave up to €1,678 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
€470 EUR