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 $525 USD
HK$4,100 HKD
As of October 30, 2026
Save $1,875 USD (78%) vs most expensive(unlock to see where)
13 retailers carry this diamond
Most expensive: $2,400 USD at Brilliant Earth · As of October 30, 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 30, 2026, with prices from $525 to $2,400, a $1,875 spread on the same certified stone. Brilliant Earth lists it at $2,400. 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
Color
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
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Oct 30
Current: $2,400 USD|Low: $525 USD|High: $2,400 USD|Avg: $1,094 USD
Brilliant Earth
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
October 31, 2026
Retailer 12$525 USD
Retailer 3$645 USD
Retailer 6$742 USD
Retailer 7$784 USD
Retailer 5$824 USD
Retailer 9$1,036 USD
Retailer 10$1,047 USD
Retailer 4$1,507 USD
Retailer 11$1,756 USD
Retailer 8$1,786 USD
Retailer 2$2,095 USD
Brilliant Earth$2,400 USD

10 data points across 12 retailers

13 retailers$525 USD to $2,400 USD

A
Cheapest Retailer
-
$525 USD
HK$4,100 HKD
A
Retailer 2
-
$645 USD
View
A
Retailer 3
-
$742 USD
€707 EUR
View
A
Retailer 4
-
$784 USD
ZAR 12,668 ZAR
View
A
Retailer 5
-
$824 USD
£649 GBP
View
B+
Retailer 6
-
$1,036 USD
View
B+
Retailer 7
-
$1,047 USD
View
B+
Retailer 8
-
$1,270 USD
View
B+
Retailer 9
-
$1,507 USD
View
B
Retailer 10
-
$1,756 USD
View
B
Retailer 11
-
$1,786 USD
£1,406 GBP
View
B
Retailer 12
-
$2,095 USD
A$3,223 AUD
View
Most Expensive
B
Brilliant Earth
22234405A · Oct 30
$2,400 USD
View
12 more retailers have this diamond
Prices start from $525 USDSave up to $1,875 USD

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
$525 USD