Radiant|Lab Grown|IGI

0.40ct D IF Radiant Lab Grown Diamond

D/IF • IGI LG656494792

Shape and cutting style on the report: Cut cornered rectangular modified brilliant

Certificate IGI LG656494792

Diamond specifications and retailer prices

From $135 USD
As of October 30, 2026
Save $729 USD (84%) vs most expensive(unlock to see where)
18 retailers carry this diamond
Most expensive: $864 USD at MOH London · As of October 26, 2026
View at MOH London

About this 0.4ct lab-grown radiant diamond

This 0.4ct lab-grown radiant sits in the sub-half-carat band, graded D colour (colourless) and IF clarity (flawless or internally-flawless) and certified by IGI LG656494792 or 656494792. Listed at 18 retailers as of October 26, 2026, with prices from $135 to $864, a $729 spread on the same certified stone. MOH London lists it at $864. 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

0.40
Carat
D
Color
IF
Clarity
-
Cut

Specifications

Cut
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle53.6°
Pavilion angle37.1°
OriginLab Grown
Grading LabIGI
CertificateIGI LG656494792
Dimensions3.61 × 3.61 × 5.35 mm
L/W Ratio1.00
Culet sizePointed
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
3.61 mm3.61 mm0.40 ctD / IF
OriginLab Grown
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG656494792
Side View
Table 67.0%Crown 53.6°Girdle: MED-THKPavilion 37.1°Culet: NoneDepth 68.1%

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 30
Current: $864 USD|Low: $129 USD|High: $872 USD|Avg: $322 USD|-1.0%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
Retailer 13
October 30, 2026
Retailer 11$135 USD
Retailer 13$151 USD
Retailer 3$156 USD
Retailer 10$167 USD
Retailer 12$167 USD
Retailer 5$228 USD
Retailer 4$299 USD
Retailer 2$319 USD
Retailer 6$333 USD
Retailer 9$420 USD
Retailer 7$443 USD
Retailer 8$480 USD
MOH London$864 USD

46 data points across 13 retailers

18 retailers$135 USD to $864 USD

Retailer 1
-
$135 USD
Price last confirmed 22 days ago
A
Retailer 2
-
$135 USD
View
A
Retailer 3
-
$151 USD
View
Final sale: no returns
Retailer 4
-
$156 USD
View
Price last confirmed 34 days ago
Retailer 5
-
$167 USD
View
Price last confirmed 27 days ago
A
Retailer 6
-
$167 USD
View
A
Retailer 7
-
$215 USD
View
A
Retailer 8
-
$228 USD
View
B+
Retailer 9
-
$299 USD
View
B+
Retailer 10
-
$319 USD
£251 GBP
View
B+
Retailer 11
-
$333 USD
ZAR 5,387 ZAR
View
B+
Retailer 12
-
$420 USD
View
B+
Retailer 13
-
$443 USD
A$682 AUD
View
B
Retailer 14
-
$480 USD
A$738 AUD
View
Retailer 15
-
$593 USD
View
Price last confirmed 29 days ago
B
Retailer 16
-
$593 USD
View
B
Retailer 17
-
$768 USD
View
Most Expensive
B
MOH London
LG656494792 · Oct 26
$864 USD
£680 GBP
View
17 more retailers have this diamond
Prices start from $135 USDSave up to $729 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
0.40ct Radiant
$135 USD