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Round|Lab Grown|IGI

1.40ct E SI1 Round Lab Grown Diamond

EX • E/SI1 • IGI LG445029020

Shape and cutting style on the report: Round brilliant

Certificate IGI LG445029020

Diamond specifications and retailer prices

From $388 USD
As of October 30, 2026
Save $633 USD (62%) vs most expensive(unlock to see where)
4 retailers carry this diamond
Most expensive: $1,021 USD at MOH London · As of October 26, 2026
View at MOH London

About this 1.4ct lab-grown round diamond

This 1.4ct lab-grown round sits in the one-and-a-quarter to one-and-a-half carat band, graded E colour (colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG445029020 or 445029020. Listed at 4 retailers as of October 26, 2026, with prices from $388 to $1,021, a $633 spread on the same certified stone. MOH London lists it at $1,021. SI-grade stones are eye-clean roughly 60 to 70% of the time at this carat range. Check the inclusion plot on the cert and ask the retailer for high-resolution video before buying.

The 4Cs

1.40
Carat
E
Color
SI1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle33.6°
Pavilion angle41.5°
OriginLab Grown
Grading LabIGI
CertificateIGI LG445029020
Dimensions7.14 × 7.17 × 4.43 mm
L/W Ratio1.00
Girdle conditionFaceted
Cert comments
This Laboratory grown diamond was created by high pressure high temperature process (HPHT) Type II,No indications of post growth treatment.
Top View
7.14 mm7.17 mm1.40 ctE / SI1
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG445029020
Side View
Table 59.0%Crown 33.6°Girdle: MED-STKPavilion 41.5°Culet: NoneDepth 62.0%

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: $1,021 USD|Low: $295 USD|High: $1,830 USD|Avg: $1,083 USD|-1.0%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
October 30, 2026
Retailer 3$388 USD
Retailer 2$390 USD
Retailer 4$477 USD
MOH London$1,021 USD
Retailer 5$1,570 USD
Retailer 6$1,830 USD
Retailer 7$1,830 USD

33 data points across 7 retailers

4 retailers$388 USD to $1,021 USD

B+
Cheapest Retailer
-
$388 USD
A
Retailer 2
-
$390 USD
£307 GBP
View
B+
Retailer 3
-
$477 USD
View
Most Expensive
B
MOH London
LG445029020 · Oct 26
$1,021 USD
£804 GBP
View
3 more retailers have this diamond
Prices start from $388 USDSave up to $633 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 Round
$388 USD