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1.40ct E SI1 Round Lab Grown Diamond

ID • E/SI1 • IGI LG790625827

Shape and cutting style on the report: Round brilliant

Certificate IGI LG790625827

Diamond specifications and retailer prices

From $312 NZD
$176 USD
As of October 29, 2026
Save $1,508 NZD (83%) vs most expensive(unlock to see where)
14 retailers carry this diamond
Most expensive: $1,821 NZD at MOH London · As of October 29, 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 LG790625827 or 790625827. Listed at 14 retailers as of October 29, 2026, with prices from $312 to $1,821, a $1,508 spread on the same certified stone. MOH London lists it at $1,821. 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
Colour
SI1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle35.7°
Pavilion angle40.4°
OriginLab Grown
Grading LabIGI
CertificateIGI LG790625827
Dimensions7.20 × 7.16 × 4.37 mm
L/W Ratio1.01
Girdle conditionFaceted
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
7.20 mm7.16 mm1.40 ctE / SI1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG790625827
Side View
Table 59.0%Crown 35.7°Girdle: MediumPavilion 40.4°Culet: NoneDepth 60.9%

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 29
Current: $1,821 NZD|Low: $277 NZD|High: $1,821 NZD|Avg: $779 NZD
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
Retailer 14
October 30, 2026
Retailer 5$312 NZD
Retailer 6$348 NZD
Retailer 12$362 NZD
Retailer 3$387 NZD
Retailer 9$387 NZD
Retailer 4$688 NZD
Retailer 7$693 NZD
Retailer 2$756 NZD
Retailer 10$846 NZD
Retailer 13$974 NZD
Retailer 11$1,244 NZD
Retailer 8$1,315 NZD
Retailer 14$1,341 NZD
MOH London$1,821 NZD

11 data points across 14 retailers

14 retailers$312 NZD to $1,821 NZD

A
Cheapest Retailer
-
$312 NZD
$176 USD
A
Retailer 2
-
$348 NZD
$196 USD
View
Final sale: no returns
A
Retailer 3
-
$362 NZD
$204 USD
View
A
Retailer 4
-
$387 NZD
$218 USD
View
A
Retailer 5
-
$387 NZD
$218 USD
View
B+
Retailer 6
-
$688 NZD
$388 USD
View
A
Retailer 7
-
$693 NZD
£307 GBP
View
A
Retailer 8
-
$756 NZD
£336 GBP
View
B+
Retailer 9
-
$846 NZD
$477 USD
View
B+
Retailer 10
-
$974 NZD
$549 USD
View
B+
Retailer 11
-
$1,244 NZD
$701 USD
View
B
Retailer 12
-
$1,315 NZD
$741 USD
View
B
Retailer 13
-
$1,341 NZD
$756 USD
View
Most Expensive
B
MOH London
LG790625827 · Oct 29
$1,821 NZD
£808 GBP
View
13 more retailers have this diamond
Prices start from $312 NZDSave up to $1,508 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 Round
$312 NZD