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1.14ct I SI1 Round Lab Grown Diamond

ID • I/SI1 • IGI LG400943059

Shape and cutting style on the report: Round brilliant

Certificate IGI LG400943059

Diamond specifications and retailer prices

From $649 NZD
$366 USD
As of November 1, 2026
Save $1,216 NZD (65%) vs most expensive(unlock to see where)
5 retailers carry this diamond
Most expensive: $1,866 NZD at MOH London · As of November 1, 2026
View at MOH London

About this 1.14ct lab-grown round diamond

This 1.14ct lab-grown round sits in the classic one-carat band, graded I colour (near-colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG400943059 or 400943059. Listed at 5 retailers as of November 1, 2026, with prices from $649 to $1,866, a $1,216 spread on the same certified stone. MOH London lists it at $1,866. 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

1.14
Carat
I
Colour
SI1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle34.8°
Pavilion angle40.4°
OriginLab Grown
Grading LabIGI
CertificateIGI LG400943059
Dimensions6.70 × 6.68 × 4.09 mm
L/W Ratio1.00
Girdle conditionFaceted
Culet sizePointed
Cert comments
This Laboratory grown diamond was created by chemical vapor deposition process (CVD) Type IIa
Top View
6.70 mm6.68 mm1.14 ctI / SI1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG400943059
Side View
Table 58.0%Crown 34.8°Girdle: MED-STKPavilion 40.4°Culet: NoneDepth 61.1%

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: Nov 1
Current: $1,866 NZD|Low: $605 NZD|High: $1,888 NZD|Avg: $995 NZD|-0.1%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
November 1, 2026
Retailer 3$649 NZD
Retailer 2$745 NZD
Retailer 5$786 NZD
Retailer 4$933 NZD
MOH London$1,866 NZD

11 data points across 5 retailers

5 retailers$649 NZD to $1,866 NZD

A
Cheapest Retailer
-
$649 NZD
$366 USD
A
Retailer 2
-
$745 NZD
$420 USD
View
A
Retailer 3
-
$786 NZD
$443 USD
View
A
Retailer 4
-
$933 NZD
$526 USD
View
Most Expensive
A
MOH London
LG400943059 · Nov 1
$1,866 NZD
£828 GBP
View
4 more retailers have this diamond
Prices start from $649 NZDSave up to $1,216 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
1.14ct Round
$649 NZD