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Emerald|Lab Grown|IGI

1.18ct H SI1 Emerald Lab Grown Diamond

ID • H/SI1 • IGI LG436045918

Shape and cutting style on the report: Emerald cut

Certificate IGI LG436045918

Diamond specifications and retailer prices

From $669 USD
As of November 6, 2026
Save $2,601 USD (80%) vs most expensive(unlock to see where)
10 retailers carry this diamond
Most expensive: $3,270 USD at MOH London · As of November 3, 2026
View at MOH London

About this 1.18ct lab-grown emerald diamond

This 1.18ct lab-grown emerald sits in the classic one-carat band, graded H colour (near-colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG436045918 or 436045918. Listed at 10 retailers as of November 3, 2026, with prices from $669 to $3,270, a $2,601 spread on the same certified stone. MOH London lists it at $3,270. 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

1.18
Carat
H
Color
SI1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryVery Good
FluorescenceNone
Crown angle21.4°
Pavilion angle41.6°
OriginLab Grown
Grading LabIGI
CertificateIGI LG436045918
Dimensions7.34 × 5.02 × 3.32 mm
L/W Ratio1.46
Culet sizeLong
Cert comments
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Top View
7.34 mm5.02 mm1.18 ctH / SI1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateIGI LG436045918
Side View
Table 62.5%Crown 21.4°Girdle: STK-THKPavilion 41.6°Culet: LNGDepth 66.1%

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: Nov 6
Current: $3,270 USD|Low: $642 USD|High: $3,313 USD|Avg: $1,317 USD
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
November 1, 2026
Retailer 7$669 USD
Retailer 2$680 USD
Retailer 12$728 USD
Retailer 8$776 USD
Retailer 11$776 USD
Retailer 5$955 USD
Retailer 4$1,021 USD
Retailer 3$1,246 USD
Retailer 9$1,264 USD
Retailer 6$1,983 USD
Retailer 10$2,183 USD
MOH London$3,270 USD

22 data points across 12 retailers

10 retailers$669 USD to $3,270 USD

A
Cheapest Retailer
-
$669 USD
A
Retailer 2
-
$680 USD
View
A
Retailer 3
-
$728 USD
View
A
Retailer 4
-
$776 USD
View
Retailer 5
-
$776 USD
View
Price last confirmed 21 days ago
A
Retailer 6
-
$955 USD
View
B+
Retailer 7
-
$1,264 USD
View
B
Retailer 8
-
$1,983 USD
View
B
Retailer 9
-
$2,183 USD
View
Most Expensive
B
MOH London
LG436045918 · Nov 3
$3,270 USD
£2,575 GBP
View
9 more retailers have this diamond
Prices start from $669 USDSave up to $2,601 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
1.18ct Emerald
$669 USD