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Round|Lab Grown|IGI

1.18ct G SI2 Round Lab Grown Diamond

ID • G/SI2 • IGI LG371992809

Shape and cutting style on the report: Round brilliant

Certificate IGI LG371992809

Diamond specifications and retailer prices

From $274 SGD
$214 USD
As of October 29, 2026
Save $1,236 SGD (82%) vs most expensive(unlock to see where)
15 retailers carry this diamond
Most expensive: $1,510 SGD at MOH London · As of October 29, 2026
View at MOH London

About this 1.18ct lab-grown round diamond

This 1.18ct lab-grown round sits in the classic one-carat band, graded G colour (near-colourless) and SI2 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG371992809 or 371992809. Listed at 15 retailers as of October 29, 2026, with prices from $274 to $1,510, a $1,236 spread on the same certified stone. MOH London lists it at $1,510. 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
G
Colour
SI2
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle35.5°
Pavilion angle41°
OriginLab Grown
Grading LabIGI
CertificateIGI LG371992809
Dimensions6.76 × 6.81 × 4.20 mm
L/W Ratio1.01
Girdle conditionFaceted
Cert comments
This Chemical Vapor Deposition (CVD) laboratory grown diamond is classified as Type IIa
Top View
6.76 mm6.81 mm1.18 ctG / SI2
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG371992809
Side View
Table 58.0%Crown 35.5°Girdle: MediumPavilion 41°Culet: NoneDepth 61.9%

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 29
Current: $1,510 SGD|Low: $274 SGD|High: $1,510 SGD|Avg: $732 SGD|+0.4%
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 12$274 SGD
Retailer 10$317 SGD
Retailer 9$340 SGD
Retailer 13$340 SGD
Retailer 2$399 SGD
Retailer 7$565 SGD
Retailer 5$670 SGD
Retailer 8$707 SGD
Retailer 11$744 SGD
Retailer 6$873 SGD
Retailer 3$1,096 SGD
Retailer 4$1,171 SGD
Retailer 14$1,204 SGD
MOH London$1,510 SGD

14 data points across 14 retailers

15 retailers$274 SGD to $1,510 SGD

A
Cheapest Retailer
-
$274 SGD
$214 USD
A
Retailer 2
-
$317 SGD
$248 USD
View
A
Retailer 3
-
$340 SGD
$266 USD
View
A
Retailer 4
-
$340 SGD
$266 USD
View
B+
Retailer 5
-
$399 SGD
$312 USD
View
B+
Retailer 6
-
$565 SGD
£348 GBP
View
B
Retailer 7
-
$670 SGD
$524 USD
View
B
Retailer 8
-
$707 SGD
£435 GBP
View
B+
Retailer 9
-
$744 SGD
$582 USD
View
B
Retailer 10
-
$873 SGD
$683 USD
View
B
Retailer 11
-
$1,061 SGD
$830 USD
View
B
Retailer 12
-
$1,096 SGD
$857 USD
View
B
Retailer 13
-
$1,171 SGD
$916 USD
View
B
Retailer 14
-
$1,204 SGD
$942 USD
View
Most Expensive
B
MOH London
LG371992809 · Oct 29
$1,510 SGD
£930 GBP
View
14 more retailers have this diamond
Prices start from $274 SGDSave up to $1,236 SGD

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 Round
$274 SGD