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Round|Lab Grown|IGI

1.09ct G SI1 Round Lab Grown Diamond

ID • G/SI1 • IGI LG804642958

Shape and cutting style on the report: Round brilliant

Certificate IGI LG804642958

Diamond specifications and retailer prices

From $183 SGD
As of November 5, 2026
Save $875 SGD (83%) vs most expensive(unlock to see where)
18 retailers carry this diamond
Most expensive: $1,058 SGD at MOH London · As of November 4, 2026
View at MOH London

About this 1.09ct lab-grown round diamond

This 1.09ct lab-grown round sits in the classic one-carat band, graded G colour (near-colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG804642958 or 804642958. Listed at 18 retailers as of November 4, 2026, with prices from $183 to $1,058, a $875 spread on the same certified stone. MOH London lists it at $1,058. 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

1.09
Carat
G
Colour
SI1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle34.4°
Pavilion angle40.7°
OriginLab Grown
Grading LabIGI
CertificateIGI LG804642958
Dimensions6.67 × 6.60 × 4.03 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
6.67 mm6.60 mm1.09 ctG / SI1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG804642958
Side View
Table 60.0%Crown 34.4°Girdle: MED-STKPavilion 40.7°Culet: NoneDepth 60.7%

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 5
Current: $1,058 SGD|Low: $183 SGD|High: $1,147 SGD|Avg: $516 SGD|-7.5%
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
November 6, 2026
Retailer 12$183 SGD
Retailer 11$212 SGD
Retailer 6$227 SGD
Retailer 8$384 SGD
Retailer 2$400 SGD
Retailer 3$423 SGD
Retailer 14$434 SGD
Retailer 7$502 SGD
Retailer 9$536 SGD
Retailer 13$544 SGD
Retailer 5$729 SGD
Retailer 10$770 SGD
Retailer 4$800 SGD
MOH London$1,058 SGD

36 data points across 14 retailers

18 retailers$183 SGD to $1,058 SGD

A
Cheapest Retailer
-
$183 SGD
A
Retailer 2
-
$212 SGD
View
A
Retailer 3
-
$227 SGD
View
Retailer 4
-
$243 SGD
View
Price last confirmed 12 days ago
A
Retailer 5
-
$384 SGD
View
A
Retailer 6
-
$400 SGD
View
A
Retailer 7
-
$423 SGD
View
B+
Retailer 8
-
$434 SGD
View
B+
Retailer 9
-
$502 SGD
View
B+
Retailer 10
-
$536 SGD
View
B+
Retailer 11
-
$536 SGD
View
B+
Retailer 12
-
$544 SGD
View
Retailer 13
-
$556 SGD
View
Price last confirmed 95 days ago
B+
Retailer 14
-
$580 SGD
View
B
Retailer 15
-
$729 SGD
View
B
Retailer 16
-
$770 SGD
View
B
Retailer 17
-
$800 SGD
View
Most Expensive
B
MOH London
LG804642958 · Nov 4
$1,058 SGD
£652 GBP
View
17 more retailers have this diamond
Prices start from $183 SGDSave up to $875 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
1.09ct Round
$183 SGD