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Marquise|Lab Grown|IGI

1.09ct G SI1 Marquise Lab Grown Diamond

VG • G/SI1 • IGI LG839666703

Shape and cutting style on the report: Marquise brilliant

Certificate IGI LG839666703

Diamond specifications and retailer prices

From $359 SGD
£221 GBP
As of November 3, 2026
Save $1,429 SGD (80%) vs most expensive(unlock to see where)
5 retailers carry this diamond
Most expensive: $1,788 SGD at MOH London · As of November 2, 2026
View at MOH London

About this 1.09ct lab-grown marquise diamond

This 1.09ct lab-grown marquise sits in the classic one-carat band, graded G colour (near-colourless) and SI1 clarity (slightly-included), with a very-good cut grade and certified by IGI LG839666703 or 839666703. Listed at 5 retailers as of November 2, 2026, with prices from $359 to $1,788, a $1,429 spread on the same certified stone. MOH London lists it at $1,788. Cut grade matters more than carat or clarity for visible brilliance. If you can shift budget toward an Excellent or Ideal cut, do it before chasing higher colour or clarity.

The 4Cs

1.09
Carat
G
Colour
SI1
Clarity
Very Good
Cut

Specifications

CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle38.5°
Pavilion angle40°
OriginLab Grown
Grading LabIGI
CertificateIGI LG839666703
Dimensions10.95 × 5.17 × 3.29 mm
L/W Ratio2.12
Girdle conditionFaceted
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
10.95 mm5.17 mm1.09 ctG / SI1
OriginLab Grown
CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG839666703
Side View
Table 62.0%Crown 38.5°Girdle: MED-STKPavilion 40°Culet: NoneDepth 63.6%

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 3
Current: $1,788 SGD|Low: $350 SGD|High: $1,806 SGD|Avg: $670 SGD|-1.0%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
November 3, 2026
Retailer 2$359 SGD
Retailer 5$403 SGD
Retailer 3$407 SGD
Retailer 4$411 SGD
MOH London$1,788 SGD

21 data points across 5 retailers

5 retailers$359 SGD to $1,788 SGD

A
Cheapest Retailer
-
$359 SGD
£221 GBP
B+
Retailer 2
-
$403 SGD
$315 USD
View
A
Retailer 3
-
$407 SGD
£250 GBP
View
A
Retailer 4
-
$411 SGD
$321 USD
View
Most Expensive
B
MOH London
LG839666703 · Nov 2
$1,788 SGD
£1,101 GBP
View
4 more retailers have this diamond
Prices start from $359 SGDSave up to $1,429 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 Marquise
$359 SGD