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Round|Lab Grown|IGI

1.09ct J SI1 Round Lab Grown Diamond

ID • J/SI1 • IGI LG436073891

Shape and cutting style on the report: Round brilliant

Certificate IGI LG436073891

Diamond specifications and retailer prices

From $625 SGD
As of November 5, 2026
Save $2,599 SGD (81%) vs most expensive(unlock to see where)
13 retailers carry this diamond
Most expensive: $3,223 SGD at MOH London · As of November 5, 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 J colour (near-colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG436073891 or 436073891. Listed at 13 retailers as of November 5, 2026, with prices from $625 to $3,223, a $2,599 spread on the same certified stone. MOH London lists it at $3,223. 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
J
Colour
SI1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle33°
Pavilion angle40.5°
OriginLab Grown
Grading LabIGI
CertificateIGI LG436073891
Dimensions6.67 × 6.64 × 4.04 mm
L/W Ratio1.00
Girdle conditionFaceted
Culet sizePointed
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process and may include post-growth treatment Type IIa
Top View
6.67 mm6.64 mm1.09 ctJ / SI1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG436073891
Side View
Table 56.5%Crown 33°GirdlePavilion 40.5°Culet: NoneDepth 60.7%

Caratlytics Score

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A
Excellent
Excellent quality and great value
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Price History

Last verified: Nov 5
Current: $3,223 SGD|Low: $499 SGD|High: $3,270 SGD|Avg: $1,207 SGD|-0.3%
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 10$625 SGD
Retailer 3$699 SGD
Retailer 14$699 SGD
Retailer 5$720 SGD
Retailer 11$774 SGD
Retailer 13$774 SGD
Retailer 7$792 SGD
Retailer 2$830 SGD
Retailer 9$952 SGD
Retailer 12$1,206 SGD
Retailer 6$1,322 SGD
Retailer 4$2,036 SGD
Retailer 8$2,081 SGD
MOH London$3,223 SGD

40 data points across 14 retailers

13 retailers$625 SGD to $3,223 SGD

A
Cheapest Retailer
-
$625 SGD
A
Retailer 2
-
$699 SGD
View
A
Retailer 3
-
$699 SGD
View
Final sale: no returns
A
Retailer 4
-
$720 SGD
View
Retailer 5
-
$774 SGD
View
Price last confirmed 21 days ago
A
Retailer 6
-
$774 SGD
View
A
Retailer 7
-
$792 SGD
View
A
Retailer 8
-
$830 SGD
View
A
Retailer 9
-
$952 SGD
View
B+
Retailer 10
-
$1,206 SGD
View
B
Retailer 11
-
$2,036 SGD
View
B
Retailer 12
-
$2,081 SGD
View
Most Expensive
B
MOH London
LG436073891 · Nov 5
$3,223 SGD
£1,987 GBP
View
12 more retailers have this diamond
Prices start from $625 SGDSave up to $2,599 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
$625 SGD