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Round|Lab Grown|IGI

1.09ct E SI1 Round Lab Grown Diamond

ID • E/SI1 • IGI LG675550843

Shape and cutting style on the report: Round brilliant

Certificate IGI LG675550843

Diamond specifications and retailer prices

From $194 SGD
$151 USD
As of October 29, 2026
Save $1,136 SGD (85%) vs most expensive(unlock to see where)
15 retailers carry this diamond
Most expensive: $1,330 SGD at Reve Diamonds · As of October 30, 2026
View at Reve Diamonds

About this 1.09ct lab-grown round diamond

This 1.09ct lab-grown round sits in the classic one-carat band, graded E colour (colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG675550843 or 675550843. Listed at 15 retailers as of October 29, 2026, with prices from $194 to $1,330, a $1,136 spread on the same certified stone. Reve Diamonds lists it at $1,330. 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
E
Colour
SI1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle33.4°
Pavilion angle41.2°
OriginLab Grown
Grading LabIGI
CertificateIGI LG675550843
Dimensions6.65 × 6.63 × 4.05 mm
L/W Ratio1.00
Girdle conditionFaceted
Culet sizePointed
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
6.65 mm6.63 mm1.09 ctE / SI1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG675550843
Side View
Table 59.0%Crown 33.4°Girdle: MED-STKPavilion 41.2°Culet: NoneDepth 61.0%

Caratlytics Score

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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: $469 SGD|Low: $194 SGD|High: $1,330 SGD|Avg: $520 SGD|-9.9%
Retailer 1
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
Reve Diamonds
October 30, 2026
Retailer 4$194 SGD
Retailer 2$215 SGD
Retailer 3$224 SGD
Retailer 14$240 SGD
Retailer 6$267 SGD
Retailer 12$397 SGD
Retailer 7$417 SGD
Retailer 10$441 SGD
Retailer 1$469 SGD
Retailer 9$652 SGD
Retailer 13$772 SGD
Retailer 11$815 SGD
Retailer 5$843 SGD
Retailer 8$1,130 SGD
Reve Diamonds$1,330 SGD

43 data points across 15 retailers

15 retailers$194 SGD to $1,330 SGD

A
Cheapest Retailer
-
$194 SGD
$151 USD
A
Retailer 2
-
$215 SGD
$168 USD
View
Final sale: no returns
A
Retailer 3
-
$224 SGD
$175 USD
View
A
Retailer 4
-
$240 SGD
$187 USD
View
A
Retailer 5
-
$267 SGD
$208 USD
View
A
Retailer 6
-
$397 SGD
$310 USD
View
A
Retailer 7
-
$417 SGD
£256 GBP
View
A
Retailer 8
-
$441 SGD
$344 USD
View
A
Retailer 9
-
$469 SGD
£288 GBP
View
B+
Retailer 10
-
$652 SGD
$509 USD
View
B
Retailer 11
-
$772 SGD
$602 USD
View
B
Retailer 12
-
$815 SGD
$636 USD
View
B
Retailer 13
-
$843 SGD
$658 USD
View
B
Retailer 14
-
$1,130 SGD
£694 GBP
View
Most Expensive
B
Reve Diamonds
5A1831A79 · Oct 30
$1,330 SGD
$1,038 USD
View
14 more retailers have this diamond
Prices start from $194 SGDSave up to $1,136 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
$194 SGD