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Round|Lab Grown|IGI

1.09ct E SI1 Round Lab Grown Diamond

ID • E/SI1 • IGI LG803603992

Shape and cutting style on the report: Round brilliant

Certificate IGI LG803603992

Diamond specifications and retailer prices

From $191 SGD
$149 USD
As of October 29, 2026
Save $1,143 SGD (86%) vs most expensive(unlock to see where)
17 retailers carry this diamond
Most expensive: $1,334 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 LG803603992 or 803603992. Listed at 17 retailers as of October 29, 2026, with prices from $191 to $1,334, a $1,143 spread on the same certified stone. Reve Diamonds lists it at $1,334. 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 angle34.3°
Pavilion angle40.6°
OriginLab Grown
Grading LabIGI
CertificateIGI LG803603992
Dimensions6.65 × 6.62 × 4.05 mm
L/W Ratio1.00
Girdle conditionFaceted
Culet sizePointed
Cert comments
As Grown - No indication of post-growth treatment This Laboratory Grown Diamond was created by High Pressure High Temperature (HPHT) growth process Type II
Top View
6.65 mm6.62 mm1.09 ctE / SI1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG803603992
Side View
Table 57.0%Crown 34.3°Girdle: MED-STKPavilion 40.6°Culet: NoneDepth 61.1%

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: $226 SGD|Low: $214 SGD|High: $1,334 SGD|Avg: $536 SGD
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Reve Diamonds
October 30, 2026
Retailer 1$226 SGD
Retailer 4$240 SGD
Retailer 10$410 SGD
Retailer 7$420 SGD
Retailer 5$443 SGD
Retailer 6$472 SGD
Retailer 11$590 SGD
Retailer 3$620 SGD
Retailer 2$654 SGD
Retailer 8$848 SGD
Retailer 9$1,113 SGD
Reve Diamonds$1,334 SGD

36 data points across 12 retailers

17 retailers$191 SGD to $1,334 SGD

A
Cheapest Retailer
-
$191 SGD
$149 USD
A
Retailer 2
-
$226 SGD
$176 USD
View
A
Retailer 3
-
$237 SGD
$185 USD
View
A
Retailer 4
-
$237 SGD
$185 USD
View
A
Retailer 5
-
$240 SGD
$187 USD
View
Final sale: no returns
A
Retailer 6
-
$396 SGD
$309 USD
View
A
Retailer 7
-
$410 SGD
€305 EUR
View
A
Retailer 8
-
$420 SGD
£258 GBP
View
B+
Retailer 9
-
$443 SGD
$346 USD
View
B+
Retailer 10
-
$472 SGD
£290 GBP
View
B+
Retailer 11
-
$590 SGD
A$708 AUD
View
B+
Retailer 12
-
$620 SGD
$484 USD
View
Retailer 13
-
$654 SGD
$510 USD
View
Price last confirmed 14 days ago
B
Retailer 14
-
$761 SGD
$594 USD
View
B
Retailer 15
-
$848 SGD
$662 USD
View
B
Retailer 16
-
$1,113 SGD
£684 GBP
View
Most Expensive
B
Reve Diamonds
FDA9E6D5D · Oct 30
$1,334 SGD
$1,041 USD
View
16 more retailers have this diamond
Prices start from $191 SGDSave up to $1,143 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
$191 SGD