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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 $209 CAD
$149 USD
As of October 29, 2026
Save $1,234 CAD (86%) vs most expensive(unlock to see where)
17 retailers carry this diamond
Most expensive: $1,443 CAD at Reve Diamonds · As of October 28, 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 28, 2026, with prices from $209 to $1,443, a $1,234 spread on the same certified stone. Reve Diamonds lists it at $1,443. 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
Color
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

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: Oct 29
Current: $926 CAD|Low: $234 CAD|High: $1,225 CAD|Avg: $579 CAD
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
October 29, 2026
Retailer 4$256 CAD
Retailer 3$448 CAD
Retailer 7$448 CAD
Retailer 2$474 CAD
Retailer 5$507 CAD
Retailer 8$644 CAD
Retailer 10$677 CAD
Retailer 9$714 CAD
Retailer 1$926 CAD
Retailer 6$1,216 CAD

36 data points across 10 retailers

17 retailers$209 CAD to $1,443 CAD

A
Cheapest Retailer
-
$209 CAD
$149 USD
A
Retailer 2
-
$242 CAD
$173 USD
View
A
Retailer 3
-
$256 CAD
$183 USD
View
Final sale: no returns
A
Retailer 4
-
$259 CAD
$185 USD
View
A
Retailer 5
-
$259 CAD
$185 USD
View
A
Retailer 6
-
$432 CAD
$309 USD
View
A
Retailer 7
-
$448 CAD
£252 GBP
View
A
Retailer 8
-
$448 CAD
€305 EUR
View
A
Retailer 9
-
$474 CAD
$339 USD
View
A
Retailer 10
-
$507 CAD
£285 GBP
View
B+
Retailer 11
-
$644 CAD
A$708 AUD
View
B+
Retailer 12
-
$677 CAD
$484 USD
View
B+
Retailer 13
-
$714 CAD
$510 USD
View
Price last confirmed 13 days ago
B
Retailer 14
-
$831 CAD
$594 USD
View
B
Retailer 15
-
$926 CAD
$662 USD
View
B
Retailer 16
-
$1,216 CAD
£684 GBP
View
Most Expensive
B
Reve Diamonds
FDA9E6D5D · Oct 28
$1,443 CAD
$1,031 USD
View
16 more retailers have this diamond
Prices start from $209 CADSave up to $1,234 CAD

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
$209 CAD