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Round|Lab Grown|IGI

1.09ct E SI2 Round Lab Grown Diamond

ID • E/SI2 • IGI LG780687717

Shape and cutting style on the report: Round brilliant

Certificate IGI LG780687717

Diamond specifications and retailer prices

From $200 CAD
$143 USD
As of October 29, 2026
Save $968 CAD (83%) vs most expensive(unlock to see where)
16 retailers carry this diamond
Most expensive: $1,168 CAD at MOH London · As of October 29, 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 E colour (colourless) and SI2 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG780687717 or 780687717. Listed at 16 retailers as of October 29, 2026, with prices from $200 to $1,168, a $968 spread on the same certified stone. MOH London lists it at $1,168. 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
SI2
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle35.6°
Pavilion angle41.1°
OriginLab Grown
Grading LabIGI
CertificateIGI LG780687717
Dimensions6.61 × 6.57 × 4.11 mm
L/W Ratio1.01
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
6.61 mm6.57 mm1.09 ctE / SI2
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG780687717
Side View
Table 56.0%Crown 35.6°Girdle: MediumPavilion 41.1°Culet: NoneDepth 62.4%

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: Oct 29
Current: $1,168 CAD|Low: $193 CAD|High: $1,177 CAD|Avg: $514 CAD|-0.6%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
October 30, 2026
Retailer 5$200 CAD
Retailer 10$232 CAD
Retailer 8$249 CAD
Retailer 9$249 CAD
Retailer 4$426 CAD
Retailer 6$435 CAD
Retailer 2$576 CAD
Retailer 11$627 CAD
Retailer 3$700 CAD
Retailer 7$799 CAD
MOH London$1,168 CAD

37 data points across 11 retailers

16 retailers$200 CAD to $1,168 CAD

A
Cheapest Retailer
-
$200 CAD
$143 USD
A
Retailer 2
-
$224 CAD
$160 USD
View
Final sale: no returns
Retailer 3
-
$232 CAD
$166 USD
View
Price last confirmed 10 days ago
A
Retailer 4
-
$249 CAD
$178 USD
View
A
Retailer 5
-
$249 CAD
$178 USD
View
B+
Retailer 6
-
$336 CAD
$240 USD
View
A
Retailer 7
-
$426 CAD
£240 GBP
View
A
Retailer 8
-
$435 CAD
€296 EUR
View
B+
Retailer 9
-
$526 CAD
$376 USD
View
B+
Retailer 10
-
$576 CAD
£324 GBP
View
B+
Retailer 11
-
$596 CAD
$426 USD
View
B+
Retailer 12
-
$627 CAD
$448 USD
View
B+
Retailer 13
-
$700 CAD
$500 USD
View
Retailer 14
-
$764 CAD
$546 USD
View
Price last confirmed 35 days ago
B
Retailer 15
-
$799 CAD
$571 USD
View
Most Expensive
B
MOH London
LG780687717 · Oct 29
$1,168 CAD
£657 GBP
View
15 more retailers have this diamond
Prices start from $200 CADSave up to $968 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
$200 CAD