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Round|Lab Grown|IGI

1.09ct G SI1 Round Lab Grown Diamond

EX • G/SI1 • IGI LG770639336

Shape and cutting style on the report: Round brilliant

Certificate IGI LG770639336

Diamond specifications and retailer prices

From $200 CAD
As of November 5, 2026
Save $957 CAD (83%) vs most expensive(unlock to see where)
18 retailers carry this diamond
Most expensive: $1,156 CAD at MOH London · As of November 4, 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 G colour (near-colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG770639336 or 770639336. Listed at 18 retailers as of November 4, 2026, with prices from $200 to $1,156, a $957 spread on the same certified stone. MOH London lists it at $1,156. 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
G
Color
SI1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle33.6°
Pavilion angle41.4°
OriginLab Grown
Grading LabIGI
CertificateIGI LG770639336
Dimensions6.62 × 6.65 × 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 Type IIa
Top View
6.62 mm6.65 mm1.09 ctG / SI1
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG770639336
Side View
Table 61.0%Crown 33.6°Girdle: MED-STKPavilion 41.4°Culet: NoneDepth 60.8%

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: Nov 5
Current: $1,156 CAD|Low: $193 CAD|High: $1,174 CAD|Avg: $539 CAD|-1.5%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
November 6, 2026
Retailer 8$200 CAD
Retailer 9$249 CAD
Retailer 2$420 CAD
Retailer 7$433 CAD
Retailer 10$462 CAD
Retailer 5$475 CAD
Retailer 3$547 CAD
Retailer 4$698 CAD
Retailer 6$842 CAD
MOH London$1,156 CAD

41 data points across 10 retailers

18 retailers$200 CAD to $1,156 CAD

A
Cheapest Retailer
-
$200 CAD
A
Retailer 2
-
$232 CAD
View
A
Retailer 3
-
$249 CAD
View
Retailer 4
-
$249 CAD
View
Price last confirmed 12 days ago
A
Retailer 5
-
$420 CAD
View
A
Retailer 6
-
$433 CAD
View
B+
Retailer 7
-
$462 CAD
View
A
Retailer 8
-
$475 CAD
View
B+
Retailer 9
-
$475 CAD
View
B+
Retailer 10
-
$547 CAD
View
B+
Retailer 11
-
$595 CAD
View
B+
Retailer 12
-
$634 CAD
View
B
Retailer 13
-
$698 CAD
View
B
Retailer 14
-
$698 CAD
View
B
Retailer 15
-
$797 CAD
View
B
Retailer 16
-
$842 CAD
View
B
Retailer 17
-
$874 CAD
View
Most Expensive
B
MOH London
LG770639336 · Nov 4
$1,156 CAD
£652 GBP
View
17 more retailers have this diamond
Prices start from $200 CADSave up to $957 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