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Round|Lab Grown|IGI

1.09ct I SI1 Round Lab Grown Diamond

ID • I/SI1 • IGI LG451057063

Shape and cutting style on the report: Round brilliant

Certificate IGI LG451057063

Diamond specifications and retailer prices

From $894 CAD
$640 USD
As of October 30, 2026
Save $5,454 CAD (86%) vs most expensive(unlock to see where)
13 retailers carry this diamond
Most expensive: $6,348 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 I colour (near-colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG451057063 or 451057063. Listed at 13 retailers as of October 29, 2026, with prices from $894 to $6,348, a $5,454 spread on the same certified stone. MOH London lists it at $6,348. 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
I
Color
SI1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle35.9°
Pavilion angle40.4°
OriginLab Grown
Grading LabIGI
CertificateIGI LG451057063
Dimensions6.53 × 6.56 × 4.09 mm
L/W Ratio1.00
Girdle conditionFaceted
Culet sizePointed
Cert comments
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Top View
6.53 mm6.56 mm1.09 ctI / SI1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG451057063
Side View
Table 56.5%Crown 35.9°Girdle: MED-STKPavilion 40.4°Culet: NoneDepth 62.5%

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 30
Current: $6,348 CAD|Low: $894 CAD|High: $6,399 CAD|Avg: $2,711 CAD|-0.5%
MOH London
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
October 30, 2026
Retailer 2$894 CAD
Retailer 9$1,694 CAD
Retailer 13$1,843 CAD
Retailer 3$1,897 CAD
Retailer 10$1,965 CAD
Retailer 12$1,965 CAD
Retailer 4$2,207 CAD
Retailer 7$2,580 CAD
Retailer 5$2,753 CAD
Retailer 11$3,116 CAD
Retailer 8$3,363 CAD
Retailer 14$3,684 CAD
Retailer 6$3,765 CAD
MOH London$6,348 CAD

37 data points across 14 retailers

13 retailers$894 CAD to $6,348 CAD

A
Cheapest Retailer
-
$894 CAD
$640 USD
B+
Retailer 2
-
$1,694 CAD
$1,213 USD
View
B+
Retailer 3
-
$1,843 CAD
$1,319 USD
View
B+
Retailer 4
-
$1,897 CAD
$1,358 USD
View
Final sale: no returns
B+
Retailer 5
-
$1,965 CAD
$1,407 USD
View
Retailer 6
-
$1,965 CAD
$1,407 USD
View
Price last confirmed 18 days ago
B+
Retailer 7
-
$2,207 CAD
$1,580 USD
View
B+
Retailer 8
-
$2,580 CAD
£1,454 GBP
View
B
Retailer 9
-
$3,116 CAD
$2,231 USD
View
B
Retailer 10
-
$3,363 CAD
€2,293 EUR
View
B
Retailer 11
-
$3,684 CAD
$2,637 USD
View
B
Retailer 12
-
$3,765 CAD
$2,695 USD
View
Most Expensive
B
MOH London
LG451057063 · Oct 29
$6,348 CAD
£3,578 GBP
View
12 more retailers have this diamond
Prices start from $894 CADSave up to $5,454 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
$894 CAD