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Round|Lab Grown|IGI

1.05ct I SI1 Round Lab Grown Diamond

ID • I/SI1 • IGI LG492123220

Shape and cutting style on the report: Round brilliant

Certificate IGI LG492123220

Diamond specifications and retailer prices

From $852 CAD
$610 USD
As of October 30, 2026
Save $5,268 CAD (86%) vs most expensive(unlock to see where)
13 retailers carry this diamond
Most expensive: $6,121 CAD at MOH London · As of October 29, 2026
View at MOH London

About this 1.05ct lab-grown round diamond

This 1.05ct 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 LG492123220 or 492123220. Listed at 13 retailers as of October 29, 2026, with prices from $852 to $6,121, a $5,268 spread on the same certified stone. MOH London lists it at $6,121. 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

1.05
Carat
I
Color
SI1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle32.9°
Pavilion angle40.9°
OriginLab Grown
Grading LabIGI
CertificateIGI LG492123220
Dimensions6.54 × 6.56 × 4.01 mm
L/W Ratio1.00
Girdle conditionFaceted
Culet sizePointed
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process and may include post-growth treatment Type IIa
Top View
6.54 mm6.56 mm1.05 ctI / SI1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG492123220
Side View
Table 57.0%Crown 32.9°Girdle: MediumPavilion 40.9°Culet: NoneDepth 61.2%

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: $6,121 CAD|Low: $852 CAD|High: $6,168 CAD|Avg: $2,627 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$852 CAD
Retailer 9$1,633 CAD
Retailer 3$1,777 CAD
Retailer 13$1,830 CAD
Retailer 10$1,894 CAD
Retailer 12$1,894 CAD
Retailer 4$2,137 CAD
Retailer 7$2,487 CAD
Retailer 5$2,665 CAD
Retailer 11$3,008 CAD
Retailer 8$3,244 CAD
Retailer 14$3,551 CAD
Retailer 6$3,734 CAD
MOH London$6,121 CAD

36 data points across 14 retailers

13 retailers$852 CAD to $6,121 CAD

A
Cheapest Retailer
-
$852 CAD
$610 USD
B+
Retailer 2
-
$1,633 CAD
$1,169 USD
View
B+
Retailer 3
-
$1,777 CAD
$1,272 USD
View
B+
Retailer 4
-
$1,830 CAD
$1,310 USD
View
Final sale: no returns
B+
Retailer 5
-
$1,894 CAD
$1,356 USD
View
Retailer 6
-
$1,894 CAD
$1,356 USD
View
Price last confirmed 18 days ago
B+
Retailer 7
-
$2,137 CAD
$1,530 USD
View
B+
Retailer 8
-
$2,487 CAD
£1,402 GBP
View
B
Retailer 9
-
$3,008 CAD
$2,153 USD
View
B
Retailer 10
-
$3,244 CAD
€2,212 EUR
View
B
Retailer 11
-
$3,551 CAD
$2,542 USD
View
B
Retailer 12
-
$3,734 CAD
$2,673 USD
View
Most Expensive
B
MOH London
LG492123220 · Oct 29
$6,121 CAD
£3,450 GBP
View
12 more retailers have this diamond
Prices start from $852 CADSave up to $5,268 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
1.05ct Round
$852 CAD