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Round|Lab Grown|IGI

1.30ct I SI1 Round Lab Grown Diamond

ID • I/SI1 • IGI LG451055575

Shape and cutting style on the report: Round brilliant

Certificate IGI LG451055575

Diamond specifications and retailer prices

From $1,034 CAD
$740 USD
As of October 30, 2026
Save $3,792 CAD (79%) vs most expensive(unlock to see where)
11 retailers carry this diamond
Most expensive: $4,825 CAD at MOH London · As of October 29, 2026
View at MOH London

About this 1.3ct lab-grown round diamond

This 1.3ct lab-grown round sits in the one-and-a-quarter to one-and-a-half carat band, graded I colour (near-colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG451055575 or 451055575. Listed at 11 retailers as of October 29, 2026, with prices from $1,034 to $4,825, a $3,792 spread on the same certified stone. MOH London lists it at $4,825. 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

1.30
Carat
I
Color
SI1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle35.5°
Pavilion angle40.1°
OriginLab Grown
Grading LabIGI
CertificateIGI LG451055575
Dimensions7.00 × 7.02 × 4.28 mm
L/W Ratio1.00
Girdle conditionFaceted
Culet sizePointed
Cert comments
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Top View
7.00 mm7.02 mm1.30 ctI / SI1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG451055575
Side View
Table 56.0%Crown 35.5°Girdle: MED-STKPavilion 40.1°Culet: NoneDepth 61.1%

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: $4,825 CAD|Low: $841 CAD|High: $4,864 CAD|Avg: $1,936 CAD|+0.6%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
October 30, 2026
Retailer 2$1,034 CAD
Retailer 5$1,053 CAD
Retailer 8$1,179 CAD
Retailer 6$1,222 CAD
Retailer 4$1,467 CAD
Retailer 9$1,919 CAD
Retailer 7$1,977 CAD
Retailer 3$2,907 CAD
MOH London$4,825 CAD

20 data points across 9 retailers

11 retailers$1,034 CAD to $4,825 CAD

A
Cheapest Retailer
-
$1,034 CAD
$740 USD
A
Retailer 2
-
$1,053 CAD
$754 USD
View
A
Retailer 3
-
$1,147 CAD
$821 USD
View
B+
Retailer 4
-
$1,179 CAD
$844 USD
View
Final sale: no returns
B+
Retailer 5
-
$1,222 CAD
$875 USD
View
Retailer 6
-
$1,222 CAD
$875 USD
View
Price last confirmed 18 days ago
B+
Retailer 7
-
$1,467 CAD
$1,050 USD
View
B
Retailer 8
-
$1,977 CAD
$1,415 USD
View
B
Retailer 9
-
$2,907 CAD
$2,081 USD
View
B
Retailer 10
-
$3,436 CAD
$2,460 USD
View
Most Expensive
B
MOH London
LG451055575 · Oct 29
$4,825 CAD
£2,720 GBP
View
10 more retailers have this diamond
Prices start from $1,034 CADSave up to $3,792 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
1.30ct Round
$1,034 CAD