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Round|Lab Grown|IGI

1.55ct I SI1 Round Lab Grown Diamond

ID • I/SI1 • IGI LG492112480

Shape and cutting style on the report: Round brilliant

Certificate IGI LG492112480

Diamond specifications and retailer prices

From $1,201 CAD
As of November 5, 2026
Save $5,319 CAD (82%) vs most expensive(unlock to see where)
11 retailers carry this diamond
Most expensive: $6,520 CAD at MOH London · As of November 3, 2026
View at MOH London

About this 1.55ct lab-grown round diamond

This 1.55ct lab-grown round sits in the one-and-a-half to two carat band, graded I colour (near-colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG492112480 or 492112480. Listed at 11 retailers as of November 3, 2026, with prices from $1,201 to $6,520, a $5,319 spread on the same certified stone. MOH London lists it at $6,520. 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

1.55
Carat
I
Color
SI1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle33.5°
Pavilion angle41.1°
OriginLab Grown
Grading LabIGI
CertificateIGI LG492112480
Dimensions7.47 × 7.50 × 4.54 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
7.47 mm7.50 mm1.55 ctI / SI1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG492112480
Side View
Table 59.0%Crown 33.5°Girdle: MediumPavilion 41.1°Culet: NoneDepth 60.6%

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: $6,520 CAD|Low: $1,201 CAD|High: $6,607 CAD|Avg: $3,079 CAD
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
November 1, 2026
Retailer 2$1,201 CAD
Retailer 3$1,968 CAD
Retailer 6$2,204 CAD
Retailer 4$2,283 CAD
Retailer 7$2,283 CAD
Retailer 8$2,521 CAD
Retailer 10$3,116 CAD
Retailer 5$3,602 CAD
Retailer 9$4,144 CAD
MOH London$6,520 CAD

15 data points across 10 retailers

11 retailers$1,201 CAD to $6,520 CAD

A
Cheapest Retailer
-
$1,201 CAD
B+
Retailer 2
-
$1,968 CAD
View
B+
Retailer 3
-
$2,141 CAD
View
B+
Retailer 4
-
$2,204 CAD
View
Final sale: no returns
Retailer 5
-
$2,283 CAD
View
Price last confirmed 25 days ago
B+
Retailer 6
-
$2,283 CAD
View
B+
Retailer 7
-
$2,521 CAD
View
B
Retailer 8
-
$3,602 CAD
View
B
Retailer 9
-
$4,144 CAD
View
B
Retailer 10
-
$4,279 CAD
View
Most Expensive
B
MOH London
LG492112480 · Nov 3
$6,520 CAD
£3,676 GBP
View
10 more retailers have this diamond
Prices start from $1,201 CADSave up to $5,319 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
1.55ct Round
$1,201 CAD