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Round|Lab Grown|IGI

1.55ct G SI1 Round Lab Grown Diamond

ID • G/SI1 • IGI LG816613920

Shape and cutting style on the report: Round brilliant

Certificate IGI LG816613920

Diamond specifications and retailer prices

From $268 CAD
$192 USD
As of October 29, 2026
Save $1,288 CAD (83%) vs most expensive(unlock to see where)
15 retailers carry this diamond
Most expensive: $1,556 CAD at MOH London · As of October 26, 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 G colour (near-colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG816613920 or 816613920. Listed at 15 retailers as of October 26, 2026, with prices from $268 to $1,556, a $1,288 spread on the same certified stone. MOH London lists it at $1,556. 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
G
Color
SI1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle34.8°
Pavilion angle40.6°
OriginLab Grown
Grading LabIGI
CertificateIGI LG816613920
Dimensions7.46 × 7.40 × 4.58 mm
L/W Ratio1.01
Girdle conditionFaceted
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
7.46 mm7.40 mm1.55 ctG / SI1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG816613920
Side View
Table 55.0%Crown 34.8°Girdle: MediumPavilion 40.6°Culet: NoneDepth 61.6%

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 29
Current: $1,556 CAD|Low: $268 CAD|High: $1,572 CAD|Avg: $767 CAD|+0.1%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
October 31, 2026
Retailer 7$268 CAD
Retailer 9$332 CAD
Retailer 2$557 CAD
Retailer 10$580 CAD
Retailer 4$594 CAD
Retailer 3$604 CAD
Retailer 6$844 CAD
Retailer 5$992 CAD
Retailer 8$1,229 CAD
MOH London$1,556 CAD

44 data points across 10 retailers

15 retailers$268 CAD to $1,556 CAD

A
Cheapest Retailer
-
$268 CAD
$192 USD
A
Retailer 2
-
$312 CAD
$223 USD
View
A
Retailer 3
-
$332 CAD
$238 USD
View
A
Retailer 4
-
$332 CAD
$238 USD
View
A
Retailer 5
-
$557 CAD
€380 EUR
View
B+
Retailer 6
-
$580 CAD
$415 USD
View
A
Retailer 7
-
$594 CAD
£335 GBP
View
A
Retailer 8
-
$604 CAD
£340 GBP
View
A
Retailer 9
-
$661 CAD
$473 USD
View
B+
Retailer 10
-
$844 CAD
$604 USD
View
B+
Retailer 11
-
$992 CAD
$710 USD
View
B
Retailer 12
-
$1,069 CAD
$765 USD
View
B+
Retailer 13
-
$1,143 CAD
$818 USD
View
B
Retailer 14
-
$1,229 CAD
$880 USD
View
Most Expensive
B
MOH London
LG816613920 · Oct 26
$1,556 CAD
£877 GBP
View
14 more retailers have this diamond
Prices start from $268 CADSave up to $1,288 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
$268 CAD