CaratHunter
Plans
Round|Lab Grown|IGI

1.23ct E SI1 Round Lab Grown Diamond

EX • E/SI1 • IGI LG691548634

Shape and cutting style on the report: Round brilliant

Certificate IGI LG691548634

Diamond specifications and retailer prices

From $413 CAD
As of November 5, 2026
Save $1,043 CAD (72%) vs most expensive(unlock to see where)
6 retailers carry this diamond
Most expensive: $1,456 CAD at MOH London · As of November 5, 2026
View at MOH London

About this 1.23ct lab-grown round diamond

This 1.23ct lab-grown round sits in the classic one-carat band, graded E colour (colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG691548634 or 691548634. Listed at 6 retailers as of November 5, 2026, with prices from $413 to $1,456, a $1,043 spread on the same certified stone. MOH London lists it at $1,456. 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

1.23
Carat
E
Color
SI1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle34.4°
Pavilion angle41.5°
OriginLab Grown
Grading LabIGI
CertificateIGI LG691548634
Dimensions6.86 × 6.81 × 4.25 mm
L/W Ratio1.01
Girdle conditionFaceted
Culet sizePointed
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
6.86 mm6.81 mm1.23 ctE / SI1
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG691548634
Side View
Table 59.0%Crown 34.4°Girdle: MED-STKPavilion 41.5°Culet: NoneDepth 62.2%

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: Nov 5
Current: $1,456 CAD|Low: $413 CAD|High: $1,477 CAD|Avg: $682 CAD|-1.3%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
November 6, 2026
Retailer 6$413 CAD
Retailer 4$511 CAD
Retailer 2$554 CAD
Retailer 3$621 CAD
Retailer 5$633 CAD
MOH London$1,456 CAD

42 data points across 6 retailers

6 retailers$413 CAD to $1,456 CAD

A
Cheapest Retailer
-
$413 CAD
B+
Retailer 2
-
$511 CAD
View
B+
Retailer 3
-
$554 CAD
View
B+
Retailer 4
-
$621 CAD
View
B+
Retailer 5
-
$633 CAD
View
Most Expensive
B
MOH London
LG691548634 · Nov 5
$1,456 CAD
£821 GBP
View
5 more retailers have this diamond
Prices start from $413 CADSave up to $1,043 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
1.23ct Round
$413 CAD