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Round|Lab Grown|IGI

1.23ct H VS1 Round Lab Grown Diamond

ID • H/VS1 • IGI LG818686333

Shape and cutting style on the report: Round brilliant

Certificate IGI LG818686333

Diamond specifications and retailer prices

From $285 CAD
$204 USD
As of October 29, 2026
Save $1,379 CAD (83%) vs most expensive(unlock to see where)
16 retailers carry this diamond
Most expensive: $1,664 CAD at MOH London · As of October 29, 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 H colour (near-colourless) and VS1 clarity (very-slightly-included), with a top-tier cut grade and certified by IGI LG818686333 or 818686333. Listed at 16 retailers as of October 29, 2026, with prices from $285 to $1,664, a $1,379 spread on the same certified stone. MOH London lists it at $1,664. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.23
Carat
H
Color
VS1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle33.3°
Pavilion angle40.9°
OriginLab Grown
Grading LabIGI
CertificateIGI LG818686333
Dimensions6.93 × 6.91 × 4.21 mm
L/W Ratio1.00
Girdle conditionFaceted
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
6.93 mm6.91 mm1.23 ctH / VS1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG818686333
Side View
Table 56.0%Crown 33.3°Girdle: MediumPavilion 40.9°Culet: NoneDepth 60.9%

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: $1,664 CAD|Low: $285 CAD|High: $1,675 CAD|Avg: $840 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
October 31, 2026
Retailer 9$285 CAD
Retailer 12$353 CAD
Retailer 4$592 CAD
Retailer 7$599 CAD
Retailer 13$613 CAD
Retailer 2$645 CAD
Retailer 11$733 CAD
Retailer 10$852 CAD
Retailer 6$865 CAD
Retailer 8$914 CAD
Retailer 5$1,213 CAD
Retailer 3$1,278 CAD
MOH London$1,664 CAD

26 data points across 13 retailers

16 retailers$285 CAD to $1,664 CAD

A
Cheapest Retailer
-
$285 CAD
$204 USD
A
Retailer 2
-
$331 CAD
$237 USD
View
A
Retailer 3
-
$353 CAD
$253 USD
View
A
Retailer 4
-
$353 CAD
$253 USD
View
A
Retailer 5
-
$592 CAD
$424 USD
View
Retailer 6
-
$599 CAD
ZAR 6,924 ZAR
View
Price last confirmed 9 days ago
A
Retailer 7
-
$613 CAD
$439 USD
View
B+
Retailer 8
-
$645 CAD
€440 EUR
View
Retailer 9
-
$733 CAD
$525 USD
View
Price last confirmed 13 days ago
B+
Retailer 10
-
$852 CAD
$610 USD
View
B+
Retailer 11
-
$865 CAD
A$953 AUD
View
B+
Retailer 12
-
$914 CAD
$654 USD
View
B
Retailer 13
-
$1,138 CAD
$815 USD
View
B
Retailer 14
-
$1,213 CAD
$868 USD
View
B
Retailer 15
-
$1,305 CAD
$934 USD
View
Most Expensive
B
MOH London
LG818686333 · Oct 29
$1,664 CAD
£938 GBP
View
15 more retailers have this diamond
Prices start from $285 CADSave up to $1,379 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
$285 CAD