Princess|Lab Grown|IGI

1.23ct G VS1 Princess Lab Grown Diamond

GD • G/VS1 • IGI LG605341016

Shape and cutting style on the report: Princess cut

Certificate IGI LG605341016

Diamond specifications and retailer prices

From $211 USD
As of October 30, 2026
Save $829 USD (80%) vs most expensive(unlock to see where)
9 retailers carry this diamond
Most expensive: $1,040 USD at MOH London · As of October 29, 2026
View at MOH London

About this 1.23ct lab-grown princess diamond

This 1.23ct lab-grown princess sits in the classic one-carat band, graded G colour (near-colourless) and VS1 clarity (very-slightly-included), with a standard cut grade and certified by IGI LG605341016 or 605341016. Listed at 9 retailers as of October 29, 2026, with prices from $211 to $1,040, a $829 spread on the same certified stone. MOH London lists it at $1,040. Cut grade matters more than carat or clarity for visible brilliance. If you can shift budget toward an Excellent or Ideal cut, do it before chasing higher colour or clarity.

The 4Cs

1.23
Carat
G
Color
VS1
Clarity
Good
Cut

Specifications

CutGood
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle44.4°
Pavilion angle38.4°
OriginLab Grown
Grading LabIGI
CertificateIGI LG605341016
Dimensions5.91 × 5.81 × 4.18 mm
L/W Ratio1.02
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
5.91 mm5.81 mm1.23 ctG / VS1
OriginLab Grown
CutGood
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG605341016
Side View
Table 71.0%Crown 44.4°Girdle: MED-STKPavilion 38.4°Culet: NoneDepth 71.9%

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: Oct 30
Current: $1,040 USD|Low: $140 USD|High: $1,046 USD|Avg: $546 USD|+0.4%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
October 31, 2026
Retailer 5$211 USD
Retailer 7$350 USD
Retailer 4$411 USD
Retailer 3$443 USD
Retailer 2$472 USD
Retailer 6$481 USD
Retailer 9$580 USD
Retailer 8$1,002 USD
MOH London$1,040 USD

43 data points across 9 retailers

9 retailers$211 USD to $1,040 USD

A
Cheapest Retailer
-
$211 USD
Final sale: no returns
B+
Retailer 2
-
$350 USD
View
B+
Retailer 3
-
$411 USD
View
B+
Retailer 4
-
$443 USD
ZAR 7,163 ZAR
View
B+
Retailer 5
-
$472 USD
£372 GBP
View
B+
Retailer 6
-
$481 USD
View
Retailer 7
-
$620 USD
View
Price last confirmed 82 days ago
B
Retailer 8
-
$1,002 USD
View
Most Expensive
B
MOH London
LG605341016 · Oct 29
$1,040 USD
£819 GBP
View
8 more retailers have this diamond
Prices start from $211 USDSave up to $829 USD

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 Princess
$211 USD