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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 $374 NZD
As of November 4, 2026
Save $1,455 NZD (80%) vs most expensive(unlock to see where)
9 retailers carry this diamond
Most expensive: $1,829 NZD at MOH London · As of November 5, 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 November 4, 2026, with prices from $374 to $1,829, a $1,455 spread on the same certified stone. MOH London lists it at $1,829. 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
Colour
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: Nov 4
Current: $1,829 NZD|Low: $374 NZD|High: $1,856 NZD|Avg: $984 NZD|-0.5%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
November 5, 2026
Retailer 5$374 NZD
Retailer 7$621 NZD
Retailer 4$729 NZD
Retailer 3$789 NZD
Retailer 2$836 NZD
Retailer 6$853 NZD
Retailer 9$1,029 NZD
Retailer 8$1,778 NZD
MOH London$1,829 NZD

43 data points across 9 retailers

9 retailers$374 NZD to $1,829 NZD

A
Cheapest Retailer
-
$374 NZD
Final sale: no returns
B+
Retailer 2
-
$621 NZD
View
B+
Retailer 3
-
$729 NZD
View
B+
Retailer 4
-
$789 NZD
View
B+
Retailer 5
-
$836 NZD
View
B+
Retailer 6
-
$853 NZD
View
Retailer 7
-
$1,098 NZD
View
Price last confirmed 88 days ago
B
Retailer 8
-
$1,778 NZD
View
Most Expensive
B
MOH London
LG605341016 · Nov 5
$1,829 NZD
£812 GBP
View
8 more retailers have this diamond
Prices start from $374 NZDSave up to $1,455 NZD

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
$374 NZD