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1.23ct F SI1 Round Lab Grown Diamond

VG • F/SI1 • IGI LG741564265

Shape and cutting style on the report: Round brilliant

Certificate IGI LG741564265

Diamond specifications and retailer prices

From $274 NZD
As of November 1, 2026
Save $1,318 NZD (83%) vs most expensive(unlock to see where)
12 retailers carry this diamond
Most expensive: $1,592 NZD at MOH London · As of November 1, 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 F colour (colourless) and SI1 clarity (slightly-included), with a very-good cut grade and certified by IGI LG741564265 or 741564265. Listed at 12 retailers as of November 1, 2026, with prices from $274 to $1,592, a $1,318 spread on the same certified stone. MOH London lists it at $1,592. 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
F
Colour
SI1
Clarity
Very Good
Cut

Specifications

CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle37.8°
Pavilion angle40.8°
OriginLab Grown
Grading LabIGI
CertificateIGI LG741564265
Dimensions6.88 × 6.80 × 4.19 mm
L/W Ratio1.01
Girdle conditionFaceted
Culet sizePointed
Cert comments
As Grown - No indication of post-growth treatment This Laboratory Grown Diamond was created by High Pressure High Temperature (HPHT) growth process Type II
Top View
6.88 mm6.80 mm1.23 ctF / SI1
OriginLab Grown
CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG741564265
Side View
Table 62.0%Crown 37.8°Girdle: MED-STKPavilion 40.8°Culet: NoneDepth 61.1%

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 1
Current: $1,592 NZD|Low: $274 NZD|High: $1,693 NZD|Avg: $771 NZD|-6.0%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
November 6, 2026
Retailer 9$274 NZD
Retailer 10$307 NZD
Retailer 4$352 NZD
Retailer 7$592 NZD
Retailer 2$615 NZD
Retailer 3$624 NZD
Retailer 12$678 NZD
Retailer 11$796 NZD
Retailer 5$803 NZD
Retailer 6$913 NZD
Retailer 8$992 NZD
MOH London$1,592 NZD

37 data points across 12 retailers

12 retailers$274 NZD to $1,592 NZD

A
Cheapest Retailer
-
$274 NZD
A
Retailer 2
-
$307 NZD
View
Final sale: no returns
Retailer 3
-
$352 NZD
View
Price last confirmed 13 days ago
A
Retailer 4
-
$592 NZD
View
B+
Retailer 5
-
$615 NZD
View
B+
Retailer 6
-
$624 NZD
View
A
Retailer 7
-
$678 NZD
View
B+
Retailer 8
-
$796 NZD
View
B+
Retailer 9
-
$803 NZD
View
B
Retailer 10
-
$913 NZD
View
B
Retailer 11
-
$992 NZD
View
Most Expensive
B
MOH London
LG741564265 · Nov 1
$1,592 NZD
£695 GBP
View
11 more retailers have this diamond
Prices start from $274 NZDSave up to $1,318 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 Round
$274 NZD