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Round|Lab Grown|IGI

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 $195 SGD
As of November 1, 2026
Save $936 SGD (83%) vs most expensive(unlock to see where)
12 retailers carry this diamond
Most expensive: $1,131 SGD 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 $195 to $1,131, a $936 spread on the same certified stone. MOH London lists it at $1,131. 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

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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 1
Current: $1,131 SGD|Low: $195 SGD|High: $1,203 SGD|Avg: $548 SGD|-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$195 SGD
Retailer 10$218 SGD
Retailer 4$250 SGD
Retailer 7$420 SGD
Retailer 2$437 SGD
Retailer 3$443 SGD
Retailer 12$482 SGD
Retailer 11$565 SGD
Retailer 5$570 SGD
Retailer 6$648 SGD
Retailer 8$705 SGD
MOH London$1,131 SGD

37 data points across 12 retailers

12 retailers$195 SGD to $1,131 SGD

A
Cheapest Retailer
-
$195 SGD
A
Retailer 2
-
$218 SGD
View
Final sale: no returns
Retailer 3
-
$250 SGD
View
Price last confirmed 13 days ago
A
Retailer 4
-
$420 SGD
View
B+
Retailer 5
-
$437 SGD
View
B+
Retailer 6
-
$443 SGD
View
A
Retailer 7
-
$482 SGD
View
B+
Retailer 8
-
$565 SGD
View
B+
Retailer 9
-
$570 SGD
View
B
Retailer 10
-
$648 SGD
View
B
Retailer 11
-
$705 SGD
View
Most Expensive
B
MOH London
LG741564265 · Nov 1
$1,131 SGD
£695 GBP
View
11 more retailers have this diamond
Prices start from $195 SGDSave up to $936 SGD

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
$195 SGD