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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 €136 EUR
$152 USD
As of November 1, 2026
Save €651 EUR (83%) vs most expensive(unlock to see where)
12 retailers carry this diamond
Most expensive: €787 EUR 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 €136 to €787, a €651 spread on the same certified stone. MOH London lists it at €787. 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
Color
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
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See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 1
Current: €787 EUR|Low: €136 EUR|High: €837 EUR|Avg: €382 EUR|-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 1, 2026
Retailer 8€136 EUR
Retailer 9€152 EUR
Retailer 4€174 EUR
Retailer 5€292 EUR
Retailer 2€293 EUR
Retailer 12€308 EUR
Retailer 11€335 EUR
Retailer 10€393 EUR
Retailer 3€441 EUR
Retailer 6€445 EUR
Retailer 7€490 EUR
MOH London€787 EUR

36 data points across 12 retailers

12 retailers€136 EUR to €787 EUR

A
Cheapest Retailer
-
€136 EUR
$152 USD
A
Retailer 2
-
€152 EUR
$170 USD
View
Final sale: no returns
Retailer 3
-
€174 EUR
$195 USD
View
Price last confirmed 8 days ago
A
Retailer 4
-
€292 EUR
View
A
Retailer 5
-
€293 EUR
£258 GBP
View
B+
Retailer 6
-
€308 EUR
$346 USD
View
A
Retailer 7
-
€335 EUR
$376 USD
View
B+
Retailer 8
-
€393 EUR
$441 USD
View
B+
Retailer 9
-
€441 EUR
$495 USD
View
B
Retailer 10
-
€445 EUR
$499 USD
View
B
Retailer 11
-
€490 EUR
$550 USD
View
Most Expensive
B
MOH London
LG741564265 · Nov 1
€787 EUR
£695 GBP
View
11 more retailers have this diamond
Prices start from €136 EURSave up to €651 EUR

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
€136 EUR