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Radiant|Lab Grown|IGI

1.23ct G VS1 Radiant Lab Grown Diamond

VG • G/VS1 • IGI LG612346256

Shape and cutting style on the report: Cut cornered rectangular modified brilliant

Certificate IGI LG612346256

Diamond specifications and retailer prices

From €313 EUR
$351 USD
As of October 28, 2026
Save €873 EUR (74%) vs most expensive(unlock to see where)
5 retailers carry this diamond
Most expensive: €1,186 EUR at Jared · As of October 28, 2026
View at Jared

About this 1.23ct lab-grown radiant diamond

This 1.23ct lab-grown radiant sits in the classic one-carat band, graded G colour (near-colourless) and VS1 clarity (very-slightly-included), with a very-good cut grade and certified by IGI LG612346256 or 612346256. Listed at 5 retailers as of October 28, 2026, with prices from €313 to €1,186, a €873 spread on the same certified stone. Jared lists it at €1,186. 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
Very Good
Cut

Specifications

CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle45.5°
Pavilion angle34.8°
OriginLab Grown
Grading LabIGI
CertificateIGI LG612346256
Dimensions7.64 × 5.21 × 3.56 mm
L/W Ratio1.47
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
7.64 mm5.21 mm1.23 ctG / VS1
OriginLab Grown
CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG612346256
Side View
Table 68.0%Crown 45.5°Girdle: MediumPavilion 34.8°Culet: NoneDepth 68.3%

Caratlytics Score

How it works →
B+
Very Good
Strong quality and value balance
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Oct 28
Current: €1,186 EUR|Low: €296 EUR|High: €1,471 EUR|Avg: €635 EUR|-19.4%
Jared
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
October 29, 2026
Retailer 3€313 EUR
Retailer 8€338 EUR
Retailer 6€390 EUR
Retailer 9€446 EUR
Retailer 10€529 EUR
Retailer 4€585 EUR
Retailer 7€763 EUR
Retailer 5€811 EUR
Retailer 2€889 EUR
Jared€1,186 EUR

14 data points across 10 retailers

5 retailers€313 EUR to €1,186 EUR

B+
Cheapest Retailer
-
€313 EUR
$351 USD
B
Retailer 2
-
€585 EUR
$656 USD
View
B
Retailer 3
-
€811 EUR
$910 USD
View
B
Retailer 4
-
€889 EUR
£785 GBP
View
Most Expensive
B
Jared
149859379 · Oct 28
€1,186 EUR
$1,330 USD
View
4 more retailers have this diamond
Prices start from €313 EURSave up to €873 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.

B+
1.23ct Radiant
€313 EUR