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Radiant|Lab Grown|IGI

1.23ct I VS2 Radiant Lab Grown Diamond

GD • I/VS2 • IGI LG514255268

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

Certificate IGI LG514255268

Diamond specifications and retailer prices

From £529 GBP
$710 USD
As of October 31, 2026
4 retailers carry this diamond
Most expensive: £1,912 GBP at Loose Grown Diamond · As of November 1, 2026
View at Loose Grown Diamond

About this 1.23ct lab-grown radiant diamond

This 1.23ct lab-grown radiant sits in the classic one-carat band, graded I colour (near-colourless) and VS2 clarity (very-slightly-included), with a standard cut grade and certified by IGI LG514255268 or 514255268. Listed at 4 retailers as of October 31, 2026. 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
I
Colour
VS2
Clarity
Good
Cut

Specifications

CutGood
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle53.2°
Pavilion angle30.7°
OriginLab Grown
Grading LabIGI
CertificateIGI LG514255268
Dimensions7.28 × 5.22 × 3.54 mm
L/W Ratio1.39
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
7.28 mm5.22 mm1.23 ctI / VS2
OriginLab Grown
CutGood
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG514255268
Side View
Table 65.0%Crown 53.2°Girdle: Slightly ThickPavilion 30.7°Culet: NoneDepth 67.8%

Caratlytics Score

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B
Good
Decent quality, room for better deals
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Price History

Last verified: Oct 31
Current: £1,912 GBP|Low: £529 GBP|High: £3,507 GBP|Avg: £1,693 GBP|+1.0%
Loose Grown Diamond
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
November 1, 2026
Retailer 3£529 GBP
Retailer 4£1,212 GBP
Retailer 6£1,338 GBP
Retailer 7£1,372 GBP
Retailer 5£1,645 GBP
Loose Grown Diamond£1,912 GBP
Retailer 2£3,461 GBP

12 data points across 7 retailers

4 retailers

B
Cheapest Retailer
-
£529 GBP
$710 USD
Retailer 2
-
£1,212 GBP
$1,626 USD
View
Price last confirmed 21 days ago
Most Expensive
Loose Grown Diamond
514255268 · Nov 1
£1,912 GBP
$2,566 USD
View
Price under review
2 more retailers have this diamond
Prices start from £529 GBP

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
£529 GBP