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Radiant|Lab Grown|IGI

1.23ct E VS2 Radiant Lab Grown Diamond

VG • E/VS2 • IGI LG591376508

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

Certificate IGI LG591376508

Diamond specifications and retailer prices

From $790 AUD
£437 GBP
As of October 29, 2026
Save $1,089 AUD (58%) vs most expensive(unlock to see where)
2 retailers carry this diamond
Most expensive: $1,879 AUD at Brilliant Earth · As of October 29, 2026
View at Brilliant Earth

About this 1.23ct lab-grown radiant diamond

This 1.23ct lab-grown radiant sits in the classic one-carat band, graded E colour (colourless) and VS2 clarity (very-slightly-included), with a very-good cut grade and certified by IGI LG591376508 or 591376508. Listed at 2 retailers as of October 29, 2026, with prices from $790 to $1,879, a $1,089 spread on the same certified stone. Brilliant Earth lists it at $1,879. 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
E
Colour
VS2
Clarity
Very Good
Cut

Specifications

CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle41.9°
Pavilion angle30.4°
OriginLab Grown
Grading LabIGI
CertificateIGI LG591376508
Dimensions7.92 × 5.22 × 3.36 mm
L/W Ratio1.52
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
7.92 mm5.22 mm1.23 ctE / VS2
OriginLab Grown
CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG591376508
Side View
Table 59.0%Crown 41.9°Girdle: Slightly ThickPavilion 30.4°Culet: NoneDepth 64.4%

Caratlytics Score

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

Price History

Last verified: Oct 29
Current: $1,879 AUD|Low: $137 AUD|High: $1,879 AUD|Avg: $790 AUD
Brilliant Earth
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
September 2, 2026
Retailer 3$192 AUD
Retailer 5$413 AUD
Retailer 4$469 AUD
Retailer 2$508 AUD
Retailer 10$768 AUD
Retailer 6$837 AUD
Retailer 7$920 AUD
Retailer 9$1,094 AUD
Retailer 8$1,528 AUD
Brilliant Earth$1,879 AUD

64 data points across 10 retailers

2 retailers$790 AUD to $1,879 AUD

B+
Cheapest Retailer
-
$790 AUD
£437 GBP
Most Expensive
C
Brilliant Earth
14341767A · Oct 29
$1,879 AUD
$1,320 USD
View
1 more retailer has this diamond
Prices start from $790 AUDSave up to $1,089 AUD

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
$790 AUD