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 $555 USD
£437 GBP
As of October 29, 2026
Save $765 USD (58%) vs most expensive(unlock to see where)
2 retailers carry this diamond
Most expensive: $1,320 USD 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 $555 to $1,320, a $765 spread on the same certified stone. Brilliant Earth lists it at $1,320. 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
Color
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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Price History

Last verified: Oct 29
Current: $1,320 USD|Low: $96 USD|High: $1,320 USD|Avg: $555 USD
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$135 USD
Retailer 5$290 USD
Retailer 4$330 USD
Retailer 2$357 USD
Retailer 10$540 USD
Retailer 6$588 USD
Retailer 7$646 USD
Retailer 9$769 USD
Retailer 8$1,074 USD
Brilliant Earth$1,320 USD

64 data points across 10 retailers

2 retailers$555 USD to $1,320 USD

B+
Cheapest Retailer
-
$555 USD
£437 GBP
Most Expensive
C
Brilliant Earth
14341767A · Oct 29
$1,320 USD
View
1 more retailer has this diamond
Prices start from $555 USDSave up to $765 USD

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
$555 USD