Radiant|Lab Grown|IGI

1.23ct G VS1 Radiant Lab Grown Diamond

VG • G/VS1 • IGI LG683557896

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

Certificate IGI LG683557896

Diamond specifications and retailer prices

From $461 USD
As of November 2, 2026
Save $109 USD (19%) vs most expensive(unlock to see where)
2 retailers carry this diamond
Most expensive: $570 USD at Diamond Quarter · As of November 2, 2026
View at Diamond Quarter

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 LG683557896 or 683557896. Listed at 2 retailers as of November 2, 2026, with prices from $461 to $570, a $109 spread on the same certified stone. Diamond Quarter lists it at $570. 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 angle43.2°
Pavilion angle35.9°
OriginLab Grown
Grading LabIGI
CertificateIGI LG683557896
Dimensions7.59 × 5.30 × 3.58 mm
L/W Ratio1.43
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
7.59 mm5.30 mm1.23 ctG / VS1
OriginLab Grown
CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG683557896
Side View
Table 65.0%Crown 43.2°Girdle: MED-STKPavilion 35.9°Culet: NoneDepth 67.5%

Caratlytics Score

How it works →
B+
Very Good
Strong quality and value balance
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Price History

Last verified: Nov 2
Current: $461 USD|Low: $452 USD|High: $663 USD|Avg: $521 USD|-30.5%
September 23, 2026
Retailer 1$461 USD

4 data points across 1 retailer

2 retailers$461 USD to $570 USD

B+
Cheapest Retailer
-
$461 USD
Most Expensive
B+
Diamond Quarter
1.23VS1GLG96D5D6N · Nov 2
$570 USD
£449 GBP
View
1 more retailer has this diamond
Prices start from $461 USDSave up to $109 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
$461 USD