Radiant|Lab Grown|IGI

1.21ct G VS2 Radiant Lab Grown Diamond

GD • G/VS2 • IGI LG678563898

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

Certificate IGI LG678563898

Diamond specifications and retailer prices

From $452 USD
As of November 1, 2026
Save $94 USD (17%) vs most expensive(unlock to see where)
2 retailers carry this diamond
Most expensive: $546 USD at Diamond Quarter · As of October 31, 2026
View at Diamond Quarter

About this 1.21ct lab-grown radiant diamond

This 1.21ct lab-grown radiant sits in the classic one-carat band, graded G colour (near-colourless) and VS2 clarity (very-slightly-included), with a standard cut grade and certified by IGI LG678563898 or 678563898. Listed at 2 retailers as of October 31, 2026, with prices from $452 to $546, a $94 spread on the same certified stone. Diamond Quarter lists it at $546. 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

1.21
Carat
G
Color
VS2
Clarity
Good
Cut

Specifications

CutGood
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle42.8°
Pavilion angle35.5°
OriginLab Grown
Grading LabIGI
CertificateIGI LG678563898
Dimensions7.65 × 5.15 × 3.51 mm
L/W Ratio1.49
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
7.65 mm5.15 mm1.21 ctG / VS2
OriginLab Grown
CutGood
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG678563898
Side View
Table 66.0%Crown 42.8°Girdle: MediumPavilion 35.5°Culet: NoneDepth 68.2%

Caratlytics Score

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

Last verified: Nov 1
Current: $452 USD|Low: $444 USD|High: $643 USD|Avg: $567 USD|-9.1%
Retailer 1
Retailer 2
September 23, 2026
Retailer 1$452 USD
Retailer 2$643 USD

4 data points across 2 retailers

2 retailers$452 USD to $546 USD

B+
Cheapest Retailer
-
$452 USD
Most Expensive
B
Diamond Quarter
1.21VS2GLG98DC0BN · Oct 31
$546 USD
£430 GBP
View
1 more retailer has this diamond
Prices start from $452 USDSave up to $94 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+
1.21ct Radiant
$452 USD