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Radiant|Lab Grown|IGI

1.21ct G VS2 Radiant Lab Grown Diamond

GD • G/VS2 • IGI LG670412077

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

Certificate IGI LG670412077

Diamond specifications and retailer prices

From €405 EUR
$452 USD
As of November 1, 2026
Save €84 EUR (17%) vs most expensive(unlock to see where)
2 retailers carry this diamond
Most expensive: €489 EUR 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 LG670412077 or 670412077. Listed at 2 retailers as of October 31, 2026, with prices from €405 to €489, a €84 spread on the same certified stone. Diamond Quarter lists it at €489. 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 angle43.2°
Pavilion angle34.3°
OriginLab Grown
Grading LabIGI
CertificateIGI LG670412077
Dimensions7.77 × 5.20 × 3.46 mm
L/W Ratio1.49
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
7.77 mm5.20 mm1.21 ctG / VS2
OriginLab Grown
CutGood
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG670412077
Side View
Table 62.0%Crown 43.2°Girdle: MediumPavilion 34.3°Culet: NoneDepth 66.5%

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: Nov 1
Current: €405 EUR|Low: €397 EUR|High: €580 EUR|Avg: €457 EUR|-30.2%
September 23, 2026
Retailer 1€405 EUR

4 data points across 1 retailer

2 retailers€405 EUR to €489 EUR

B+
Cheapest Retailer
-
€405 EUR
$452 USD
Most Expensive
B
Diamond Quarter
1.21VS2GLG775DD1N · Oct 31
€489 EUR
£430 GBP
View
1 more retailer has this diamond
Prices start from €405 EURSave up to €84 EUR

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
€405 EUR