CaratHunter
Plans
Radiant|Lab Grown|IGI

1.21ct H VS1 Radiant Lab Grown Diamond

EX • H/VS1 • IGI LG642493045

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

Certificate IGI LG642493045

Diamond specifications and retailer prices

From $422 USD
£332 GBP
As of November 2, 2026
1 retailer carries this diamond
Only listing: $422 USD at Diamond Quarter
Only one retailer lists this diamond right now, and it is shown above, so there is nothing to unlock. Similar diamonds are carried by several retailers.
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 H colour (near-colourless) and VS1 clarity (very-slightly-included), with a top-tier cut grade and certified by IGI LG642493045 or 642493045. Listed at a single retailer as of November 2, 2026. If it later appears at another store, Carat Hunter will surface the price comparison automatically. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.21
Carat
H
Color
VS1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle44.1°
Pavilion angle35.5°
OriginLab Grown
Grading LabIGI
CertificateIGI LG642493045
Dimensions7.67 × 5.28 × 3.57 mm
L/W Ratio1.45
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
7.67 mm5.28 mm1.21 ctH / VS1
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG642493045
Side View
Table 66.0%Crown 44.1°Girdle: MediumPavilion 35.5°CuletDepth 67.6%

Caratlytics Score

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

Price History

Last verified: Nov 2
Current: $422 USD|Low: $422 USD|High: $422 USD|Avg: $422 USD
September 26, 2026
Diamond Quarter$422 USD

1 data point across 1 retailer

1 retailer

B+
Diamond Quarter
1.21VS1HLG450B34N · Nov 2
$422 USD
£332 GBP
View

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
$422 USD