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Radiant|Lab Grown|IGI

1.21ct H VS1 Radiant Lab Grown Diamond

ID • H/VS1 • IGI LG549298081

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

Certificate IGI LG549298081

Diamond specifications and retailer prices

From $445 USD
£351 GBP
As of November 2, 2026
2 retailers carry this diamond
Only listing: $445 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 LG549298081 or 549298081. Listed at 2 retailers as of November 2, 2026. 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
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle41.7°
Pavilion angle32.8°
OriginLab Grown
Grading LabIGI
CertificateIGI LG549298081
Dimensions7.48 × 5.32 × 3.52 mm
L/W Ratio1.41
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
7.48 mm5.32 mm1.21 ctH / VS1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG549298081
Side View
Table 64.0%Crown 41.7°Girdle: Slightly ThickPavilion 32.8°Culet: NoneDepth 66.2%

Caratlytics Score

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

Last verified: Nov 2
Current: $474 USD|Low: $171 USD|High: $5,466 USD|Avg: $947 USD|-1.7%
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April 7, 2026
Retailer 7$197 USD
Retailer 10$286 USD
Retailer 5$301 USD
Retailer 4$380 USD
Retailer 8$397 USD
Retailer 1$474 USD
Retailer 11$479 USD
Retailer 6$524 USD
Retailer 9$604 USD
Retailer 12$605 USD
Retailer 3$830 USD
Retailer 2$5,466 USD

47 data points across 12 retailers

2 retailers

B+
Diamond Quarter
1.21VS1HLG812B5DN · Nov 2
$445 USD
£351 GBP
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B+
1.21ct Radiant
$445 USD