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Radiant|Lab Grown|IGI

1.21ct G VS1 Radiant Lab Grown Diamond

ID • G/VS1 • IGI LG570363543

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

Certificate IGI LG570363543

Diamond specifications and retailer prices

From €142 EUR
As of November 4, 2026
Save €782 EUR (85%) vs most expensive(unlock to see where)
18 retailers carry this diamond
Most expensive: €923 EUR at Flawless Fine Jewelry · As of November 4, 2026
View at Flawless Fine Jewelry

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 VS1 clarity (very-slightly-included), with a top-tier cut grade and certified by IGI LG570363543 or 570363543. Listed at 18 retailers as of November 4, 2026, with prices from €142 to €923, a €782 spread on the same certified stone. Flawless Fine Jewelry lists it at €923. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.21
Carat
G
Colour
VS1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle47.7°
Pavilion angle31.3°
OriginLab Grown
Grading LabIGI
CertificateIGI LG570363543
Dimensions7.06 × 5.25 × 3.60 mm
L/W Ratio1.34
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
7.06 mm5.25 mm1.21 ctG / VS1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG570363543
Side View
Table 65.5%Crown 47.7°Girdle: MediumPavilion 31.3°Culet: NoneDepth 68.6%

Caratlytics Score

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A
Excellent
Excellent quality and great value
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Price History

Last verified: Nov 4
Current: €923 EUR|Low: €111 EUR|High: €950 EUR|Avg: €381 EUR|-2.9%
Flawless Fine Jewelry
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
Retailer 13
Retailer 14
Retailer 15
Retailer 16
Retailer 17
November 4, 2026
Retailer 14€142 EUR
Retailer 4€165 EUR
Retailer 8€165 EUR
Retailer 6€176 EUR
Retailer 15€176 EUR
Retailer 9€205 EUR
Retailer 12€297 EUR
Retailer 11€303 EUR
Retailer 3€318 EUR
Retailer 16€354 EUR
Retailer 5€381 EUR
Retailer 7€399 EUR
Retailer 10€429 EUR
Retailer 17€566 EUR
Retailer 13€597 EUR
Retailer 2€820 EUR
Flawless Fine Jewelry€923 EUR

28 data points across 17 retailers

18 retailers€142 EUR to €923 EUR

A
Cheapest Retailer
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€142 EUR
A
Retailer 2
-
€165 EUR
View
Final sale: no returns
A
Retailer 3
-
€165 EUR
View
Retailer 4
-
€176 EUR
View
Price last confirmed 11 days ago
A
Retailer 5
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€176 EUR
View
A
Retailer 6
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€205 EUR
View
A
Retailer 7
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€297 EUR
View
A
Retailer 8
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€303 EUR
View
B+
Retailer 9
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€318 EUR
View
Retailer 10
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€354 EUR
View
Price last confirmed 31 days ago
A
Retailer 11
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€381 EUR
View
A
Retailer 12
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€399 EUR
View
A
Retailer 13
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€429 EUR
View
B+
Retailer 14
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€465 EUR
View
B+
Retailer 15
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€566 EUR
View
B
Retailer 16
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€597 EUR
View
B
Retailer 17
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€820 EUR
View
Most Expensive
B
Flawless Fine Jewelry
867B905EA · Nov 4
€923 EUR
£816 GBP
View
17 more retailers have this diamond
Prices start from €142 EURSave up to €782 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.

A
1.21ct Radiant
€142 EUR