Radiant|Lab Grown|IGI

1.21ct D VS1 Radiant Lab Grown Diamond

VG • D/VS1 • IGI LG831692380

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

Certificate IGI LG831692380

Diamond specifications and retailer prices

From €189 EUR
$211 USD
As of October 30, 2026
Save €910 EUR (83%) vs most expensive(unlock to see where)
19 retailers carry this diamond
Most expensive: €1,098 EUR at Reve Diamonds · As of November 1, 2026
View at Reve Diamonds

About this 1.21ct lab-grown radiant diamond

This 1.21ct lab-grown radiant sits in the classic one-carat band, graded D colour (colourless) and VS1 clarity (very-slightly-included), with a very-good cut grade and certified by IGI LG831692380 or 831692380. Listed at 19 retailers as of October 30, 2026, with prices from €189 to €1,098, a €910 spread on the same certified stone. Reve Diamonds lists it at €1,098. 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
D
Color
VS1
Clarity
Very Good
Cut

Specifications

CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle35.5°
Pavilion angle35.3°
OriginLab Grown
Grading LabIGI
CertificateIGI LG831692380
Dimensions8.07 × 5.21 × 3.46 mm
L/W Ratio1.55
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
8.07 mm5.21 mm1.21 ctD / VS1
OriginLab Grown
CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG831692380
Side View
Table 64.0%Crown 35.5°Girdle: MED-STKPavilion 35.3°Culet: NoneDepth 66.4%

Caratlytics Score

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A
Excellent
Excellent quality and great value
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Price History

Last verified: Oct 30
Current: €403 EUR|Low: €189 EUR|High: €1,098 EUR|Avg: €569 EUR
Retailer 1
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Retailer 18
Reve Diamonds
November 1, 2026
Retailer 4€189 EUR
Retailer 3€210 EUR
Retailer 16€218 EUR
Retailer 6€234 EUR
Retailer 12€312 EUR
Retailer 15€394 EUR
Retailer 5€401 EUR
Retailer 1€403 EUR
Retailer 8€420 EUR
Retailer 13€432 EUR
Retailer 18€451 EUR
Retailer 9€646 EUR
Retailer 14€751 EUR
Retailer 17€754 EUR
Retailer 7€760 EUR
Retailer 10€799 EUR
Retailer 11€937 EUR
Retailer 2€985 EUR
Reve Diamonds€1,098 EUR

6 data points across 19 retailers

19 retailers€189 EUR to €1,098 EUR

A
Cheapest Retailer
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€189 EUR
$211 USD
A
Retailer 2
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€210 EUR
$235 USD
View
Final sale: no returns
A
Retailer 3
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€218 EUR
$244 USD
View
A
Retailer 4
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€234 EUR
$261 USD
View
A
Retailer 5
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€312 EUR
£275 GBP
View
A
Retailer 6
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€394 EUR
View
A
Retailer 7
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€401 EUR
$448 USD
View
A
Retailer 8
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€403 EUR
ZAR 7,281 ZAR
View
B+
Retailer 9
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€420 EUR
$469 USD
View
A
Retailer 10
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€432 EUR
£380 GBP
View
B+
Retailer 11
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€451 EUR
$504 USD
View
B+
Retailer 12
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€646 EUR
A$1,111 AUD
View
B
Retailer 13
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€751 EUR
$839 USD
View
B
Retailer 14
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€754 EUR
$842 USD
View
B
Retailer 15
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€760 EUR
SGD 1,147 SGD
View
B
Retailer 16
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€799 EUR
$892 USD
View
B
Retailer 17
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€937 EUR
£824 GBP
View
B
Retailer 18
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€985 EUR
$1,100 USD
View
Most Expensive
B
Reve Diamonds
6D92BDA8B · Nov 1
€1,098 EUR
$1,227 USD
View
18 more retailers have this diamond
Prices start from €189 EURSave up to €910 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
€189 EUR