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Radiant|Lab Grown|IGI

1.21ct E IF Radiant Lab Grown Diamond

EX • E/IF • IGI LG651411202

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

Certificate IGI LG651411202

Diamond specifications and retailer prices

From €178 EUR
$200 USD
As of November 2, 2026
Save €1,815 EUR (91%) vs most expensive(unlock to see where)
25 retailers carry this diamond
Most expensive: €1,993 EUR at Queensmith · As of October 27, 2026
View at Queensmith

About this 1.21ct lab-grown radiant diamond

This 1.21ct lab-grown radiant sits in the classic one-carat band, graded E colour (colourless) and IF clarity (flawless or internally-flawless), with a top-tier cut grade and certified by IGI LG651411202 or 651411202. Listed at 25 retailers as of October 27, 2026, with prices from €178 to €1,993, a €1,815 spread on the same certified stone. Queensmith lists it at €1,993. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.21
Carat
E
Colour
IF
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle38.1°
Pavilion angle35.5°
OriginLab Grown
Grading LabIGI
CertificateIGI LG651411202
Dimensions7.90 × 5.43 × 3.49 mm
L/W Ratio1.45
Culet sizePointed
Cert comments
As Grown - No indication of post-growth treatment This Laboratory Grown Diamond was created by High Pressure High Temperature (HPHT) growth process Type II
Top View
7.90 mm5.43 mm1.21 ctE / IF
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG651411202
Side View
Table 62.0%Crown 38.1°Girdle: MediumPavilion 35.5°Culet: NoneDepth 64.3%

Caratlytics Score

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A
Excellent
Excellent quality and great value
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See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 2
Current: €598 EUR|Low: €178 EUR|High: €1,712 EUR|Avg: €673 EUR|-5.8%
Retailer 1
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Retailer 23
November 2, 2026
Retailer 23€178 EUR
Retailer 10€200 EUR
Retailer 20€208 EUR
Retailer 5€222 EUR
Retailer 11€222 EUR
Retailer 12€259 EUR
Retailer 8€316 EUR
Retailer 14€342 EUR
Retailer 18€422 EUR
Retailer 3€440 EUR
Retailer 17€455 EUR
Retailer 22€539 EUR
Retailer 1€598 EUR
Retailer 4€715 EUR
Retailer 2€786 EUR
Retailer 15€940 EUR
Retailer 9€951 EUR
Retailer 13€974 EUR
Retailer 19€981 EUR
Retailer 7€1,066 EUR
Retailer 21€1,302 EUR
Retailer 16€1,685 EUR
Retailer 6€1,712 EUR

37 data points across 23 retailers

25 retailers€178 EUR to €1,993 EUR

A
Cheapest Retailer
-
€178 EUR
$200 USD
A
Retailer 2
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€200 EUR
$224 USD
View
Final sale: no returns
A
Retailer 3
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€208 EUR
$233 USD
View
Retailer 4
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€222 EUR
$249 USD
View
Price last confirmed 8 days ago
A
Retailer 5
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€222 EUR
$249 USD
View
A
Retailer 6
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€259 EUR
£228 GBP
View
B+
Retailer 7
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€316 EUR
$354 USD
View
A
Retailer 8
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€342 EUR
HK$3,000 HKD
View
A
Retailer 9
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€422 EUR
ZAR 7,652 ZAR
View
A
Retailer 10
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€440 EUR
$493 USD
View
A
Retailer 11
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€455 EUR
£402 GBP
View
A
Retailer 12
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€539 EUR
$604 USD
View
A
Retailer 13
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€598 EUR
A$1,032 AUD
View
B+
Retailer 14
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€715 EUR
$802 USD
View
B+
Retailer 15
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€786 EUR
$882 USD
View
B+
Retailer 16
-
€940 EUR
$1,054 USD
View
B+
Retailer 17
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€951 EUR
£840 GBP
View
B+
Retailer 18
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€974 EUR
SGD 1,477 SGD
View
B+
Retailer 19
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€981 EUR
£866 GBP
View
B
Retailer 20
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€1,066 EUR
$1,195 USD
View
Retailer 21
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€1,302 EUR
$1,460 USD
View
Price last confirmed 12 days ago
Retailer 22
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€1,311 EUR
$1,470 USD
View
Price last confirmed 19 days ago
B
Retailer 23
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€1,685 EUR
$1,890 USD
View
B
Retailer 24
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€1,712 EUR
$1,920 USD
View
Most Expensive
B
Queensmith
LG651411202 · Oct 27
€1,993 EUR
£1,760 GBP
View
24 more retailers have this diamond
Prices start from €178 EURSave up to €1,815 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
€178 EUR