Radiant|Lab Grown|IGI

1.21ct E IF Radiant Lab Grown Diamond

ID • E/IF • IGI LG625448755

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

Certificate IGI LG625448755

Diamond specifications and retailer prices

From €177 EUR
$198 USD
As of October 30, 2026
Save €1,517 EUR (90%) vs most expensive(unlock to see where)
28 retailers carry this diamond
Most expensive: €1,694 EUR at Do Amore Diamonds · As of October 31, 2026
View at Do Amore Diamonds

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 LG625448755 or 625448755. Listed at 28 retailers as of October 30, 2026, with prices from €177 to €1,694, a €1,517 spread on the same certified stone. Do Amore Diamonds lists it at €1,694. 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
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle28.5°
Pavilion angle32.6°
OriginLab Grown
Grading LabIGI
CertificateIGI LG625448755
Dimensions7.79 × 5.29 × 3.50 mm
L/W Ratio1.47
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
7.79 mm5.29 mm1.21 ctE / IF
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG625448755
Side View
Table 62.0%Crown 28.5°Girdle: MediumPavilion 32.6°Culet: NoneDepth 66.2%

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: Oct 30
Current: €417 EUR|Low: €177 EUR|High: €1,685 EUR|Avg: €600 EUR|+1.7%
Retailer 1
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
November 1, 2026
Retailer 15€177 EUR
Retailer 14€201 EUR
Retailer 2€341 EUR
Retailer 4€342 EUR
Retailer 10€406 EUR
Retailer 1€417 EUR
Retailer 6€437 EUR
Retailer 9€448 EUR
Retailer 7€538 EUR
Retailer 12€590 EUR
Retailer 13€705 EUR
Retailer 11€931 EUR
Retailer 8€967 EUR
Retailer 5€1,000 EUR
Retailer 3€1,685 EUR

43 data points across 15 retailers

28 retailers€177 EUR to €1,694 EUR

A
Cheapest Retailer
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€177 EUR
$198 USD
Retailer 2
-
€177 EUR
$198 USD
View
Price last confirmed 25 days ago
Retailer 3
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€177 EUR
$198 USD
View
Price last confirmed 33 days ago
A
Retailer 4
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€201 EUR
$226 USD
View
Final sale: no returns
Retailer 5
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€204 EUR
$229 USD
View
Price last confirmed 36 days ago
Retailer 6
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€216 EUR
$242 USD
View
Price last confirmed 35 days ago
Retailer 7
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€218 EUR
$245 USD
View
Price last confirmed 30 days ago
A
Retailer 8
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€341 EUR
$382 USD
View
A
Retailer 9
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€342 EUR
HK$3,000 HKD
View
A
Retailer 10
-
€406 EUR
View
A
Retailer 11
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€417 EUR
ZAR 7,548 ZAR
View
A
Retailer 12
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€437 EUR
$490 USD
View
A
Retailer 13
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€448 EUR
£396 GBP
View
A
Retailer 14
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€522 EUR
$586 USD
View
A
Retailer 15
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€538 EUR
$603 USD
View
A
Retailer 16
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€590 EUR
A$1,018 AUD
View
B+
Retailer 17
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€705 EUR
$791 USD
View
B+
Retailer 18
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€776 EUR
$870 USD
View
Retailer 19
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€776 EUR
$870 USD
View
Price last confirmed 23 days ago
Retailer 20
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€776 EUR
$870 USD
View
Price last confirmed 33 days ago
B+
Retailer 21
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€929 EUR
$1,042 USD
View
B+
Retailer 22
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€931 EUR
A$1,606 AUD
View
B+
Retailer 23
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€967 EUR
£854 GBP
View
B+
Retailer 24
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€1,000 EUR
SGD 1,516 SGD
View
B+
Retailer 25
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€1,058 EUR
$1,187 USD
View
Retailer 26
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€1,292 EUR
$1,449 USD
View
Price last confirmed 57 days ago
B
Retailer 27
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€1,685 EUR
$1,890 USD
View
Most Expensive
B
Do Amore Diamonds
27-CB45E29D4 · Oct 31
€1,694 EUR
$1,900 USD
View
27 more retailers have this diamond
Prices start from €177 EURSave up to €1,517 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
€177 EUR