Radiant|Lab Grown|IGI

1.21ct E IF Radiant Lab Grown Diamond

ID • E/IF • IGI LG700513951

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

Certificate IGI LG700513951

Diamond specifications and retailer prices

From €194 EUR
$218 USD
As of October 30, 2026
Save €1,500 EUR (89%) vs most expensive(unlock to see where)
28 retailers carry this diamond
Most expensive: €1,694 EUR at Brilliant Earth · As of October 31, 2026
View at Brilliant Earth

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 LG700513951 or 700513951. Listed at 28 retailers as of October 30, 2026, with prices from €194 to €1,694, a €1,500 spread on the same certified stone. Brilliant Earth 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 angle41.7°
Pavilion angle34.1°
OriginLab Grown
Grading LabIGI
CertificateIGI LG700513951
Dimensions7.43 × 5.37 × 3.56 mm
L/W Ratio1.38
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
7.43 mm5.37 mm1.21 ctE / IF
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG700513951
Side View
Table 62.0%Crown 41.7°Girdle: MED-STKPavilion 34.1°Culet: NoneDepth 66.3%

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: Oct 30
Current: €1,694 EUR|Low: €194 EUR|High: €1,694 EUR|Avg: €637 EUR
Brilliant Earth
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 3€194 EUR
Retailer 2€222 EUR
Retailer 5€285 EUR
Retailer 4€341 EUR
Retailer 9€406 EUR
Retailer 11€415 EUR
Retailer 8€448 EUR
Retailer 6€457 EUR
Retailer 12€590 EUR
Retailer 7€691 EUR
Retailer 15€778 EUR
Retailer 10€924 EUR
Retailer 13€968 EUR
Retailer 14€1,306 EUR
Brilliant Earth€1,694 EUR

43 data points across 15 retailers

28 retailers€194 EUR to €1,694 EUR

A
Cheapest Retailer
-
€194 EUR
$218 USD
Retailer 2
-
€194 EUR
$218 USD
View
Price last confirmed 25 days ago
Retailer 3
-
€194 EUR
$218 USD
View
Price last confirmed 33 days ago
A
Retailer 4
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€222 EUR
$249 USD
View
Final sale: no returns
Retailer 5
-
€226 EUR
$253 USD
View
Price last confirmed 36 days ago
Retailer 6
-
€238 EUR
$267 USD
View
Price last confirmed 35 days ago
Retailer 7
-
€242 EUR
$271 USD
View
Price last confirmed 30 days ago
A
Retailer 8
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€285 EUR
HK$2,500 HKD
View
A
Retailer 9
-
€341 EUR
$382 USD
View
A
Retailer 10
-
€406 EUR
View
A
Retailer 11
-
€415 EUR
ZAR 7,511 ZAR
View
A
Retailer 12
-
€448 EUR
£396 GBP
View
A
Retailer 13
-
€457 EUR
$513 USD
View
A
Retailer 14
-
€522 EUR
$586 USD
View
A
Retailer 15
-
€590 EUR
A$1,018 AUD
View
B+
Retailer 16
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€691 EUR
$775 USD
View
B+
Retailer 17
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€776 EUR
$870 USD
View
Retailer 18
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€776 EUR
$870 USD
View
Price last confirmed 33 days ago
Retailer 19
-
€776 EUR
$870 USD
View
Price last confirmed 23 days ago
B+
Retailer 20
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€778 EUR
$873 USD
View
B+
Retailer 21
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€819 EUR
SGD 1,241 SGD
View
B+
Retailer 22
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€823 EUR
$923 USD
View
B+
Retailer 23
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€876 EUR
$982 USD
View
B+
Retailer 24
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€924 EUR
A$1,595 AUD
View
B+
Retailer 25
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€968 EUR
£855 GBP
View
B
Retailer 26
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€1,116 EUR
$1,252 USD
View
Retailer 27
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€1,306 EUR
$1,465 USD
View
Price last confirmed 12 days ago
Most Expensive
B
Brilliant Earth
14915357A · Oct 31
€1,694 EUR
$1,900 USD
View
27 more retailers have this diamond
Prices start from €194 EURSave up to €1,500 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
€194 EUR