Radiant|Lab Grown|IGI

1.23ct E IF Radiant Lab Grown Diamond

ID • E/IF • IGI LG662464734

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

Certificate IGI LG662464734

Diamond specifications and retailer prices

From €197 EUR
$221 USD
As of October 30, 2026
Save €1,533 EUR (89%) vs most expensive(unlock to see where)
28 retailers carry this diamond
Most expensive: €1,730 EUR at Brilliant Earth · As of October 31, 2026
View at Brilliant Earth

About this 1.23ct lab-grown radiant diamond

This 1.23ct 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 LG662464734 or 662464734. Listed at 28 retailers as of October 30, 2026, with prices from €197 to €1,730, a €1,533 spread on the same certified stone. Brilliant Earth lists it at €1,730. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.23
Carat
E
Colour
IF
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle41.3°
Pavilion angle34.4°
OriginLab Grown
Grading LabIGI
CertificateIGI LG662464734
Dimensions7.89 × 5.32 × 3.49 mm
L/W Ratio1.48
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
7.89 mm5.32 mm1.23 ctE / IF
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG662464734
Side View
Table 66.0%Crown 41.3°Girdle: MED-STKPavilion 34.4°Culet: NoneDepth 65.6%

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: €1,730 EUR|Low: €197 EUR|High: €1,730 EUR|Avg: €620 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 14€197 EUR
Retailer 11€221 EUR
Retailer 4€285 EUR
Retailer 15€346 EUR
Retailer 9€412 EUR
Retailer 2€423 EUR
Retailer 8€455 EUR
Retailer 5€461 EUR
Retailer 12€598 EUR
Retailer 6€712 EUR
Retailer 13€790 EUR
Retailer 7€873 EUR
Retailer 3€956 EUR
Retailer 10€986 EUR
Brilliant Earth€1,730 EUR

43 data points across 15 retailers

28 retailers€197 EUR to €1,730 EUR

A
Cheapest Retailer
-
€197 EUR
$221 USD
Retailer 2
-
€197 EUR
$221 USD
View
Price last confirmed 25 days ago
Retailer 3
-
€197 EUR
$221 USD
View
Price last confirmed 33 days ago
A
Retailer 4
-
€221 EUR
$248 USD
View
Final sale: no returns
Retailer 5
-
€229 EUR
$257 USD
View
Price last confirmed 36 days ago
Retailer 6
-
€242 EUR
$271 USD
View
Price last confirmed 34 days ago
Retailer 7
-
€245 EUR
$275 USD
View
Price last confirmed 30 days ago
A
Retailer 8
-
€285 EUR
HK$2,500 HKD
View
A
Retailer 9
-
€346 EUR
$388 USD
View
A
Retailer 10
-
€412 EUR
View
A
Retailer 11
-
€423 EUR
ZAR 7,658 ZAR
View
A
Retailer 12
-
€455 EUR
£402 GBP
View
A
Retailer 13
-
€461 EUR
$517 USD
View
A
Retailer 14
-
€531 EUR
$595 USD
View
A
Retailer 15
-
€598 EUR
A$1,032 AUD
View
B+
Retailer 16
-
€712 EUR
$799 USD
View
B+
Retailer 17
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€787 EUR
$883 USD
View
Retailer 18
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€787 EUR
$883 USD
View
Price last confirmed 23 days ago
Retailer 19
-
€787 EUR
$883 USD
View
Price last confirmed 33 days ago
B+
Retailer 20
-
€790 EUR
$886 USD
View
B+
Retailer 21
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€829 EUR
SGD 1,257 SGD
View
B+
Retailer 22
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€834 EUR
$935 USD
View
B+
Retailer 23
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€891 EUR
$999 USD
View
Retailer 24
-
€956 EUR
A$1,650 AUD
View
Price last confirmed 28 days ago
B+
Retailer 25
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€986 EUR
£871 GBP
View
B
Retailer 26
-
€1,125 EUR
$1,262 USD
View
Retailer 27
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€1,301 EUR
$1,459 USD
View
Price last confirmed 57 days ago
Most Expensive
B
Brilliant Earth
12314679A · Oct 31
€1,730 EUR
$1,940 USD
View
27 more retailers have this diamond
Prices start from €197 EURSave up to €1,533 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
1.23ct Radiant
€197 EUR