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Radiant|Lab Grown|IGI

1.23ct E VVS1 Radiant Lab Grown Diamond

ID • E/VVS1 • IGI LG622490937

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

Certificate IGI LG622490937

Diamond specifications and retailer prices

From €175 EUR
$195 USD
As of October 27, 2026
Save €912 EUR (84%) vs most expensive(unlock to see where)
22 retailers carry this diamond
Most expensive: €1,087 EUR at Brilliant Earth · As of October 29, 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 VVS1 clarity (very-very-slightly-included), with a top-tier cut grade and certified by IGI LG622490937 or 622490937. Listed at 22 retailers as of October 27, 2026, with prices from €175 to €1,087, a €912 spread on the same certified stone. Brilliant Earth lists it at €1,087. 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
VVS1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle47.4°
Pavilion angle35.6°
OriginLab Grown
Grading LabIGI
CertificateIGI LG622490937
Dimensions7.44 × 5.45 × 3.48 mm
L/W Ratio1.37
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
7.44 mm5.45 mm1.23 ctE / VVS1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG622490937
Side View
Table 62.0%Crown 47.4°Girdle: STK-THKPavilion 35.6°Culet: NoneDepth 63.9%

Caratlytics Score

How it works →
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 27
Current: €1,087 EUR|Low: €168 EUR|High: €1,087 EUR|Avg: €525 EUR
Brilliant Earth
Retailer 2
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Retailer 20
October 29, 2026
Retailer 20€175 EUR
Retailer 11€196 EUR
Retailer 3€217 EUR
Retailer 8€217 EUR
Retailer 14€268 EUR
Retailer 6€295 EUR
Retailer 18€356 EUR
Retailer 16€373 EUR
Retailer 2€396 EUR
Retailer 9€438 EUR
Retailer 5€511 EUR
Retailer 17€530 EUR
Retailer 19€558 EUR
Retailer 4€699 EUR
Retailer 7€720 EUR
Retailer 12€747 EUR
Retailer 15€764 EUR
Retailer 13€1,022 EUR
Retailer 10€1,059 EUR
Brilliant Earth€1,087 EUR

39 data points across 20 retailers

22 retailers€175 EUR to €1,087 EUR

A
Cheapest Retailer
-
€175 EUR
$195 USD
A
Retailer 2
-
€196 EUR
$218 USD
View
Final sale: no returns
A
Retailer 3
-
€203 EUR
$226 USD
View
A
Retailer 4
-
€217 EUR
$242 USD
View
A
Retailer 5
-
€217 EUR
$242 USD
View
A
Retailer 6
-
€268 EUR
£235 GBP
View
B+
Retailer 7
-
€295 EUR
$328 USD
View
A
Retailer 8
-
€356 EUR
View
A
Retailer 9
-
€373 EUR
ZAR 6,713 ZAR
View
A
Retailer 10
-
€396 EUR
£347 GBP
View
A
Retailer 11
-
€438 EUR
$488 USD
View
A
Retailer 12
-
€473 EUR
$527 USD
View
Price last confirmed 30 days ago
B+
Retailer 13
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€511 EUR
$569 USD
View
A
Retailer 14
-
€530 EUR
A$908 AUD
View
B+
Retailer 15
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€558 EUR
$621 USD
View
B+
Retailer 16
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€699 EUR
$778 USD
View
B+
Retailer 17
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€734 EUR
$817 USD
View
B+
Retailer 18
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€747 EUR
$832 USD
View
B+
Retailer 19
-
€764 EUR
A$1,309 AUD
View
B
Retailer 20
-
€1,022 EUR
£896 GBP
View
B
Retailer 21
-
€1,059 EUR
$1,178 USD
View
Most Expensive
B
Brilliant Earth
9399427A · Oct 29
€1,087 EUR
$1,210 USD
View
21 more retailers have this diamond
Prices start from €175 EURSave up to €912 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
€175 EUR