Radiant|Lab Grown|IGI

1.23ct E VVS1 Radiant Lab Grown Diamond

ID • E/VVS1 • IGI LG634443011

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

Certificate IGI LG634443011

Diamond specifications and retailer prices

From €268 EUR
$299 USD
As of November 1, 2026
Save €208 EUR (44%) vs most expensive(unlock to see where)
3 retailers carry this diamond
Most expensive: €886 EUR at Rare Carat · As of October 24, 2026
View at Rare Carat

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 LG634443011 or 634443011. Listed at 3 retailers as of October 31, 2026, with a 78% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. 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
Color
VVS1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle44.4°
Pavilion angle34.3°
OriginLab Grown
Grading LabIGI
CertificateIGI LG634443011
Dimensions7.85 × 5.19 × 3.53 mm
L/W Ratio1.51
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
7.85 mm5.19 mm1.23 ctE / VVS1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG634443011
Side View
Table 65.0%Crown 44.4°Girdle: MediumPavilion 34.3°Culet: NoneDepth 68.0%

Caratlytics Score

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B+
Very Good
Strong quality and value balance
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See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 1
Current: €886 EUR|Low: €138 EUR|High: €1,665 EUR|Avg: €679 EUR|-0.1%
Rare Carat
Retailer 2
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Retailer 8
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Retailer 16
October 18, 2026
Retailer 14€138 EUR
Retailer 10€268 EUR
Retailer 7€332 EUR
Retailer 12€411 EUR
Retailer 6€449 EUR
Retailer 2€475 EUR
Retailer 3€498 EUR
Retailer 15€532 EUR
Retailer 11€568 EUR
Retailer 8€749 EUR
Rare Carat€886 EUR
Retailer 4€915 EUR
Retailer 16€928 EUR
Retailer 9€1,029 EUR
Retailer 5€1,050 EUR
Retailer 13€1,665 EUR

7 data points across 16 retailers

3 retailers€268 EUR to €475 EUR

B+
Cheapest Retailer
-
€268 EUR
$299 USD
B+
Retailer 2
-
€475 EUR
$531 USD
View
Most Expensive
Rare Carat
A13-26 · Oct 21
€886 EUR
$990 USD
View
Price last confirmed 7 days ago
2 more retailers have this diamond
Prices start from €268 EURSave up to €208 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.

B+
1.23ct Radiant
€268 EUR