Radiant|Lab Grown|IGI

4.23ct H VS1 Radiant Lab Grown Diamond

ID • H/VS1 • IGI LG566301524

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

Certificate IGI LG566301524

Diamond specifications and retailer prices

From €1,890 EUR
$2,111 USD
As of October 30, 2026
Save €814 EUR (30%) vs most expensive(unlock to see where)
4 retailers carry this diamond
Most expensive: €2,703 EUR at Brilliant Earth · As of October 29, 2026
View at Brilliant Earth

About this 4.23ct lab-grown radiant diamond

This 4.23ct lab-grown radiant sits in the three to five carat band, graded H colour (near-colourless) and VS1 clarity (very-slightly-included), with a top-tier cut grade and certified by IGI LG566301524 or 566301524. Listed at 4 retailers as of October 29, 2026, with prices from €1,890 to €2,703, a €814 spread on the same certified stone. Brilliant Earth lists it at €2,703. Lab-grown prices in the 2ct and up range have fallen 40 to 60% over the last 18 months. Use the cross-retailer spread above to find the lowest current listing.

The 4Cs

4.23
Carat
H
Color
VS1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle42°
Pavilion angle34°
OriginLab Grown
Grading LabIGI
CertificateIGI LG566301524
Dimensions11.72 × 7.84 × 5.26 mm
L/W Ratio1.49
Culet sizePointed
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process and may include post-growth treatment Type IIa
Top View
11.72 mm7.84 mm4.23 ctH / VS1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG566301524
Side View
Table 67.0%Crown 42°Girdle: Slightly ThickPavilion 34°Culet: NoneDepth 67.1%

Caratlytics Score

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B
Good
Decent quality, room for better deals
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Price History

Last verified: Oct 30
Current: €2,703 EUR|Low: €366 EUR|High: €7,651 EUR|Avg: €1,794 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
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Retailer 16
October 13, 2026
Retailer 10€514 EUR
Retailer 8€666 EUR
Retailer 12€694 EUR
Retailer 15€763 EUR
Retailer 2€907 EUR
Retailer 11€1,108 EUR
Retailer 16€1,202 EUR
Retailer 14€1,266 EUR
Retailer 5€1,463 EUR
Retailer 13€1,664 EUR
Retailer 3€1,853 EUR
Retailer 4€1,872 EUR
Retailer 9€1,890 EUR
Retailer 6€2,409 EUR
Brilliant Earth€2,703 EUR
Retailer 7€7,651 EUR

11 data points across 16 retailers

4 retailers€1,890 EUR to €2,703 EUR

Retailer 1
-
€1,108 EUR
ZAR 19,995 ZAR
Price last confirmed 43 days ago
Retailer 2
-
€1,501 EUR
HK$13,100 HKD
View
Price last confirmed 58 days ago
B
Retailer 3
-
€1,890 EUR
$2,111 USD
View
Most Expensive
B
Brilliant Earth
16084945A · Oct 29
€2,703 EUR
$3,020 USD
View
3 more retailers have this diamond
Prices start from €1,890 EURSave up to €814 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
4.23ct Radiant
€1,890 EUR