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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 $3,746 NZD
$2,111 USD
As of November 1, 2026
Save $1,613 NZD (30%) vs most expensive(unlock to see where)
3 retailers carry this diamond
Most expensive: $5,358 NZD at Brilliant Earth · As of October 31, 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 3 retailers as of October 31, 2026, with prices from $3,746 to $5,358, a $1,613 spread on the same certified stone. Brilliant Earth lists it at $5,358. 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
Colour
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

How it works →
B+
Very Good
Strong quality and value balance
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Price History

Last verified: Nov 1
Current: $5,358 NZD|Low: $1,018 NZD|High: $15,167 NZD|Avg: $3,555 NZD
Brilliant Earth
Retailer 2
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Retailer 5
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Retailer 8
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Retailer 16
October 13, 2026
Retailer 10$1,018 NZD
Retailer 8$1,320 NZD
Retailer 12$1,375 NZD
Retailer 15$1,512 NZD
Retailer 2$1,798 NZD
Retailer 11$2,196 NZD
Retailer 16$2,383 NZD
Retailer 14$2,510 NZD
Retailer 5$2,899 NZD
Retailer 13$3,299 NZD
Retailer 3$3,674 NZD
Retailer 4$3,710 NZD
Retailer 9$3,746 NZD
Retailer 6$4,775 NZD
Brilliant Earth$5,358 NZD
Retailer 7$15,167 NZD

10 data points across 16 retailers

3 retailers$3,746 NZD to $5,358 NZD

Retailer 1
-
$2,975 NZD
HK$13,100 HKD
Price last confirmed 59 days ago
B+
Retailer 2
-
$3,746 NZD
$2,111 USD
View
Most Expensive
B
Brilliant Earth
16084945A · Oct 31
$5,358 NZD
$3,020 USD
View
2 more retailers have this diamond
Prices start from $3,746 NZDSave up to $1,613 NZD

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
$3,746 NZD