Radiant|Lab Grown|IGI

4.15ct H VS1 Radiant Lab Grown Diamond

ID • H/VS1 • IGI LG579366342

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

Certificate IGI LG579366342

Diamond specifications and retailer prices

From $928 NZD
$523 USD
As of October 30, 2026
Save $5,637 NZD (86%) vs most expensive(unlock to see where)
22 retailers carry this diamond
Most expensive: $6,565 NZD at Brilliant Earth · As of October 31, 2026
View at Brilliant Earth

About this 4.15ct lab-grown radiant diamond

This 4.15ct 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 LG579366342 or 579366342. Listed at 22 retailers as of October 30, 2026, with prices from $928 to $6,565, a $5,637 spread on the same certified stone. Brilliant Earth lists it at $6,565. 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

4.15
Carat
H
Colour
VS1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle44.3°
Pavilion angle36.6°
OriginLab Grown
Grading LabIGI
CertificateIGI LG579366342
Dimensions11.80 × 7.90 × 5.19 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
11.80 mm7.90 mm4.15 ctH / VS1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG579366342
Side View
Table 64.0%Crown 44.3°Girdle: MediumPavilion 36.6°Culet: NoneDepth 65.7%

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: $6,565 NZD|Low: $859 NZD|High: $6,884 NZD|Avg: $2,389 NZD|-3.6%
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
Retailer 16
Retailer 17
Retailer 18
Retailer 19
November 1, 2026
Retailer 9$928 NZD
Retailer 11$1,038 NZD
Retailer 17$1,040 NZD
Retailer 7$1,150 NZD
Retailer 2$1,268 NZD
Retailer 4$1,393 NZD
Retailer 19$1,544 NZD
Retailer 18$1,635 NZD
Retailer 12$1,902 NZD
Retailer 16$2,289 NZD
Retailer 14$2,305 NZD
Retailer 5$2,314 NZD
Retailer 13$2,528 NZD
Retailer 6$3,025 NZD
Retailer 8$3,353 NZD
Retailer 10$3,740 NZD
Retailer 3$3,762 NZD
Retailer 15$4,829 NZD
Brilliant Earth$6,565 NZD

40 data points across 19 retailers

22 retailers$928 NZD to $6,565 NZD

A
Cheapest Retailer
-
$928 NZD
$523 USD
A
Retailer 2
-
$1,038 NZD
$585 USD
View
Final sale: no returns
A
Retailer 3
-
$1,040 NZD
$586 USD
View
Retailer 4
-
$1,137 NZD
$641 USD
View
Price last confirmed 16 days ago
A
Retailer 5
-
$1,150 NZD
$648 USD
View
A
Retailer 6
-
$1,268 NZD
£563 GBP
View
A
Retailer 7
-
$1,393 NZD
$785 USD
View
B+
Retailer 8
-
$1,544 NZD
$870 USD
View
A
Retailer 9
-
$1,635 NZD
HK$7,200 HKD
View
A
Retailer 10
-
$1,902 NZD
€1,021 EUR
View
A
Retailer 11
-
$2,289 NZD
ZAR 20,844 ZAR
View
A
Retailer 12
-
$2,305 NZD
A$1,999 AUD
View
A
Retailer 13
-
$2,314 NZD
$1,304 USD
View
B+
Retailer 14
-
$2,528 NZD
$1,425 USD
View
B+
Retailer 15
-
$2,968 NZD
$1,673 USD
View
B+
Retailer 16
-
$3,025 NZD
$1,705 USD
View
B+
Retailer 17
-
$3,353 NZD
£1,488 GBP
View
B+
Retailer 18
-
$3,740 NZD
$2,108 USD
View
B+
Retailer 19
-
$3,762 NZD
$2,120 USD
View
B
Retailer 20
-
$4,684 NZD
CA$3,667 CAD
View
B
Retailer 21
-
$4,829 NZD
£2,143 GBP
View
Most Expensive
B
Brilliant Earth
16070552A · Oct 31
$6,565 NZD
$3,700 USD
View
21 more retailers have this diamond
Prices start from $928 NZDSave up to $5,637 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.

A
4.15ct Radiant
$928 NZD