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Radiant|Lab Grown|IGI

3.91ct J VS2 Radiant Lab Grown Diamond

J/VS2 • IGI LG12838711

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

Certificate IGI LG12838711

Diamond specifications and retailer prices

From $4,926 NZD
As of November 5, 2026
Save $2,183 NZD (31%) vs most expensive(unlock to see where)
2 retailers carry this diamond
Most expensive: $7,109 NZD at The Diamond Guys · As of November 6, 2026
View at The Diamond Guys

About this 3.91ct lab-grown radiant diamond

This 3.91ct lab-grown radiant sits in the three to five carat band, graded J colour (near-colourless) and VS2 clarity (very-slightly-included) and certified by IGI LG12838711 or 12838711. Listed at 2 retailers as of November 5, 2026, with prices from $4,926 to $7,109, a $2,183 spread on the same certified stone. The Diamond Guys lists it at $7,109. Cut grade matters more than carat or clarity for visible brilliance. If you can shift budget toward an Excellent or Ideal cut, do it before chasing higher colour or clarity.

The 4Cs

3.91
Carat
J
Colour
VS2
Clarity
-
Cut

Specifications

Cut
PolishExcellent
SymmetryVery Good
FluorescenceNone
Crown angle37.6°
Pavilion angle38.3°
OriginLab Grown
Grading LabIGI
CertificateIGI LG12838711
Dimensions9.24 × 8.88 × 5.93 mm
L/W Ratio1.04
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process and may include post-growth treatment.
Top View
9.24 mm8.88 mm3.91 ctJ / VS2
OriginLab Grown
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateIGI LG12838711
Side View
Table 68.5%Crown 37.6°Girdle: THN-MEDPavilion 38.3°Culet: NoneDepth 66.8%

Caratlytics Score

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B
Good
Decent quality, room for better deals
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Price History

Last verified: Nov 5
Current: $4,926 NZD|Low: $3,261 NZD|High: $7,618 NZD|Avg: $5,461 NZD|+51.1%
Retailer 1
The Diamond Guys
August 3, 2026
Retailer 1$4,926 NZD
The Diamond Guys$7,109 NZD

15 data points across 2 retailers

2 retailers$4,926 NZD to $7,109 NZD

B
Cheapest Retailer
-
$4,926 NZD
Most Expensive
C
The Diamond Guys
1779253095 · Nov 6
$7,109 NZD
$3,941 USD
View
1 more retailer has this diamond
Prices start from $4,926 NZDSave up to $2,183 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
3.91ct Radiant
$4,926 NZD