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Radiant|Lab Grown|IGI

6.29ct E VS1 Radiant Lab Grown Diamond

EX • E/VS1 • IGI LG840655191

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

Certificate IGI LG840655191

Diamond specifications and retailer prices

From $1,973 NZD
$1,112 USD
As of October 29, 2026
Save $1,029 NZD (34%) vs most expensive(unlock to see where)
4 retailers carry this diamond
Most expensive: $25,692 NZD at Brilliant Earth · As of October 28, 2026
View at Brilliant Earth

About this 6.29ct lab-grown radiant diamond

This 6.29ct lab-grown radiant sits in the over five carat band, graded E colour (colourless) and VS1 clarity (very-slightly-included), with a top-tier cut grade and certified by IGI LG840655191 or 840655191. Listed at 4 retailers as of October 29, 2026, with a 52% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. 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

6.29
Carat
E
Colour
VS1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle44.6°
Pavilion angle36.2°
OriginLab Grown
Grading LabIGI
CertificateIGI LG840655191
Dimensions12.45 × 9.24 × 6.30 mm
L/W Ratio1.35
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
12.45 mm9.24 mm6.29 ctE / VS1
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG840655191
Side View
Table 66.0%Crown 44.6°Girdle: Slightly ThickPavilion 36.2°Culet: NoneDepth 68.2%

Caratlytics Score

How it works →
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 29
Current: $25,692 NZD|Low: $1,973 NZD|High: $25,710 NZD|Avg: $11,118 NZD|-0.1%
Brilliant Earth
Retailer 2
Retailer 3
Retailer 4
October 30, 2026
Retailer 3$1,973 NZD
Retailer 2$3,002 NZD
Retailer 4$10,513 NZD
Brilliant Earth$25,692 NZD

25 data points across 4 retailers

4 retailers$1,973 NZD to $3,002 NZD

A
Cheapest Retailer
-
$1,973 NZD
$1,112 USD
Final sale: no returns
A
Retailer 2
-
$3,002 NZD
£1,332 GBP
View
Retailer 3
-
$10,513 NZD
$5,925 USD
View
Price last confirmed 23 days ago
Most Expensive
Brilliant Earth
21620055A · Oct 28
$25,692 NZD
$14,480 USD
View
Price under review
3 more retailers have this diamond
Prices start from $1,973 NZDSave up to $1,029 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
6.29ct Radiant
$1,973 NZD