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Radiant|Lab Grown|IGI

6.18ct E VS1 Radiant Lab Grown Diamond

EX • E/VS1 • IGI LG845667879

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

Certificate IGI LG845667879

Diamond specifications and retailer prices

From $1,939 NZD
$1,093 USD
As of October 29, 2026
Save $11,439 NZD (86%) vs most expensive(unlock to see where)
4 retailers carry this diamond
Most expensive: $13,378 NZD at Brilliant Earth · As of October 28, 2026
View at Brilliant Earth

About this 6.18ct lab-grown radiant diamond

This 6.18ct 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 LG845667879 or 845667879. Listed at 4 retailers as of October 28, 2026, with prices from $1,939 to $13,378, a $11,439 spread on the same certified stone. Brilliant Earth lists it at $13,378. 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

6.18
Carat
E
Colour
VS1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle43°
Pavilion angle35.1°
OriginLab Grown
Grading LabIGI
CertificateIGI LG845667879
Dimensions12.93 × 9.06 × 6.15 mm
L/W Ratio1.43
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
12.93 mm9.06 mm6.18 ctE / VS1
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG845667879
Side View
Table 62.0%Crown 43°Girdle: MediumPavilion 35.1°Culet: NoneDepth 67.9%

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: $2,932 NZD|Low: $1,939 NZD|High: $10,273 NZD|Avg: $4,950 NZD|-9.1%
Retailer 1
Retailer 2
Retailer 3
October 31, 2026
Retailer 2$1,939 NZD
Retailer 1$2,932 NZD
Retailer 3$10,273 NZD

18 data points across 3 retailers

4 retailers$1,939 NZD to $13,378 NZD

A
Cheapest Retailer
-
$1,939 NZD
$1,093 USD
Final sale: no returns
A
Retailer 2
-
$2,932 NZD
£1,301 GBP
View
Retailer 3
-
$10,273 NZD
$5,790 USD
View
Price last confirmed 12 days ago
Most Expensive
B
Brilliant Earth
21840023A · Oct 28
$13,378 NZD
$7,540 USD
View
3 more retailers have this diamond
Prices start from $1,939 NZDSave up to $11,439 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
6.18ct Radiant
$1,939 NZD