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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 $1,556 AUD
$1,093 USD
As of October 31, 2026
Save $9,178 AUD (86%) vs most expensive(unlock to see where)
4 retailers carry this diamond
Most expensive: $10,734 AUD 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 $1,556 to $10,734, a $9,178 spread on the same certified stone. Brilliant Earth lists it at $10,734. 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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Price History

Last verified: Oct 31
Current: $2,352 AUD|Low: $1,556 AUD|High: $8,243 AUD|Avg: $3,972 AUD|-9.1%
Retailer 1
Retailer 2
Retailer 3
October 31, 2026
Retailer 2$1,556 AUD
Retailer 1$2,352 AUD
Retailer 3$8,243 AUD

18 data points across 3 retailers

4 retailers$1,556 AUD to $10,734 AUD

A
Cheapest Retailer
-
$1,556 AUD
$1,093 USD
Final sale: no returns
A
Retailer 2
-
$2,352 AUD
£1,301 GBP
View
Retailer 3
-
$8,243 AUD
$5,790 USD
View
Price last confirmed 12 days ago
Most Expensive
B
Brilliant Earth
21840023A · Oct 28
$10,734 AUD
$7,540 USD
View
3 more retailers have this diamond
Prices start from $1,556 AUDSave up to $9,178 AUD

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
$1,556 AUD