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Radiant|Lab Grown|IGI

6.40ct E VS1 Radiant Lab Grown Diamond

ID • E/VS1 • IGI LG839621746

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

Certificate IGI LG839621746

Diamond specifications and retailer prices

From $1,631 AUD
$1,146 USD
As of October 30, 2026
Save $12,847 AUD (89%) vs most expensive(unlock to see where)
12 retailers carry this diamond
Most expensive: $14,478 AUD at Do Amore Diamonds · As of October 29, 2026
View at Do Amore Diamonds

About this 6.4ct lab-grown radiant diamond

This 6.4ct 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 LG839621746 or 839621746. Listed at 12 retailers as of October 29, 2026, with prices from $1,631 to $14,478, a $12,847 spread on the same certified stone. Do Amore Diamonds lists it at $14,478. 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

6.40
Carat
E
Colour
VS1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle44.9°
Pavilion angle35.8°
OriginLab Grown
Grading LabIGI
CertificateIGI LG839621746
Dimensions12.85 × 9.19 × 6.16 mm
L/W Ratio1.40
Culet sizeNone
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
12.85 mm9.19 mm6.40 ctE / VS1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG839621746
Side View
Table 66.0%Crown 44.9°Girdle: MediumPavilion 35.8°Culet: NoneDepth 67.0%

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 30
Current: $14,478 AUD|Low: $1,631 AUD|High: $20,870 AUD|Avg: $6,540 AUD|-5.7%
Do Amore Diamonds
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
October 30, 2026
Retailer 10$1,631 AUD
Retailer 5$2,205 AUD
Retailer 12$3,005 AUD
Retailer 7$3,011 AUD
Retailer 9$3,727 AUD
Retailer 8$3,866 AUD
Retailer 11$3,913 AUD
Retailer 3$5,347 AUD
Retailer 4$6,378 AUD
Retailer 6$6,744 AUD
Retailer 2$11,061 AUD
Do Amore Diamonds$14,478 AUD

24 data points across 12 retailers

12 retailers$1,631 AUD to $14,478 AUD

A
Cheapest Retailer
-
$1,631 AUD
$1,146 USD
A
Retailer 2
-
$2,205 AUD
£1,220 GBP
View
A
Retailer 3
-
$3,005 AUD
$2,111 USD
View
B+
Retailer 4
-
$3,011 AUD
$2,115 USD
View
A
Retailer 5
-
$3,727 AUD
$2,618 USD
View
Retailer 6
-
$3,866 AUD
View
Price last confirmed 9 days ago
B+
Retailer 7
-
$3,913 AUD
$2,749 USD
View
B+
Retailer 8
-
$5,347 AUD
$3,756 USD
View
B
Retailer 9
-
$6,378 AUD
$4,480 USD
View
B+
Retailer 10
-
$6,744 AUD
£3,730 GBP
View
B
Retailer 11
-
$11,061 AUD
$7,770 USD
View
Most Expensive
B
Do Amore Diamonds
27-34299B087 · Oct 29
$14,478 AUD
$10,170 USD
View
11 more retailers have this diamond
Prices start from $1,631 AUDSave up to $12,847 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
6.40ct Radiant
$1,631 AUD