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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 $2,033 NZD
$1,146 USD
As of October 30, 2026
Save $16,011 NZD (89%) vs most expensive(unlock to see where)
12 retailers carry this diamond
Most expensive: $18,045 NZD 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 $2,033 to $18,045, a $16,011 spread on the same certified stone. Do Amore Diamonds lists it at $18,045. 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
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Oct 30
Current: $18,045 NZD|Low: $2,033 NZD|High: $26,011 NZD|Avg: $8,151 NZD|-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$2,033 NZD
Retailer 5$2,749 NZD
Retailer 12$3,746 NZD
Retailer 7$3,753 NZD
Retailer 9$4,645 NZD
Retailer 8$4,818 NZD
Retailer 11$4,878 NZD
Retailer 3$6,664 NZD
Retailer 4$7,949 NZD
Retailer 6$8,405 NZD
Retailer 2$13,786 NZD
Do Amore Diamonds$18,045 NZD

24 data points across 12 retailers

12 retailers$2,033 NZD to $18,045 NZD

A
Cheapest Retailer
-
$2,033 NZD
$1,146 USD
A
Retailer 2
-
$2,749 NZD
£1,220 GBP
View
A
Retailer 3
-
$3,746 NZD
$2,111 USD
View
B+
Retailer 4
-
$3,753 NZD
$2,115 USD
View
A
Retailer 5
-
$4,645 NZD
$2,618 USD
View
Retailer 6
-
$4,818 NZD
A$4,178 AUD
View
Price last confirmed 9 days ago
B+
Retailer 7
-
$4,878 NZD
$2,749 USD
View
B+
Retailer 8
-
$6,664 NZD
$3,756 USD
View
B
Retailer 9
-
$7,949 NZD
$4,480 USD
View
B+
Retailer 10
-
$8,405 NZD
£3,730 GBP
View
B
Retailer 11
-
$13,786 NZD
$7,770 USD
View
Most Expensive
B
Do Amore Diamonds
27-34299B087 · Oct 29
$18,045 NZD
$10,170 USD
View
11 more retailers have this diamond
Prices start from $2,033 NZDSave up to $16,011 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
6.40ct Radiant
$2,033 NZD