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Cushion|Lab Grown|IGI

6.39ct F VVS1 Cushion Lab Grown Diamond

EX • F/VVS1 • IGI LG670463837

Shape and cutting style on the report: Cushion brilliant

Certificate IGI LG670463837

Diamond specifications and retailer prices

From $3,642 CAD
$2,606 USD
As of October 26, 2026
3 retailers carry this diamond
Most expensive: $21,045 CAD at Brilliant Earth · As of October 18, 2026
View at Brilliant Earth

About this 6.39ct lab-grown cushion diamond

This 6.39ct lab-grown cushion sits in the over five carat band, graded F colour (colourless) and VVS1 clarity (very-very-slightly-included), with a top-tier cut grade and certified by IGI LG670463837 or 670463837. Listed at 3 retailers as of October 26, 2026. 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

6.39
Carat
F
Color
VVS1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle35.4°
Pavilion angle38°
OriginLab Grown
Grading LabIGI
CertificateIGI LG670463837
Dimensions12.62 × 10.12 × 6.53 mm
L/W Ratio1.25
Girdle conditionFaceted
Cert comments
As Grown - No indication of post-growth treatment This Laboratory Grown Diamond was created by High Pressure High Temperature (HPHT) growth process Type II
Top View
12.62 mm10.12 mm6.39 ctF / VVS1
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG670463837
Side View
Table 62.0%Crown 35.4°Girdle: MED-STKPavilion 38°Culet: NoneDepth 64.5%

Caratlytics Score

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A
Excellent
Excellent quality and great value
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Price History

Last verified: Oct 26
Current: $21,045 CAD|Low: $3,284 CAD|High: $59,068 CAD|Avg: $20,216 CAD|-8.3%
Brilliant Earth
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
October 4, 2026
Retailer 2$3,642 CAD
Retailer 7$3,801 CAD
Retailer 6$5,729 CAD
Retailer 9$7,244 CAD
Retailer 4$9,176 CAD
Retailer 5$11,006 CAD
Retailer 10$13,878 CAD
Retailer 11$15,084 CAD
Brilliant Earth$21,045 CAD
Retailer 8$32,713 CAD
Retailer 3$51,420 CAD

53 data points across 11 retailers

3 retailers

A
Cheapest Retailer
-
$3,642 CAD
$2,606 USD
Retailer 2
-
$9,176 CAD
$6,566 USD
View
Price last confirmed 90 days ago
Most Expensive
Brilliant Earth
17792836Y · Oct 18
$21,045 CAD
$15,060 USD
View
Price last confirmed 15 days ago
2 more retailers have this diamond
Prices start from $3,642 CAD

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
6.39ct Cushion
$3,642 CAD