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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 ₹2,47,335 INR
$2,606 USD
As of November 1, 2026
Save ₹8,32,740 INR (77%) vs most expensive(unlock to see where)
5 retailers carry this diamond
Most expensive: ₹14,29,345 INR 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 5 retailers as of November 1, 2026, with a 337% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. 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
Colour
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

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: Nov 1
Current: ₹14,29,345 INR|Low: ₹2,47,335 INR|High: ₹34,92,426 INR|Avg: ₹10,53,892 INR
Brilliant Earth
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
November 3, 2026
Retailer 4₹2,47,335 INR
Retailer 8₹2,58,155 INR
Retailer 7₹3,89,131 INR
Retailer 2₹4,74,075 INR
Retailer 10₹4,92,013 INR
Retailer 5₹6,23,206 INR
Retailer 6₹7,47,511 INR
Retailer 11₹9,42,584 INR
Brilliant Earth₹14,29,345 INR
Retailer 9₹22,21,843 INR
Retailer 3₹34,92,426 INR

2 data points across 11 retailers

5 retailers₹2,47,335 INR to ₹10,80,076 INR

A
Cheapest Retailer
-
₹2,47,335 INR
$2,606 USD
B
Retailer 2
-
₹4,74,075 INR
$4,995 USD
View
Retailer 3
-
₹6,23,206 INR
$6,566 USD
View
Price last confirmed 91 days ago
B
Retailer 4
-
₹10,80,076 INR
$11,380 USD
View
Most Expensive
Brilliant Earth
17792836Y · Oct 18
₹14,29,345 INR
$15,060 USD
View
Price last confirmed 15 days ago
4 more retailers have this diamond
Prices start from ₹2,47,335 INRSave up to ₹8,32,740 INR

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
₹2,47,335 INR