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Cushion|Lab Grown|IGI

6.65ct F VS1 Cushion Lab Grown Diamond

EX • F/VS1 • IGI LG848665080

Shape and cutting style on the report: Cushion modified brilliant

Certificate IGI LG848665080

Diamond specifications and retailer prices

From $1,690 USD
£1,331 GBP
As of October 28, 2026
Save $10,980 USD (87%) vs most expensive(unlock to see where)
2 retailers carry this diamond
Most expensive: $12,670 USD at Brilliant Earth · As of October 26, 2026
View at Brilliant Earth

About this 6.65ct lab-grown cushion diamond

This 6.65ct lab-grown cushion sits in the over five carat band, graded F colour (colourless) and VS1 clarity (very-slightly-included), with a top-tier cut grade and certified by IGI LG848665080 or 848665080. Listed at 2 retailers as of October 26, 2026, with prices from $1,690 to $12,670, a $10,980 spread on the same certified stone. Brilliant Earth lists it at $12,670. 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

6.65
Carat
F
Color
VS1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle34°
Pavilion angle36.1°
OriginLab Grown
Grading LabIGI
CertificateIGI LG848665080
Dimensions13.27 × 9.64 × 6.57 mm
L/W Ratio1.38
Girdle conditionFaceted
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
13.27 mm9.64 mm6.65 ctF / VS1
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG848665080
Side View
Table 62.0%Crown 34°Girdle: MED-STKPavilion 36.1°Culet: NoneDepth 68.2%

Caratlytics Score

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A
Excellent
Excellent quality and great value
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Price History

Last verified: Oct 28
Current: $1,690 USD|Low: $1,690 USD|High: $1,796 USD|Avg: $1,725 USD|-5.9%
October 28, 2026
Retailer 1$1,690 USD

3 data points across 1 retailer

2 retailers$1,690 USD to $12,670 USD

A
Cheapest Retailer
-
$1,690 USD
£1,331 GBP
Most Expensive
B
Brilliant Earth
22259884A · Oct 26
$12,670 USD
View
1 more retailer has this diamond
Prices start from $1,690 USDSave up to $10,980 USD

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
6.65ct Cushion
$1,690 USD