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Cushion|Lab Grown|IGI

6.54ct F VS1 Cushion Lab Grown Diamond

VG • F/VS1 • IGI LG660430090

Shape and cutting style on the report: Cushion brilliant

Certificate IGI LG660430090

Diamond specifications and retailer prices

From $1,582 USD
As of November 1, 2026
Save $10,968 USD (87%) vs most expensive(unlock to see where)
18 retailers carry this diamond
Most expensive: $12,550 USD at Brilliant Earth · As of October 31, 2026
View at Brilliant Earth

About this 6.54ct lab-grown cushion diamond

This 6.54ct lab-grown cushion sits in the over five carat band, graded F colour (colourless) and VS1 clarity (very-slightly-included), with a very-good cut grade and certified by IGI LG660430090 or 660430090. Listed at 18 retailers as of October 31, 2026, with prices from $1,582 to $12,550, a $10,968 spread on the same certified stone. Brilliant Earth lists it at $12,550. Cut grade matters more than carat or clarity for visible brilliance. If you can shift budget toward an Excellent or Ideal cut, do it before chasing higher colour or clarity.

The 4Cs

6.54
Carat
F
Color
VS1
Clarity
Very Good
Cut

Specifications

CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle36.2°
Pavilion angle39.4°
OriginLab Grown
Grading LabIGI
CertificateIGI LG660430090
Dimensions9.62 × 9.62 × 6.77 mm
L/W Ratio1.00
Girdle conditionFaceted
Culet sizePointed
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
9.62 mm9.62 mm6.54 ctF / VS1
OriginLab Grown
CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG660430090
Side View
Table 65.0%Crown 36.2°Girdle: MED-STKPavilion 39.4°Culet: NoneDepth 70.4%

Caratlytics Score

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A
Excellent
Excellent quality and great value
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Price History

Last verified: Nov 1
Current: $12,550 USD|Low: $1,582 USD|High: $12,780 USD|Avg: $4,131 USD|-1.8%
Brilliant Earth
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
Retailer 13
Retailer 14
Retailer 15
Retailer 16
November 2, 2026
Retailer 15$1,582 USD
Retailer 13$1,639 USD
Retailer 14$1,810 USD
Retailer 12$1,915 USD
Retailer 7$2,073 USD
Retailer 6$2,306 USD
Retailer 2$2,563 USD
Retailer 10$3,353 USD
Retailer 11$3,502 USD
Retailer 8$4,374 USD
Retailer 5$4,418 USD
Retailer 16$4,777 USD
Retailer 4$5,141 USD
Retailer 9$5,168 USD
Retailer 3$9,720 USD
Brilliant Earth$12,550 USD

44 data points across 16 retailers

18 retailers$1,582 USD to $12,550 USD

A
Cheapest Retailer
-
$1,582 USD
Final sale: no returns
Retailer 2
-
$1,639 USD
View
Price last confirmed 20 days ago
A
Retailer 3
-
$1,810 USD
View
Retailer 4
-
$1,915 USD
£1,508 GBP
View
Price last confirmed 16 days ago
A
Retailer 5
-
$2,073 USD
View
B+
Retailer 6
-
$2,306 USD
View
B+
Retailer 7
-
$2,329 USD
View
A
Retailer 8
-
$2,563 USD
£2,018 GBP
View
B+
Retailer 9
-
$3,353 USD
A$5,158 AUD
View
B+
Retailer 10
-
$3,502 USD
ZAR 56,568 ZAR
View
B
Retailer 11
-
$4,374 USD
£3,444 GBP
View
B
Retailer 12
-
$4,418 USD
View
B
Retailer 13
-
$4,777 USD
View
Retailer 14
-
$5,141 USD
A$7,909 AUD
View
Price last confirmed 24 days ago
B
Retailer 15
-
$5,168 USD
£4,069 GBP
View
B
Retailer 16
-
$6,386 USD
View
B
Retailer 17
-
$9,720 USD
View
Most Expensive
B
Brilliant Earth
18830757A · Oct 31
$12,550 USD
View
17 more retailers have this diamond
Prices start from $1,582 USDSave up to $10,968 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
6.54ct Cushion
$1,582 USD