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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 $2,257 AUD
$1,582 USD
As of November 1, 2026
Save $15,650 AUD (87%) vs most expensive(unlock to see where)
17 retailers carry this diamond
Most expensive: $17,908 AUD at Brilliant Earth · As of November 2, 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 17 retailers as of November 1, 2026, with prices from $2,257 to $17,908, a $15,650 spread on the same certified stone. Brilliant Earth lists it at $17,908. 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
Colour
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

How it works →
A
Excellent
Excellent quality and great value
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See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 1
Current: $17,908 AUD|Low: $2,257 AUD|High: $18,236 AUD|Avg: $5,901 AUD|-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$2,257 AUD
Retailer 13$2,339 AUD
Retailer 14$2,583 AUD
Retailer 12$2,733 AUD
Retailer 7$2,958 AUD
Retailer 6$3,290 AUD
Retailer 2$3,657 AUD
Retailer 10$4,784 AUD
Retailer 11$4,996 AUD
Retailer 8$6,241 AUD
Retailer 5$6,304 AUD
Retailer 16$6,816 AUD
Retailer 4$7,335 AUD
Retailer 9$7,374 AUD
Retailer 3$13,869 AUD
Brilliant Earth$17,908 AUD

43 data points across 16 retailers

17 retailers$2,257 AUD to $17,908 AUD

A
Cheapest Retailer
-
$2,257 AUD
$1,582 USD
Final sale: no returns
Retailer 2
-
$2,339 AUD
$1,639 USD
View
Price last confirmed 21 days ago
A
Retailer 3
-
$2,583 AUD
$1,810 USD
View
A
Retailer 4
-
$2,958 AUD
$2,073 USD
View
B+
Retailer 5
-
$3,290 AUD
$2,306 USD
View
B+
Retailer 6
-
$3,323 AUD
$2,329 USD
View
A
Retailer 7
-
$3,657 AUD
£2,018 GBP
View
B+
Retailer 8
-
$4,784 AUD
View
B+
Retailer 9
-
$4,996 AUD
ZAR 56,568 ZAR
View
B
Retailer 10
-
$6,241 AUD
£3,444 GBP
View
B
Retailer 11
-
$6,304 AUD
$4,418 USD
View
B
Retailer 12
-
$6,816 AUD
$4,777 USD
View
Retailer 13
-
$7,335 AUD
View
Price last confirmed 25 days ago
B
Retailer 14
-
$7,374 AUD
£4,069 GBP
View
B
Retailer 15
-
$9,112 AUD
$6,386 USD
View
B
Retailer 16
-
$13,869 AUD
$9,720 USD
View
Most Expensive
B
Brilliant Earth
18830757A · Nov 2
$17,908 AUD
$12,550 USD
View
16 more retailers have this diamond
Prices start from $2,257 AUDSave up to $15,650 AUD

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
$2,257 AUD