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Cushion|Lab Grown|IGI

6.55ct F VS1 Cushion Lab Grown Diamond

ID • F/VS1 • IGI LG655422864

Shape and cutting style on the report: Cushion brilliant

Certificate IGI LG655422864

Diamond specifications and retailer prices

From $2,290 AUD
$1,605 USD
As of November 1, 2026
Save $8,397 AUD (79%) vs most expensive(unlock to see where)
22 retailers carry this diamond
Most expensive: $10,687 AUD at Brilliant Earth · As of November 2, 2026
View at Brilliant Earth

About this 6.55ct lab-grown cushion diamond

This 6.55ct 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 LG655422864 or 655422864. Listed at 22 retailers as of November 1, 2026, with prices from $2,290 to $10,687, a $8,397 spread on the same certified stone. Brilliant Earth lists it at $10,687. 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

6.55
Carat
F
Colour
VS1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle33.9°
Pavilion angle30.4°
OriginLab Grown
Grading LabIGI
CertificateIGI LG655422864
Dimensions9.70 × 9.70 × 6.30 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
9.70 mm9.70 mm6.55 ctF / VS1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG655422864
Side View
Table 60.0%Crown 33.9°Girdle: MED-THKPavilion 30.4°Culet: NoneDepth 64.9%

Caratlytics Score

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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: $10,687 AUD|Low: $2,353 AUD|High: $10,687 AUD|Avg: $5,097 AUD
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
November 2, 2026
Retailer 4$2,353 AUD
Retailer 7$2,478 AUD
Retailer 6$2,597 AUD
Retailer 3$3,132 AUD
Retailer 8$3,322 AUD
Retailer 2$3,491 AUD
Retailer 9$4,361 AUD
Retailer 14$4,512 AUD
Retailer 13$6,023 AUD
Retailer 11$6,758 AUD
Retailer 5$6,929 AUD
Retailer 10$7,019 AUD
Retailer 12$7,691 AUD
Brilliant Earth$10,687 AUD

35 data points across 14 retailers

22 retailers$2,290 AUD to $10,687 AUD

A
Cheapest Retailer
-
$2,290 AUD
$1,605 USD
Final sale: no returns
Retailer 2
-
$2,353 AUD
$1,649 USD
View
Price last confirmed 21 days ago
A
Retailer 3
-
$2,478 AUD
£1,368 GBP
View
A
Retailer 4
-
$2,539 AUD
HK$13,900 HKD
View
A
Retailer 5
-
$2,597 AUD
$1,820 USD
View
A
Retailer 6
-
$2,865 AUD
$2,008 USD
View
A
Retailer 7
-
$3,132 AUD
$2,195 USD
View
A
Retailer 8
-
$3,322 AUD
£1,833 GBP
View
Retailer 9
-
$3,403 AUD
£1,878 GBP
View
Price last confirmed 17 days ago
A
Retailer 10
-
$3,491 AUD
€2,330 EUR
View
B+
Retailer 11
-
$4,361 AUD
View
Retailer 12
-
$4,512 AUD
ZAR 51,080 ZAR
View
Price last confirmed 18 days ago
B+
Retailer 13
-
$5,676 AUD
£3,132 GBP
View
B+
Retailer 14
-
$6,023 AUD
$4,221 USD
View
B
Retailer 15
-
$6,758 AUD
£3,729 GBP
View
B
Retailer 16
-
$6,929 AUD
$4,856 USD
View
B
Retailer 17
-
$7,019 AUD
View
B
Retailer 18
-
$7,328 AUD
SGD 6,940 SGD
View
Retailer 19
-
$7,691 AUD
$5,390 USD
View
Price last confirmed 14 days ago
Retailer 20
-
$7,727 AUD
$5,415 USD
View
Price last confirmed 28 days ago
B
Retailer 21
-
$8,281 AUD
$5,803 USD
View
Most Expensive
B
Brilliant Earth
12155750A · Nov 2
$10,687 AUD
$7,490 USD
View
21 more retailers have this diamond
Prices start from $2,290 AUDSave up to $8,397 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
6.55ct Cushion
$2,290 AUD