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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 $1,605 USD
As of November 1, 2026
Save $5,885 USD (79%) vs most expensive(unlock to see where)
22 retailers carry this diamond
Most expensive: $7,490 USD 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 $1,605 to $7,490, a $5,885 spread on the same certified stone. Brilliant Earth lists it at $7,490. 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
Color
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: $7,490 USD|Low: $1,649 USD|High: $7,490 USD|Avg: $3,572 USD
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$1,649 USD
Retailer 7$1,737 USD
Retailer 6$1,820 USD
Retailer 3$2,195 USD
Retailer 8$2,328 USD
Retailer 2$2,447 USD
Retailer 9$3,056 USD
Retailer 14$3,162 USD
Retailer 13$4,221 USD
Retailer 11$4,736 USD
Retailer 5$4,856 USD
Retailer 10$4,919 USD
Retailer 12$5,390 USD
Brilliant Earth$7,490 USD

35 data points across 14 retailers

22 retailers$1,605 USD to $7,490 USD

A
Cheapest Retailer
-
$1,605 USD
Final sale: no returns
Retailer 2
-
$1,649 USD
View
Price last confirmed 21 days ago
A
Retailer 3
-
$1,737 USD
£1,368 GBP
View
A
Retailer 4
-
$1,779 USD
HK$13,900 HKD
View
A
Retailer 5
-
$1,820 USD
View
A
Retailer 6
-
$2,008 USD
View
A
Retailer 7
-
$2,195 USD
View
A
Retailer 8
-
$2,328 USD
£1,833 GBP
View
Retailer 9
-
$2,385 USD
£1,878 GBP
View
Price last confirmed 17 days ago
A
Retailer 10
-
$2,447 USD
€2,330 EUR
View
B+
Retailer 11
-
$3,056 USD
A$4,702 AUD
View
Retailer 12
-
$3,162 USD
ZAR 51,080 ZAR
View
Price last confirmed 18 days ago
B+
Retailer 13
-
$3,978 USD
£3,132 GBP
View
B+
Retailer 14
-
$4,221 USD
View
B
Retailer 15
-
$4,736 USD
£3,729 GBP
View
B
Retailer 16
-
$4,856 USD
View
B
Retailer 17
-
$4,919 USD
A$7,568 AUD
View
B
Retailer 18
-
$5,136 USD
SGD 6,940 SGD
View
Retailer 19
-
$5,390 USD
View
Price last confirmed 14 days ago
Retailer 20
-
$5,415 USD
View
Price last confirmed 28 days ago
B
Retailer 21
-
$5,803 USD
View
Most Expensive
B
Brilliant Earth
12155750A · Nov 2
$7,490 USD
View
21 more retailers have this diamond
Prices start from $1,605 USDSave up to $5,885 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
6.55ct Cushion
$1,605 USD