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Cushion|Lab Grown|IGI

6.55ct D VS2 Cushion Lab Grown Diamond

ID • D/VS2 • IGI LG644484590

Shape and cutting style on the report: Cushion brilliant

Certificate IGI LG644484590

Diamond specifications and retailer prices

From $2,313 AUD
$1,625 USD
As of October 29, 2026
Save $7,680 AUD (77%) vs most expensive(unlock to see where)
20 retailers carry this diamond
Most expensive: $9,994 AUD at Brilliant Earth · As of October 29, 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 D colour (colourless) and VS2 clarity (very-slightly-included), with a top-tier cut grade and certified by IGI LG644484590 or 644484590. Listed at 20 retailers as of October 29, 2026, with prices from $2,313 to $9,994, a $7,680 spread on the same certified stone. Brilliant Earth lists it at $9,994. 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
D
Colour
VS2
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle37.8°
Pavilion angle32°
OriginLab Grown
Grading LabIGI
CertificateIGI LG644484590
Dimensions11.71 × 9.74 × 6.39 mm
L/W Ratio1.20
Girdle conditionFaceted
Culet sizePointed
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
11.71 mm9.74 mm6.55 ctD / VS2
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG644484590
Side View
Table 63.0%Crown 37.8°Girdle: STK-VTKPavilion 32°Culet: NoneDepth 65.6%

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: Oct 29
Current: $9,994 AUD|Low: $2,313 AUD|High: $11,273 AUD|Avg: $5,348 AUD|-3.0%
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
Retailer 17
Retailer 18
Retailer 19
Retailer 20
October 30, 2026
Retailer 16$2,313 AUD
Retailer 12$2,397 AUD
Retailer 18$2,463 AUD
Retailer 2$2,575 AUD
Retailer 9$2,770 AUD
Retailer 6$3,009 AUD
Retailer 13$3,384 AUD
Retailer 4$3,428 AUD
Retailer 14$3,676 AUD
Retailer 19$3,857 AUD
Retailer 3$5,216 AUD
Retailer 10$5,793 AUD
Retailer 7$6,151 AUD
Retailer 15$6,883 AUD
Retailer 5$7,041 AUD
Retailer 8$8,015 AUD
Retailer 20$8,214 AUD
Retailer 11$8,437 AUD
Retailer 17$8,606 AUD
Brilliant Earth$9,994 AUD

32 data points across 20 retailers

20 retailers$2,313 AUD to $9,994 AUD

A
Cheapest Retailer
-
$2,313 AUD
$1,625 USD
Final sale: no returns
Retailer 2
-
$2,397 AUD
$1,684 USD
View
Price last confirmed 18 days ago
A
Retailer 3
-
$2,463 AUD
$1,730 USD
View
A
Retailer 4
-
$2,575 AUD
£1,424 GBP
View
A
Retailer 5
-
$2,770 AUD
HK$15,200 HKD
View
A
Retailer 6
-
$3,009 AUD
$2,114 USD
View
A
Retailer 7
-
$3,384 AUD
£1,872 GBP
View
A
Retailer 8
-
$3,428 AUD
$2,408 USD
View
A
Retailer 9
-
$3,676 AUD
€2,459 EUR
View
A
Retailer 10
-
$3,857 AUD
$2,709 USD
View
B+
Retailer 11
-
$5,216 AUD
$3,664 USD
View
B+
Retailer 12
-
$5,793 AUD
£3,204 GBP
View
B+
Retailer 13
-
$6,151 AUD
$4,321 USD
View
B+
Retailer 14
-
$6,883 AUD
£3,807 GBP
View
B+
Retailer 15
-
$7,041 AUD
$4,946 USD
View
B+
Retailer 16
-
$8,015 AUD
SGD 7,608 SGD
View
Retailer 17
-
$8,214 AUD
View
Price last confirmed 25 days ago
B
Retailer 18
-
$8,437 AUD
$5,927 USD
View
Retailer 19
-
$8,606 AUD
$6,045 USD
View
Price last confirmed 12 days ago
Most Expensive
B
Brilliant Earth
14721905A · Oct 29
$9,994 AUD
$7,020 USD
View
19 more retailers have this diamond
Prices start from $2,313 AUDSave up to $7,680 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
$2,313 AUD