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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 $1,625 USD
As of October 29, 2026
Save $5,395 USD (77%) vs most expensive(unlock to see where)
20 retailers carry this diamond
Most expensive: $7,020 USD 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 $1,625 to $7,020, a $5,395 spread on the same certified stone. Brilliant Earth lists it at $7,020. 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
Color
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: $7,020 USD|Low: $1,625 USD|High: $7,918 USD|Avg: $3,757 USD|-3.0%
Brilliant Earth
Retailer 2
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Retailer 20
October 30, 2026
Retailer 16$1,625 USD
Retailer 12$1,684 USD
Retailer 18$1,730 USD
Retailer 2$1,809 USD
Retailer 9$1,946 USD
Retailer 6$2,114 USD
Retailer 13$2,377 USD
Retailer 4$2,408 USD
Retailer 14$2,582 USD
Retailer 19$2,709 USD
Retailer 3$3,664 USD
Retailer 10$4,069 USD
Retailer 7$4,321 USD
Retailer 15$4,835 USD
Retailer 5$4,946 USD
Retailer 8$5,630 USD
Retailer 20$5,770 USD
Retailer 11$5,927 USD
Retailer 17$6,045 USD
Brilliant Earth$7,020 USD

32 data points across 20 retailers

20 retailers$1,625 USD to $7,020 USD

A
Cheapest Retailer
-
$1,625 USD
Final sale: no returns
Retailer 2
-
$1,684 USD
View
Price last confirmed 17 days ago
A
Retailer 3
-
$1,730 USD
View
A
Retailer 4
-
$1,809 USD
£1,424 GBP
View
A
Retailer 5
-
$1,946 USD
HK$15,200 HKD
View
A
Retailer 6
-
$2,114 USD
View
A
Retailer 7
-
$2,377 USD
£1,872 GBP
View
A
Retailer 8
-
$2,408 USD
View
A
Retailer 9
-
$2,582 USD
€2,459 EUR
View
A
Retailer 10
-
$2,709 USD
View
B+
Retailer 11
-
$3,664 USD
View
B+
Retailer 12
-
$4,069 USD
£3,204 GBP
View
B+
Retailer 13
-
$4,321 USD
View
B+
Retailer 14
-
$4,835 USD
£3,807 GBP
View
B+
Retailer 15
-
$4,946 USD
View
B+
Retailer 16
-
$5,630 USD
SGD 7,608 SGD
View
Retailer 17
-
$5,770 USD
A$8,877 AUD
View
Price last confirmed 24 days ago
B
Retailer 18
-
$5,927 USD
View
Retailer 19
-
$6,045 USD
View
Price last confirmed 11 days ago
Most Expensive
B
Brilliant Earth
14721905A · Oct 29
$7,020 USD
View
19 more retailers have this diamond
Prices start from $1,625 USDSave up to $5,395 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
$1,625 USD