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Cushion|Lab Grown|IGI

6.50ct D VS1 Cushion Lab Grown Diamond

D/VS1 • IGI LG776688550

Shape and cutting style on the report: Square cushion modified brilliant

Certificate IGI LG776688550

Diamond specifications and retailer prices

From $1,522 USD
As of October 29, 2026
Save $13,928 USD (90%) vs most expensive(unlock to see where)
18 retailers carry this diamond
Most expensive: $15,450 USD at Brilliant Earth · As of October 29, 2026
View at Brilliant Earth

About this 6.5ct lab-grown cushion diamond

This 6.5ct lab-grown cushion sits in the over five carat band, graded D colour (colourless) and VS1 clarity (very-slightly-included) and certified by IGI LG776688550 or 776688550. Listed at 18 retailers as of October 29, 2026, with prices from $1,522 to $15,450, a $13,928 spread on the same certified stone. Brilliant Earth lists it at $15,450. 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

6.50
Carat
D
Color
VS1
Clarity
-
Cut

Specifications

Cut
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle34.1°
Pavilion angle36.9°
OriginLab Grown
Grading LabIGI
CertificateIGI LG776688550
Dimensions10.42 × 10.42 × 6.91 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
10.42 mm10.42 mm6.50 ctD / VS1
OriginLab Grown
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG776688550
Side View
Table 66.0%Crown 34.1°Girdle: STK-THKPavilion 36.9°Culet: NoneDepth 66.3%

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: Oct 29
Current: $15,460 USD|Low: $1,522 USD|High: $15,460 USD|Avg: $3,724 USD|+0.1%
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
October 30, 2026
Retailer 4$1,522 USD
Retailer 10$1,628 USD
Retailer 14$1,750 USD
Retailer 3$1,938 USD
Retailer 2$2,223 USD
Retailer 15$2,252 USD
Retailer 16$2,674 USD
Retailer 11$2,843 USD
Retailer 8$3,014 USD
Retailer 12$3,050 USD
Retailer 18$3,810 USD
Retailer 17$3,899 USD
Retailer 5$4,248 USD
Retailer 6$4,664 USD
Retailer 13$5,091 USD
Retailer 7$5,540 USD
Retailer 9$6,213 USD
Brilliant Earth$15,460 USD

39 data points across 18 retailers

18 retailers$1,522 USD to $15,450 USD

A
Cheapest Retailer
-
$1,522 USD
Final sale: no returns
Retailer 2
-
$1,628 USD
View
Price last confirmed 17 days ago
A
Retailer 3
-
$1,750 USD
View
A
Retailer 4
-
$1,938 USD
View
A
Retailer 5
-
$2,223 USD
£1,751 GBP
View
A
Retailer 6
-
$2,252 USD
View
B+
Retailer 7
-
$2,674 USD
View
B+
Retailer 8
-
$2,843 USD
€2,708 EUR
View
Retailer 9
-
$3,014 USD
A$4,637 AUD
View
Price last confirmed 8 days ago
B+
Retailer 10
-
$3,050 USD
ZAR 49,276 ZAR
View
B+
Retailer 11
-
$3,810 USD
£3,000 GBP
View
B+
Retailer 12
-
$3,899 USD
View
B+
Retailer 13
-
$4,248 USD
View
B+
Retailer 14
-
$4,664 USD
View
B
Retailer 15
-
$5,091 USD
£4,009 GBP
View
B
Retailer 16
-
$5,540 USD
View
Retailer 17
-
$6,213 USD
A$9,559 AUD
View
Price last confirmed 21 days ago
Most Expensive
C
Brilliant Earth
18209841A · Oct 29
$15,450 USD
View
17 more retailers have this diamond
Prices start from $1,522 USDSave up to $13,928 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
6.50ct Cushion
$1,522 USD