CaratHunter
Plans
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 $2,167 AUD
$1,522 USD
As of October 29, 2026
Save $9,493 AUD (81%) vs most expensive(unlock to see where)
18 retailers carry this diamond
Most expensive: $11,659 AUD at Brilliant Earth · As of October 30, 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 $2,167 to $11,659, a $9,493 spread on the same certified stone. Brilliant Earth lists it at $11,659. 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
Colour
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
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Oct 29
Current: $11,659 AUD|Low: $2,167 AUD|High: $22,009 AUD|Avg: $5,376 AUD|-47.0%
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
October 31, 2026
Retailer 4$2,167 AUD
Retailer 10$2,318 AUD
Retailer 14$2,491 AUD
Retailer 3$2,759 AUD
Retailer 2$3,165 AUD
Retailer 15$3,206 AUD
Retailer 16$3,807 AUD
Retailer 11$4,048 AUD
Retailer 8$4,291 AUD
Retailer 12$4,342 AUD
Retailer 18$5,424 AUD
Retailer 17$5,551 AUD
Retailer 5$6,047 AUD
Retailer 6$6,640 AUD
Retailer 13$7,248 AUD
Retailer 7$7,887 AUD
Retailer 9$8,845 AUD
Brilliant Earth$11,659 AUD

40 data points across 18 retailers

18 retailers$2,167 AUD to $11,659 AUD

A
Cheapest Retailer
-
$2,167 AUD
$1,522 USD
Final sale: no returns
Retailer 2
-
$2,318 AUD
$1,628 USD
View
Price last confirmed 18 days ago
A
Retailer 3
-
$2,491 AUD
$1,750 USD
View
A
Retailer 4
-
$2,759 AUD
$1,938 USD
View
A
Retailer 5
-
$3,165 AUD
£1,751 GBP
View
A
Retailer 6
-
$3,206 AUD
$2,252 USD
View
B+
Retailer 7
-
$3,807 AUD
$2,674 USD
View
B+
Retailer 8
-
$4,048 AUD
€2,708 EUR
View
Retailer 9
-
$4,291 AUD
View
Price last confirmed 9 days ago
B+
Retailer 10
-
$4,342 AUD
ZAR 49,276 ZAR
View
B+
Retailer 11
-
$5,424 AUD
£3,000 GBP
View
B+
Retailer 12
-
$5,551 AUD
$3,899 USD
View
B
Retailer 13
-
$6,047 AUD
$4,248 USD
View
B
Retailer 14
-
$6,640 AUD
$4,664 USD
View
B
Retailer 15
-
$7,248 AUD
£4,009 GBP
View
B
Retailer 16
-
$7,887 AUD
$5,540 USD
View
Retailer 17
-
$8,845 AUD
View
Price last confirmed 22 days ago
Most Expensive
B
Brilliant Earth
18209841A · Oct 30
$11,659 AUD
$8,190 USD
View
17 more retailers have this diamond
Prices start from $2,167 AUDSave up to $9,493 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
6.50ct Cushion
$2,167 AUD