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Cushion|Lab Grown|IGI

6.51ct E VS2 Cushion Lab Grown Diamond

EX • E/VS2 • IGI LG839647750

Shape and cutting style on the report: Cushion modified brilliant

Certificate IGI LG839647750

Diamond specifications and retailer prices

From $1,453 AUD
$1,021 USD
As of October 27, 2026
Save $7,543 AUD (84%) vs most expensive(unlock to see where)
16 retailers carry this diamond
Most expensive: $8,996 AUD at Brilliant Earth · As of October 28, 2026
View at Brilliant Earth

About this 6.51ct lab-grown cushion diamond

This 6.51ct lab-grown cushion sits in the over five carat band, graded E colour (colourless) and VS2 clarity (very-slightly-included), with a top-tier cut grade and certified by IGI LG839647750 or 839647750. Listed at 16 retailers as of October 27, 2026, with prices from $1,453 to $8,996, a $7,543 spread on the same certified stone. Brilliant Earth lists it at $8,996. 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

6.51
Carat
E
Colour
VS2
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle35.1°
Pavilion angle33.6°
OriginLab Grown
Grading LabIGI
CertificateIGI LG839647750
Dimensions12.63 × 9.57 × 6.30 mm
L/W Ratio1.32
Girdle conditionFaceted
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
12.63 mm9.57 mm6.51 ctE / VS2
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG839647750
Side View
Table 60.0%Crown 35.1°Girdle: MED-STKPavilion 33.6°Culet: NoneDepth 65.8%

Caratlytics Score

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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 27
Current: $2,281 AUD|Low: $1,453 AUD|High: $8,348 AUD|Avg: $4,180 AUD|-0.8%
Retailer 1
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
October 29, 2026
Retailer 3$1,453 AUD
Retailer 12$1,618 AUD
Retailer 8$1,731 AUD
Retailer 11$1,815 AUD
Retailer 1$2,281 AUD
Retailer 13$2,306 AUD
Retailer 4$2,416 AUD
Retailer 2$4,165 AUD
Retailer 7$4,542 AUD
Retailer 15$4,713 AUD
Retailer 10$5,000 AUD
Retailer 14$5,116 AUD
Retailer 6$6,982 AUD
Retailer 9$7,145 AUD
Retailer 5$8,306 AUD

25 data points across 15 retailers

16 retailers$1,453 AUD to $8,996 AUD

A
Cheapest Retailer
-
$1,453 AUD
$1,021 USD
Final sale: no returns
A
Retailer 2
-
$1,618 AUD
£895 GBP
View
A
Retailer 3
-
$1,731 AUD
HK$9,500 HKD
View
A
Retailer 4
-
$1,815 AUD
$1,275 USD
View
A
Retailer 5
-
$2,281 AUD
€1,526 EUR
View
A
Retailer 6
-
$2,306 AUD
£1,275 GBP
View
B+
Retailer 7
-
$2,416 AUD
$1,697 USD
View
A
Retailer 8
-
$4,165 AUD
£2,304 GBP
View
B+
Retailer 9
-
$4,542 AUD
$3,191 USD
View
B+
Retailer 10
-
$4,713 AUD
$3,311 USD
View
B+
Retailer 11
-
$5,000 AUD
SGD 4,747 SGD
View
B+
Retailer 12
-
$5,116 AUD
£2,830 GBP
View
B+
Retailer 13
-
$6,982 AUD
View
Price last confirmed 20 days ago
B+
Retailer 14
-
$7,145 AUD
$5,020 USD
View
B
Retailer 15
-
$8,306 AUD
$5,835 USD
View
Price last confirmed 10 days ago
Most Expensive
B
Brilliant Earth
21808577A · Oct 28
$8,996 AUD
$6,320 USD
View
15 more retailers have this diamond
Prices start from $1,453 AUDSave up to $7,543 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
6.51ct Cushion
$1,453 AUD