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Cushion|Lab Grown|IGI

6.51ct E VS2 Cushion Lab Grown Diamond

EX • E/VS2 • IGI LG770627210

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

Certificate IGI LG770627210

Diamond specifications and retailer prices

From $1,389 AUD
$977 USD
As of October 27, 2026
Save $7,597 AUD (85%) vs most expensive(unlock to see where)
18 retailers carry this diamond
Most expensive: $8,986 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 LG770627210 or 770627210. Listed at 18 retailers as of October 27, 2026, with prices from $1,389 to $8,986, a $7,597 spread on the same certified stone. Brilliant Earth lists it at $8,986. 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 angle34.6°
Pavilion angle34.9°
OriginLab Grown
Grading LabIGI
CertificateIGI LG770627210
Dimensions10.73 × 10.67 × 10.73 mm
L/W Ratio1.01
Girdle conditionFaceted
Culet sizePointed
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
10.73 mm10.67 mm6.51 ctE / VS2
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG770627210
Side View
Table 67.0%Crown 34.6°Girdle: STK-VTKPavilion 34.9°Culet: NoneDepth 62.5%

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 27
Current: $8,986 AUD|Low: $1,389 AUD|High: $8,986 AUD|Avg: $4,230 AUD
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 29, 2026
Retailer 9$1,389 AUD
Retailer 14$1,547 AUD
Retailer 11$1,656 AUD
Retailer 18$1,692 AUD
Retailer 8$2,050 AUD
Retailer 2$2,177 AUD
Retailer 15$2,201 AUD
Retailer 4$2,312 AUD
Retailer 3$3,009 AUD
Retailer 6$3,987 AUD
Retailer 7$4,505 AUD
Retailer 5$4,512 AUD
Retailer 13$4,780 AUD
Retailer 16$5,405 AUD
Retailer 12$6,817 AUD
Retailer 10$6,974 AUD
Retailer 17$8,290 AUD
Brilliant Earth$8,986 AUD

33 data points across 18 retailers

18 retailers$1,389 AUD to $8,986 AUD

A
Cheapest Retailer
-
$1,389 AUD
$977 USD
Final sale: no returns
A
Retailer 2
-
$1,547 AUD
£857 GBP
View
A
Retailer 3
-
$1,656 AUD
HK$9,100 HKD
View
A
Retailer 4
-
$1,692 AUD
$1,190 USD
View
A
Retailer 5
-
$2,050 AUD
$1,442 USD
View
A
Retailer 6
-
$2,177 AUD
€1,458 EUR
View
A
Retailer 7
-
$2,201 AUD
£1,219 GBP
View
B+
Retailer 8
-
$2,312 AUD
$1,626 USD
View
A
Retailer 9
-
$3,009 AUD
$2,116 USD
View
A
Retailer 10
-
$3,987 AUD
£2,208 GBP
View
Price last confirmed 13 days ago
A
Retailer 11
-
$4,505 AUD
$3,168 USD
View
A
Retailer 12
-
$4,512 AUD
$3,173 USD
View
B+
Retailer 13
-
$4,780 AUD
SGD 4,543 SGD
View
B+
Retailer 14
-
$5,405 AUD
£2,993 GBP
View
B+
Retailer 15
-
$6,817 AUD
$4,794 USD
View
B+
Retailer 16
-
$6,974 AUD
View
Price last confirmed 20 days ago
B
Retailer 17
-
$8,290 AUD
$5,830 USD
View
Price last confirmed 10 days ago
Most Expensive
B
Brilliant Earth
17704298A · Oct 28
$8,986 AUD
$6,320 USD
View
17 more retailers have this diamond
Prices start from $1,389 AUDSave up to $7,597 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
$1,389 AUD