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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 $1,930 NZD
£857 GBP
As of October 27, 2026
Save $9,283 NZD (83%) vs most expensive(unlock to see where)
17 retailers carry this diamond
Most expensive: $11,214 NZD at Brilliant Earth · As of October 31, 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 17 retailers as of October 27, 2026, with prices from $1,930 to $11,214, a $9,283 spread on the same certified stone. Brilliant Earth lists it at $11,214. 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 × 6.67 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: $11,214 NZD|Low: $1,733 NZD|High: $11,214 NZD|Avg: $5,189 NZD
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 10$1,733 NZD
Retailer 16$1,930 NZD
Retailer 13$2,067 NZD
Retailer 4$2,111 NZD
Retailer 9$2,559 NZD
Retailer 2$2,696 NZD
Retailer 17$2,747 NZD
Retailer 5$2,885 NZD
Retailer 12$3,712 NZD
Retailer 7$4,975 NZD
Retailer 8$5,621 NZD
Retailer 6$5,630 NZD
Retailer 15$5,965 NZD
Retailer 18$6,744 NZD
Retailer 14$8,506 NZD
Retailer 11$8,601 NZD
Retailer 3$10,344 NZD
Brilliant Earth$11,214 NZD

32 data points across 18 retailers

17 retailers$1,930 NZD to $11,214 NZD

A
Cheapest Retailer
-
$1,930 NZD
£857 GBP
A
Retailer 2
-
$2,067 NZD
HK$9,100 HKD
View
A
Retailer 3
-
$2,111 NZD
$1,190 USD
View
A
Retailer 4
-
$2,559 NZD
$1,442 USD
View
A
Retailer 5
-
$2,696 NZD
€1,447 EUR
View
A
Retailer 6
-
$2,747 NZD
£1,219 GBP
View
B+
Retailer 7
-
$2,885 NZD
$1,626 USD
View
A
Retailer 8
-
$3,712 NZD
$2,092 USD
View
Retailer 9
-
$4,975 NZD
£2,208 GBP
View
Price last confirmed 15 days ago
B+
Retailer 10
-
$5,621 NZD
$3,168 USD
View
B+
Retailer 11
-
$5,630 NZD
$3,173 USD
View
B+
Retailer 12
-
$5,965 NZD
SGD 4,543 SGD
View
B+
Retailer 13
-
$6,744 NZD
£2,993 GBP
View
B+
Retailer 14
-
$8,506 NZD
$4,794 USD
View
B+
Retailer 15
-
$8,601 NZD
A$7,458 AUD
View
Retailer 16
-
$10,344 NZD
$5,830 USD
View
Price last confirmed 12 days ago
Most Expensive
B
Brilliant Earth
17704298A · Oct 31
$11,214 NZD
$6,320 USD
View
16 more retailers have this diamond
Prices start from $1,930 NZDSave up to $9,283 NZD

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
$1,930 NZD