Cushion|Lab Grown|IGI

6.50ct E SI2 Cushion Lab Grown Diamond

EX • E/SI2 • IGI LG805690078

Shape and cutting style on the report: Cushion modified brilliant

Certificate IGI LG805690078

Diamond specifications and retailer prices

From $1,203 USD
As of October 29, 2026
Save $11,055 USD (90%) vs most expensive(unlock to see where)
11 retailers carry this diamond
Most expensive: $12,258 USD at Mervis Diamond Importers · As of October 29, 2026
View at Mervis Diamond Importers

About this 6.5ct lab-grown cushion diamond

This 6.5ct lab-grown cushion sits in the over five carat band, graded E colour (colourless) and SI2 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG805690078 or 805690078. Listed at 11 retailers as of October 29, 2026, with prices from $1,203 to $12,258, a $11,055 spread on the same certified stone. Mervis Diamond Importers lists it at $12,258. SI-grade stones are eye-clean roughly 60 to 70% of the time at this carat range. Check the inclusion plot on the cert and ask the retailer for high-resolution video before buying.

The 4Cs

6.50
Carat
E
Color
SI2
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle31°
Pavilion angle33.3°
OriginLab Grown
Grading LabIGI
CertificateIGI LG805690078
Dimensions14.03 × 9.75 × 6.14 mm
L/W Ratio1.44
Girdle conditionFaceted
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
14.03 mm9.75 mm6.50 ctE / SI2
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG805690078
Side View
Table 61.0%Crown 31°Girdle: MED-STKPavilion 33.3°Culet: NoneDepth 63.0%

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 29
Current: $12,258 USD|Low: $1,203 USD|High: $13,465 USD|Avg: $3,781 USD|-9.0%
Mervis Diamond Importers
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
October 30, 2026
Retailer 11$1,203 USD
Retailer 9$1,246 USD
Retailer 10$1,718 USD
Retailer 4$1,754 USD
Retailer 2$1,991 USD
Retailer 6$2,321 USD
Retailer 3$3,375 USD
Retailer 5$4,425 USD
Retailer 7$4,761 USD
Retailer 8$5,490 USD
Mervis Diamond Importers$12,258 USD

40 data points across 11 retailers

11 retailers$1,203 USD to $12,258 USD

A
Cheapest Retailer
-
$1,203 USD
Final sale: no returns
Retailer 2
-
$1,246 USD
View
Price last confirmed 18 days ago
A
Retailer 3
-
$1,718 USD
View
B+
Retailer 4
-
$1,754 USD
View
B+
Retailer 5
-
$1,991 USD
£1,568 GBP
View
B+
Retailer 6
-
$2,321 USD
View
B
Retailer 7
-
$3,375 USD
View
B
Retailer 8
-
$4,425 USD
£3,484 GBP
View
B
Retailer 9
-
$4,761 USD
View
Retailer 10
-
$5,490 USD
View
Price last confirmed 9 days ago
Most Expensive
B
Mervis Diamond Importers
1985410064 · Oct 29
$12,258 USD
View
10 more retailers have this diamond
Prices start from $1,203 USDSave up to $11,055 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
$1,203 USD