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Cushion|Lab Grown|IGI

10.26ct I VS1 Cushion Lab Grown Diamond

EX • I/VS1 • IGI LG605388797

Shape and cutting style on the report: Square cushion brilliant

Certificate IGI LG605388797

Diamond specifications and retailer prices

From $3,075 CAD
$2,201 USD
As of October 29, 2026
Save $12,613 CAD (80%) vs most expensive(unlock to see where)
12 retailers carry this diamond
Most expensive: $15,687 CAD at Brilliant Earth · As of October 29, 2026
View at Brilliant Earth

About this 10.26ct lab-grown cushion diamond

This 10.26ct lab-grown cushion sits in the over five carat band, graded I colour (near-colourless) and VS1 clarity (very-slightly-included), with a top-tier cut grade and certified by IGI LG605388797 or 605388797. Listed at 12 retailers as of October 29, 2026, with prices from $3,075 to $15,687, a $12,613 spread on the same certified stone. Brilliant Earth lists it at $15,687. 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

10.26
Carat
I
Color
VS1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle37.8°
Pavilion angle30.7°
OriginLab Grown
Grading LabIGI
CertificateIGI LG605388797
Dimensions12.43 × 11.90 × 7.51 mm
L/W Ratio1.04
Girdle conditionFaceted
Culet sizePointed
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process and may include post-growth treatment Type IIa
Top View
12.43 mm11.90 mm10.26 ctI / VS1
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG605388797
Side View
Table 65.0%Crown 37.8°Girdle: MED-THKPavilion 30.7°Culet: NoneDepth 63.1%

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: $15,687 CAD|Low: $2,195 CAD|High: $16,176 CAD|Avg: $6,179 CAD|-3.0%
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
October 29, 2026
Retailer 13$3,075 CAD
Retailer 10$3,185 CAD
Retailer 5$3,388 CAD
Retailer 9$3,415 CAD
Retailer 12$3,883 CAD
Retailer 8$4,765 CAD
Retailer 2$4,931 CAD
Retailer 11$4,988 CAD
Retailer 6$5,063 CAD
Retailer 3$6,046 CAD
Retailer 7$8,265 CAD
Retailer 4$11,151 CAD
Brilliant Earth$15,687 CAD

29 data points across 13 retailers

12 retailers$3,075 CAD to $15,687 CAD

A
Cheapest Retailer
-
$3,075 CAD
$2,201 USD
Final sale: no returns
Retailer 2
-
$3,185 CAD
$2,280 USD
View
Price last confirmed 20 days ago
A
Retailer 3
-
$3,415 CAD
$2,445 USD
View
A
Retailer 4
-
$3,883 CAD
$2,780 USD
View
A
Retailer 5
-
$4,765 CAD
$3,411 USD
View
A
Retailer 6
-
$4,931 CAD
ZAR 57,031 ZAR
View
Retailer 7
-
$4,988 CAD
$3,571 USD
View
Price last confirmed 12 days ago
A
Retailer 8
-
$5,063 CAD
€3,452 EUR
View
Retailer 9
-
$6,046 CAD
£3,408 GBP
View
Price last confirmed 9 days ago
B+
Retailer 10
-
$8,265 CAD
$5,917 USD
View
B+
Retailer 11
-
$11,151 CAD
$7,983 USD
View
Most Expensive
B
Brilliant Earth
20602013A · Oct 29
$15,687 CAD
$11,230 USD
View
11 more retailers have this diamond
Prices start from $3,075 CADSave up to $12,613 CAD

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
10.26ct Cushion
$3,075 CAD