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Cushion|Lab Grown|IGI

11.59ct G VS1 Cushion Lab Grown Diamond

ID • G/VS1 • IGI LG821678406

Shape and cutting style on the report: Cushion modified brilliant

Certificate IGI LG821678406

Diamond specifications and retailer prices

From $10,559 CAD
£5,952 GBP
As of October 30, 2026
Save $19,065 CAD (64%) vs most expensive(unlock to see where)
10 retailers carry this diamond
Most expensive: $29,623 CAD at Taylor and Hart · As of October 31, 2026
View at Taylor and Hart

About this 11.59ct lab-grown cushion diamond

This 11.59ct lab-grown cushion sits in the over five carat band, graded G colour (near-colourless) and VS1 clarity (very-slightly-included), with a top-tier cut grade and certified by IGI LG821678406 or 821678406. Listed at 10 retailers as of October 30, 2026, with prices from $10,559 to $29,623, a $19,065 spread on the same certified stone. Taylor and Hart lists it at $29,623. 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

11.59
Carat
G
Color
VS1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle35.1°
Pavilion angle43.7°
OriginLab Grown
Grading LabIGI
CertificateIGI LG821678406
Dimensions16.80 × 10.80 × 6.81 mm
L/W Ratio1.56
Girdle conditionFaceted
Culet sizeLarge
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
16.80 mm10.80 mm11.59 ctG / VS1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG821678406
Side View
Table 63.0%Crown 35.1°Girdle: MED-STKPavilion 43.7°Culet: LargeDepth 63.1%

Caratlytics Score

How it works →
B+
Very Good
Strong quality and value balance
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Oct 30
Current: $10,559 CAD|Low: $8,277 CAD|High: $29,623 CAD|Avg: $16,058 CAD|+0.5%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Taylor and Hart
October 30, 2026
Retailer 1$10,559 CAD
Retailer 4$11,364 CAD
Retailer 8$11,688 CAD
Retailer 9$12,473 CAD
Retailer 6$12,748 CAD
Retailer 2$12,770 CAD
Retailer 5$15,528 CAD
Retailer 3$15,707 CAD
Retailer 7$25,764 CAD
Taylor and Hart$29,623 CAD

36 data points across 10 retailers

10 retailers$10,559 CAD to $29,623 CAD

B+
Cheapest Retailer
-
$10,559 CAD
£5,952 GBP
B
Retailer 2
-
$11,364 CAD
$8,135 USD
View
B
Retailer 3
-
$11,688 CAD
£6,588 GBP
View
B
Retailer 4
-
$12,473 CAD
$8,929 USD
View
B
Retailer 5
-
$12,748 CAD
$9,126 USD
View
B
Retailer 6
-
$12,770 CAD
ZAR 147,689 ZAR
View
B
Retailer 7
-
$15,528 CAD
$11,116 USD
View
Retailer 8
-
$15,707 CAD
A$17,299 AUD
View
Price last confirmed 9 days ago
B
Retailer 9
-
$25,764 CAD
SGD 24,924 SGD
View
Most Expensive
B
Taylor and Hart
XNGMGFI · Oct 31
$29,623 CAD
$21,207 USD
View
9 more retailers have this diamond
Prices start from $10,559 CADSave up to $19,065 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.

B+
11.59ct Cushion
$10,559 CAD