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Cushion|Lab Grown|IGI

3.09ct F IF Cushion Lab Grown Diamond

EX • F/IF • IGI LG681589668

Shape and cutting style on the report: Square cushion brilliant

Certificate IGI LG681589668

Diamond specifications and retailer prices

From $1,784 CAD
As of November 4, 2026
Save $6,382 CAD (78%) vs most expensive(unlock to see where)
19 retailers carry this diamond
Most expensive: $8,166 CAD at Brilliant Earth · As of November 4, 2026
View at Brilliant Earth

About this 3.09ct lab-grown cushion diamond

This 3.09ct lab-grown cushion sits in the three to five carat band, graded F colour (colourless) and IF clarity (flawless or internally-flawless), with a top-tier cut grade and certified by IGI LG681589668 or 681589668. Listed at 19 retailers as of November 4, 2026, with prices from $1,784 to $8,166, a $6,382 spread on the same certified stone. Brilliant Earth lists it at $8,166. 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

3.09
Carat
F
Color
IF
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle37.3°
Pavilion angle37.7°
OriginLab Grown
Grading LabIGI
CertificateIGI LG681589668
Dimensions8.41 × 8.41 × 5.41 mm
L/W Ratio1.00
Girdle conditionFaceted
Culet sizePointed
Cert comments
As Grown - No indication of post-growth treatment This Laboratory Grown Diamond was created by High Pressure High Temperature (HPHT) growth process Type II
Top View
8.41 mm8.41 mm3.09 ctF / IF
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG681589668
Side View
Table 61.0%Crown 37.3°Girdle: MED-STKPavilion 37.7°Culet: NoneDepth 64.3%

Caratlytics Score

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A
Excellent
Excellent quality and great value
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Price History

Last verified: Nov 4
Current: $8,166 CAD|Low: $1,487 CAD|High: $8,180 CAD|Avg: $4,224 CAD|-0.2%
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
November 5, 2026
Retailer 10$1,760 CAD
Retailer 13$1,784 CAD
Retailer 8$2,316 CAD
Retailer 11$2,349 CAD
Retailer 16$2,448 CAD
Retailer 17$3,099 CAD
Retailer 15$3,477 CAD
Retailer 12$3,506 CAD
Retailer 14$3,579 CAD
Retailer 6$3,953 CAD
Retailer 4$4,247 CAD
Retailer 3$4,274 CAD
Retailer 5$4,576 CAD
Retailer 18$5,010 CAD
Retailer 2$5,208 CAD
Retailer 7$5,359 CAD
Retailer 9$6,180 CAD
Brilliant Earth$8,166 CAD

36 data points across 18 retailers

19 retailers$1,784 CAD to $8,166 CAD

Retailer 1
-
$1,760 CAD
Price last confirmed 24 days ago
A
Retailer 2
-
$1,784 CAD
View
A
Retailer 3
-
$2,316 CAD
View
A
Retailer 4
-
$2,349 CAD
View
A
Retailer 5
-
$2,448 CAD
View
Retailer 6
-
$2,639 CAD
View
Price last confirmed 24 days ago
A
Retailer 7
-
$3,099 CAD
View
A
Retailer 8
-
$3,477 CAD
View
A
Retailer 9
-
$3,506 CAD
View
Final sale: no returns
A
Retailer 10
-
$3,579 CAD
View
A
Retailer 11
-
$3,953 CAD
View
A
Retailer 12
-
$4,247 CAD
View
A
Retailer 13
-
$4,274 CAD
View
B+
Retailer 14
-
$4,576 CAD
View
B+
Retailer 15
-
$5,010 CAD
View
B+
Retailer 16
-
$5,208 CAD
View
B+
Retailer 17
-
$5,359 CAD
View
B+
Retailer 18
-
$6,180 CAD
View
Most Expensive
B
Brilliant Earth
13438341A · Nov 4
$8,166 CAD
$5,860 USD
View
18 more retailers have this diamond
Prices start from $1,784 CADSave up to $6,382 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
3.09ct Cushion
$1,784 CAD