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Cushion|Lab Grown|IGI

1.89ct D IF Cushion Lab Grown Diamond

ID • D/IF • IGI LG718507117

Shape and cutting style on the report: Cushion modified brilliant

Certificate IGI LG718507117

Diamond specifications and retailer prices

From $697 CAD
$498 USD
As of October 28, 2026
Save $6,945 CAD (91%) vs most expensive(unlock to see where)
13 retailers carry this diamond
Most expensive: $7,642 CAD at Brilliant Earth · As of October 29, 2026
View at Brilliant Earth

About this 1.89ct lab-grown cushion diamond

This 1.89ct lab-grown cushion sits in the one-and-a-half to two carat band, graded D colour (colourless) and IF clarity (flawless or internally-flawless), with a top-tier cut grade and certified by IGI LG718507117 or 718507117. Listed at 13 retailers as of October 28, 2026, with prices from $697 to $7,642, a $6,945 spread on the same certified stone. Brilliant Earth lists it at $7,642. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.89
Carat
D
Color
IF
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle34°
Pavilion angle42.1°
OriginLab Grown
Grading LabIGI
CertificateIGI LG718507117
Dimensions8.33 × 6.50 × 4.57 mm
L/W Ratio1.28
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
8.33 mm6.50 mm1.89 ctD / IF
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG718507117
Side View
Table 58.0%Crown 34°Girdle: STK-THKPavilion 42.1°Culet: NoneDepth 70.3%

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 28
Current: $7,642 CAD|Low: $498 CAD|High: $7,880 CAD|Avg: $2,759 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 30, 2026
Retailer 5$697 CAD
Retailer 8$938 CAD
Retailer 13$1,015 CAD
Retailer 10$1,113 CAD
Retailer 6$1,221 CAD
Retailer 3$1,724 CAD
Retailer 2$1,808 CAD
Retailer 11$2,073 CAD
Retailer 7$2,867 CAD
Retailer 4$4,583 CAD
Retailer 12$4,584 CAD
Retailer 9$5,039 CAD
Brilliant Earth$7,642 CAD

33 data points across 13 retailers

13 retailers$697 CAD to $7,642 CAD

A
Cheapest Retailer
-
$697 CAD
$498 USD
Final sale: no returns
A
Retailer 2
-
$938 CAD
$670 USD
View
A
Retailer 3
-
$1,015 CAD
$725 USD
View
A
Retailer 4
-
$1,113 CAD
$795 USD
View
A
Retailer 5
-
$1,221 CAD
€831 EUR
View
A
Retailer 6
-
$1,724 CAD
$1,232 USD
View
A
Retailer 7
-
$1,808 CAD
A$1,987 AUD
View
A
Retailer 8
-
$2,073 CAD
$1,481 USD
View
B+
Retailer 9
-
$2,867 CAD
£1,613 GBP
View
Retailer 10
-
$4,583 CAD
A$5,038 AUD
View
Price last confirmed 21 days ago
Retailer 11
-
$4,584 CAD
$3,275 USD
View
Price last confirmed 8 days ago
B
Retailer 12
-
$5,039 CAD
$3,600 USD
View
Most Expensive
B
Brilliant Earth
14895653Y · Oct 29
$7,642 CAD
$5,460 USD
View
12 more retailers have this diamond
Prices start from $697 CADSave up to $6,945 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
1.89ct Cushion
$697 CAD