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Cushion|Lab Grown|IGI

1.61ct G SI1 Cushion Lab Grown Diamond

ID • G/SI1 • IGI LG523278357

Shape and cutting style on the report: Cushion brilliant

Certificate IGI LG523278357

Diamond specifications and retailer prices

From $288 CAD
$206 USD
As of October 30, 2026
Save $1,310 CAD (82%) vs most expensive(unlock to see where)
14 retailers carry this diamond
Most expensive: $1,598 CAD at Reve Diamonds · As of October 30, 2026
View at Reve Diamonds

About this 1.61ct lab-grown cushion diamond

This 1.61ct lab-grown cushion sits in the one-and-a-half to two carat band, graded G colour (near-colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG523278357 or 523278357. Listed at 14 retailers as of October 30, 2026, with prices from $288 to $1,598, a $1,310 spread on the same certified stone. Reve Diamonds lists it at $1,598. 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

1.61
Carat
G
Color
SI1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle35.8°
Pavilion angle30.4°
OriginLab Grown
Grading LabIGI
CertificateIGI LG523278357
Dimensions7.54 × 6.05 × 4.08 mm
L/W Ratio1.25
Girdle conditionFaceted
Culet sizePointed
Cert comments
Faint Blue 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
7.54 mm6.05 mm1.61 ctG / SI1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG523278357
Side View
Table 58.0%Crown 35.8°Girdle: MED-THKPavilion 30.4°Culet: NoneDepth 67.4%

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 30
Current: $578 CAD|Low: $288 CAD|High: $1,537 CAD|Avg: $792 CAD|+4.6%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
October 31, 2026
Retailer 2$288 CAD
Retailer 9$320 CAD
Retailer 7$430 CAD
Retailer 5$529 CAD
Retailer 1$578 CAD
Retailer 3$633 CAD
Retailer 4$757 CAD
Retailer 11$791 CAD
Retailer 8$1,159 CAD
Retailer 10$1,495 CAD
Retailer 6$1,501 CAD

43 data points across 11 retailers

14 retailers$288 CAD to $1,598 CAD

A
Cheapest Retailer
-
$288 CAD
$206 USD
Final sale: no returns
A
Retailer 2
-
$320 CAD
$229 USD
View
B+
Retailer 3
-
$430 CAD
$308 USD
View
A
Retailer 4
-
$529 CAD
€361 EUR
View
A
Retailer 5
-
$578 CAD
£326 GBP
View
A
Retailer 6
-
$633 CAD
$453 USD
View
A
Retailer 7
-
$735 CAD
$526 USD
View
A
Retailer 8
-
$757 CAD
$542 USD
View
A
Retailer 9
-
$791 CAD
$566 USD
View
B+
Retailer 10
-
$1,102 CAD
$789 USD
View
Retailer 11
-
$1,159 CAD
$830 USD
View
Price last confirmed 10 days ago
B
Retailer 12
-
$1,495 CAD
$1,070 USD
View
B+
Retailer 13
-
$1,501 CAD
£846 GBP
View
Most Expensive
B
Reve Diamonds
EF81FED1D · Oct 30
$1,598 CAD
$1,144 USD
View
13 more retailers have this diamond
Prices start from $288 CADSave up to $1,310 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
1.61ct Cushion
$288 CAD