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Cushion|Lab Grown|IGI

1.61ct D SI1 Cushion Lab Grown Diamond

ID • D/SI1 • IGI LG544280403

Shape and cutting style on the report: Cushion brilliant

Certificate IGI LG544280403

Diamond specifications and retailer prices

From $310 CAD
$221 USD
As of October 28, 2026
Save $2,625 CAD (89%) vs most expensive(unlock to see where)
13 retailers carry this diamond
Most expensive: $2,936 CAD at Brilliant Earth · As of October 28, 2026
View at Brilliant Earth

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 D colour (colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG544280403 or 544280403. Listed at 13 retailers as of October 28, 2026, with prices from $310 to $2,936, a $2,625 spread on the same certified stone. Brilliant Earth lists it at $2,936. 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
D
Color
SI1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle33.6°
Pavilion angle28.2°
OriginLab Grown
Grading LabIGI
CertificateIGI LG544280403
Dimensions7.72 × 6.20 × 3.88 mm
L/W Ratio1.25
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
7.72 mm6.20 mm1.61 ctD / SI1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG544280403
Side View
Table 64.0%Crown 33.6°Girdle: MED-THKPavilion 28.2°Culet: NoneDepth 62.6%

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: $2,936 CAD|Low: $310 CAD|High: $2,936 CAD|Avg: $951 CAD
Brilliant Earth
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
October 29, 2026
Retailer 9$310 CAD
Retailer 3$466 CAD
Retailer 2$569 CAD
Retailer 4$630 CAD
Retailer 10$697 CAD
Retailer 8$818 CAD
Retailer 7$881 CAD
Retailer 5$1,468 CAD
Retailer 6$1,623 CAD
Brilliant Earth$2,936 CAD

42 data points across 10 retailers

13 retailers$310 CAD to $2,936 CAD

A
Cheapest Retailer
-
$310 CAD
$221 USD
Final sale: no returns
B+
Retailer 2
-
$466 CAD
$332 USD
View
A
Retailer 3
-
$569 CAD
€386 EUR
View
A
Retailer 4
-
$630 CAD
£353 GBP
View
A
Retailer 5
-
$697 CAD
$496 USD
View
A
Retailer 6
-
$768 CAD
$547 USD
View
A
Retailer 7
-
$818 CAD
$582 USD
View
B+
Retailer 8
-
$881 CAD
$627 USD
View
B+
Retailer 9
-
$1,185 CAD
$843 USD
View
B+
Retailer 10
-
$1,468 CAD
$1,045 USD
View
Price last confirmed 8 days ago
B
Retailer 11
-
$1,623 CAD
£910 GBP
View
B
Retailer 12
-
$1,668 CAD
$1,188 USD
View
Most Expensive
B
Brilliant Earth
10789422A · Oct 28
$2,936 CAD
$2,090 USD
View
12 more retailers have this diamond
Prices start from $310 CADSave up to $2,625 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
$310 CAD