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Cushion|Lab Grown|IGI

1.59ct D SI1 Cushion Lab Grown Diamond

ID • D/SI1 • IGI LG693553609

Shape and cutting style on the report: Cushion modified brilliant

Certificate IGI LG693553609

Diamond specifications and retailer prices

From $575 CAD
$411 USD
As of October 30, 2026
Save $1,286 CAD (69%) vs most expensive(unlock to see where)
9 retailers carry this diamond
Most expensive: $1,861 CAD at Brilliant Earth · As of October 29, 2026
View at Brilliant Earth

About this 1.59ct lab-grown cushion diamond

This 1.59ct 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 LG693553609 or 693553609. Listed at 9 retailers as of October 29, 2026, with prices from $575 to $1,861, a $1,286 spread on the same certified stone. Brilliant Earth lists it at $1,861. 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

1.59
Carat
D
Color
SI1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle29.3°
Pavilion angle42.4°
OriginLab Grown
Grading LabIGI
CertificateIGI LG693553609
Dimensions8.02 × 6.31 × 4.23 mm
L/W Ratio1.27
Girdle conditionFaceted
Culet sizePointed
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
8.02 mm6.31 mm1.59 ctD / SI1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG693553609
Side View
Table 64.0%Crown 29.3°Girdle: MED-STKPavilion 42.4°Culet: NoneDepth 67.0%

Caratlytics Score

How it works →
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: $1,861 CAD|Low: $328 CAD|High: $1,903 CAD|Avg: $872 CAD|-2.2%
Brilliant Earth
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
October 30, 2026
Retailer 6$328 CAD
Retailer 5$367 CAD
Retailer 7$575 CAD
Retailer 3$580 CAD
Retailer 2$595 CAD
Retailer 9$746 CAD
Retailer 8$799 CAD
Retailer 4$1,541 CAD
Brilliant Earth$1,861 CAD

36 data points across 9 retailers

9 retailers$575 CAD to $1,861 CAD

Retailer 1
-
$328 CAD
$234 USD
Price last confirmed 18 days ago
Retailer 2
-
$367 CAD
£206 GBP
View
Price last confirmed 13 days ago
B+
Retailer 3
-
$575 CAD
$411 USD
View
A
Retailer 4
-
$580 CAD
€395 EUR
View
A
Retailer 5
-
$595 CAD
£335 GBP
View
A
Retailer 6
-
$746 CAD
$533 USD
View
B+
Retailer 7
-
$799 CAD
$571 USD
View
B
Retailer 8
-
$1,541 CAD
£867 GBP
View
Most Expensive
B
Brilliant Earth
13584838A · Oct 29
$1,861 CAD
$1,330 USD
View
8 more retailers have this diamond
Prices start from $575 CADSave up to $1,286 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
1.59ct Cushion
$575 CAD