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Oval|Lab Grown|IGI

1.59ct D SI1 Oval Lab Grown Diamond

ID • D/SI1 • IGI LG578326356

Shape and cutting style on the report: Oval brilliant

Certificate IGI LG578326356

Diamond specifications and retailer prices

From $395 CAD
$282 USD
As of October 26, 2026
Save $1,327 CAD (77%) vs most expensive(unlock to see where)
23 retailers carry this diamond
Most expensive: $1,722 CAD at Brilliant Earth · As of October 29, 2026
View at Brilliant Earth

About this 1.59ct lab-grown oval diamond

This 1.59ct lab-grown oval 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 LG578326356 or 578326356. Listed at 23 retailers as of October 26, 2026, with prices from $395 to $1,722, a $1,327 spread on the same certified stone. Brilliant Earth lists it at $1,722. 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 angle37.2°
Pavilion angle40.4°
OriginLab Grown
Grading LabIGI
CertificateIGI LG578326356
Dimensions9.22 × 6.60 × 4.14 mm
L/W Ratio1.40
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
9.22 mm6.60 mm1.59 ctD / SI1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG578326356
Side View
Table 59.0%Crown 37.2°Girdle: MED-STKPavilion 40.4°Culet: NoneDepth 62.7%

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 26
Current: $1,722 CAD|Low: $272 CAD|High: $1,777 CAD|Avg: $917 CAD|-3.1%
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 29, 2026
Retailer 12$395 CAD
Retailer 4$417 CAD
Retailer 11$599 CAD
Retailer 6$707 CAD
Retailer 3$773 CAD
Retailer 13$778 CAD
Retailer 2$800 CAD
Retailer 7$853 CAD
Retailer 5$930 CAD
Retailer 8$1,309 CAD
Retailer 10$1,365 CAD
Retailer 9$1,705 CAD
Brilliant Earth$1,722 CAD

42 data points across 13 retailers

23 retailers$395 CAD to $1,722 CAD

A
Retailer 1
-
$342 CAD
$244 USD
Price last confirmed 30 days ago
A
Retailer 2
-
$395 CAD
$282 USD
View
Final sale: no returns
A
Retailer 3
-
$396 CAD
$283 USD
View
Price last confirmed 15 days ago
A
Retailer 4
-
$396 CAD
$283 USD
View
Price last confirmed 33 days ago
A
Retailer 5
-
$417 CAD
$298 USD
View
Price last confirmed 29 days ago
A
Retailer 6
-
$423 CAD
$302 USD
View
A
Retailer 7
-
$423 CAD
$302 USD
View
Price last confirmed 19 days ago
A
Retailer 8
-
$423 CAD
$302 USD
View
Price last confirmed 27 days ago
A
Retailer 9
-
$502 CAD
HK$2,800 HKD
View
B+
Retailer 10
-
$599 CAD
$428 USD
View
A
Retailer 11
-
$707 CAD
€481 EUR
View
A
Retailer 12
-
$773 CAD
$552 USD
View
A
Retailer 13
-
$778 CAD
$556 USD
View
B+
Retailer 14
-
$800 CAD
£450 GBP
View
B+
Retailer 15
-
$853 CAD
A$938 AUD
View
B+
Retailer 16
-
$930 CAD
$665 USD
View
B+
Retailer 17
-
$1,309 CAD
$935 USD
View
Price last confirmed 10 days ago
B
Retailer 18
-
$1,360 CAD
$972 USD
View
Price last confirmed 19 days ago
B
Retailer 19
-
$1,360 CAD
$972 USD
View
Price last confirmed 29 days ago
B
Retailer 20
-
$1,365 CAD
$975 USD
View
B
Retailer 21
-
$1,432 CAD
SGD 1,383 SGD
View
B
Retailer 22
-
$1,705 CAD
£959 GBP
View
Price last confirmed 8 days ago
Most Expensive
B
Brilliant Earth
7306134A · Oct 29
$1,722 CAD
$1,230 USD
View
22 more retailers have this diamond
Prices start from $395 CADSave up to $1,327 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 Oval
$395 CAD