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Round|Lab Grown|IGI

1.59ct J SI2 Round Lab Grown Diamond

EX • J/SI2 • IGI LG440010931

Shape and cutting style on the report: Round brilliant

Certificate IGI LG440010931

Diamond specifications and retailer prices

From $1,552 CAD
$1,109 USD
As of October 29, 2026
Save $2,101 CAD (58%) vs most expensive(unlock to see where)
10 retailers carry this diamond
Most expensive: $5,818 CAD at MOH London · As of October 21, 2026
View at MOH London

About this 1.59ct lab-grown round diamond

This 1.59ct lab-grown round sits in the one-and-a-half to two carat band, graded J colour (near-colourless) and SI2 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG440010931 or 440010931. Listed at 10 retailers as of October 28, 2026, with a 135% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. 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
J
Color
SI2
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle35.4°
Pavilion angle41.5°
OriginLab Grown
Grading LabIGI
CertificateIGI LG440010931
Dimensions7.42 × 7.40 × 4.67 mm
L/W Ratio1.00
Girdle conditionFaceted
Culet sizePointed
Cert comments
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Top View
7.42 mm7.40 mm1.59 ctJ / SI2
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG440010931
Side View
Table 58.5%Crown 35.4°Girdle: MED-STKPavilion 41.5°Culet: NoneDepth 63.1%

Caratlytics Score

How it works →
A
Excellent
Excellent quality and great value
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Oct 29
Current: $5,818 CAD|Low: $1,240 CAD|High: $5,857 CAD|Avg: $2,719 CAD|+0.6%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
October 18, 2026
Retailer 2$1,552 CAD
Retailer 4$1,568 CAD
Retailer 7$1,689 CAD
Retailer 9$1,738 CAD
Retailer 5$1,801 CAD
Retailer 11$2,584 CAD
Retailer 6$2,864 CAD
Retailer 8$3,376 CAD
Retailer 10$3,653 CAD
Retailer 3$4,028 CAD
MOH London$5,818 CAD

12 data points across 11 retailers

10 retailers$1,552 CAD to $3,653 CAD

A
Cheapest Retailer
-
$1,552 CAD
$1,109 USD
A
Retailer 2
-
$1,568 CAD
$1,120 USD
View
A
Retailer 3
-
$1,689 CAD
$1,207 USD
View
A
Retailer 4
-
$1,738 CAD
$1,242 USD
View
Final sale: no returns
B+
Retailer 5
-
$1,801 CAD
$1,287 USD
View
B+
Retailer 6
-
$1,801 CAD
$1,287 USD
View
Price last confirmed 17 days ago
B
Retailer 7
-
$2,864 CAD
$2,046 USD
View
B
Retailer 8
-
$3,376 CAD
$2,412 USD
View
B
Retailer 9
-
$3,653 CAD
$2,610 USD
View
Most Expensive
B
MOH London
LG440010931 · Oct 21
$5,818 CAD
£3,273 GBP
View
Price last confirmed 8 days ago
9 more retailers have this diamond
Prices start from $1,552 CADSave up to $2,101 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 Round
$1,552 CAD