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1.15ct J SI1 Round Lab Grown Diamond

EX • J/SI1 • IGI LG445039317

Shape and cutting style on the report: Round brilliant

Certificate IGI LG445039317

Diamond specifications and retailer prices

From $922 CAD
As of November 5, 2026
Save $4,938 CAD (84%) vs most expensive(unlock to see where)
13 retailers carry this diamond
Most expensive: $5,860 CAD at MOH London · As of November 5, 2026
View at MOH London

About this 1.15ct lab-grown round diamond

This 1.15ct lab-grown round sits in the classic one-carat band, graded J colour (near-colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG445039317 or 445039317. Listed at 13 retailers as of November 5, 2026, with prices from $922 to $5,860, a $4,938 spread on the same certified stone. MOH London lists it at $5,860. 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

1.15
Carat
J
Color
SI1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle31.4°
Pavilion angle41.4°
OriginLab Grown
Grading LabIGI
CertificateIGI LG445039317
Dimensions6.77 × 6.78 × 4.10 mm
L/W Ratio1.00
Girdle conditionFaceted
Culet sizePointed
Cert comments
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Top View
6.77 mm6.78 mm1.15 ctJ / SI1
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG445039317
Side View
Table 59.5%Crown 31.4°Girdle: MED-STKPavilion 41.4°Culet: NoneDepth 60.5%

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: Nov 5
Current: $5,860 CAD|Low: $922 CAD|High: $5,956 CAD|Avg: $2,451 CAD|-0.3%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
Retailer 13
Retailer 14
November 6, 2026
Retailer 8$922 CAD
Retailer 9$1,494 CAD
Retailer 14$1,626 CAD
Retailer 13$1,673 CAD
Retailer 10$1,733 CAD
Retailer 12$1,733 CAD
Retailer 4$1,976 CAD
Retailer 7$1,987 CAD
Retailer 5$2,475 CAD
Retailer 11$2,761 CAD
Retailer 2$2,947 CAD
Retailer 3$3,248 CAD
Retailer 6$3,515 CAD
MOH London$5,860 CAD

43 data points across 14 retailers

13 retailers$922 CAD to $5,860 CAD

A
Cheapest Retailer
-
$922 CAD
B+
Retailer 2
-
$1,494 CAD
View
B+
Retailer 3
-
$1,626 CAD
View
B+
Retailer 4
-
$1,673 CAD
View
Final sale: no returns
Retailer 5
-
$1,733 CAD
View
Price last confirmed 25 days ago
B+
Retailer 6
-
$1,733 CAD
View
B+
Retailer 7
-
$1,976 CAD
View
B+
Retailer 8
-
$1,987 CAD
View
B
Retailer 9
-
$2,761 CAD
View
B
Retailer 10
-
$2,947 CAD
View
B
Retailer 11
-
$3,248 CAD
View
B
Retailer 12
-
$3,515 CAD
View
Most Expensive
B
MOH London
LG445039317 · Nov 5
$5,860 CAD
£3,304 GBP
View
12 more retailers have this diamond
Prices start from $922 CADSave up to $4,938 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
1.15ct Round
$922 CAD