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Round|Lab Grown|IGI

1.70ct J SI2 Round Lab Grown Diamond

ID • J/SI2 • IGI LG451057952

Shape and cutting style on the report: Round brilliant

Certificate IGI LG451057952

Diamond specifications and retailer prices

From $1,657 CAD
$1,184 USD
As of October 29, 2026
Save $4,529 CAD (73%) vs most expensive(unlock to see where)
10 retailers carry this diamond
Most expensive: $6,186 CAD at MOH London · As of October 27, 2026
View at MOH London

About this 1.7ct lab-grown round diamond

This 1.7ct 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 LG451057952 or 451057952. Listed at 10 retailers as of October 27, 2026, with prices from $1,657 to $6,186, a $4,529 spread on the same certified stone. MOH London lists it at $6,186. 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

1.70
Carat
J
Color
SI2
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle33.2°
Pavilion angle41.5°
OriginLab Grown
Grading LabIGI
CertificateIGI LG451057952
Dimensions7.64 × 7.68 × 4.73 mm
L/W Ratio1.01
Girdle conditionFaceted
Culet sizePointed
Top View
7.64 mm7.68 mm1.70 ctJ / SI2
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG451057952
Side View
Table 58.0%Crown 33.2°Girdle: MED-STKPavilion 41.5°Culet: NoneDepth 61.8%

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: $6,186 CAD|Low: $1,324 CAD|High: $6,260 CAD|Avg: $2,885 CAD|-0.9%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
October 25, 2026
Retailer 2$1,657 CAD
Retailer 4$1,694 CAD
Retailer 7$1,803 CAD
Retailer 9$1,856 CAD
Retailer 5$1,923 CAD
Retailer 11$2,736 CAD
Retailer 6$3,050 CAD
Retailer 8$3,604 CAD
Retailer 10$3,789 CAD
Retailer 3$4,299 CAD
MOH London$6,186 CAD

15 data points across 11 retailers

10 retailers$1,657 CAD to $6,186 CAD

A
Cheapest Retailer
-
$1,657 CAD
$1,184 USD
A
Retailer 2
-
$1,694 CAD
$1,210 USD
View
A
Retailer 3
-
$1,803 CAD
$1,288 USD
View
A
Retailer 4
-
$1,856 CAD
$1,326 USD
View
Final sale: no returns
A
Retailer 5
-
$1,923 CAD
$1,374 USD
View
Retailer 6
-
$1,923 CAD
$1,374 USD
View
Price last confirmed 17 days ago
B
Retailer 7
-
$3,050 CAD
$2,179 USD
View
B
Retailer 8
-
$3,604 CAD
$2,575 USD
View
B
Retailer 9
-
$3,789 CAD
$2,707 USD
View
Most Expensive
B
MOH London
LG451057952 · Oct 27
$6,186 CAD
£3,480 GBP
View
9 more retailers have this diamond
Prices start from $1,657 CADSave up to $4,529 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
1.70ct Round
$1,657 CAD