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Round|Lab Grown|IGI

1.70ct J SI2 Round Lab Grown Diamond

EX • J/SI2 • IGI LG451057285

Shape and cutting style on the report: Round brilliant

Certificate IGI LG451057285

Diamond specifications and retailer prices

From $1,313 CAD
$940 USD
As of October 30, 2026
Save $4,885 CAD (79%) vs most expensive(unlock to see where)
10 retailers carry this diamond
Most expensive: $6,199 CAD at MOH London · As of October 29, 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 LG451057285 or 451057285. Listed at 10 retailers as of October 29, 2026, with prices from $1,313 to $6,199, a $4,885 spread on the same certified stone. MOH London lists it at $6,199. 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
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle33.3°
Pavilion angle40.2°
OriginLab Grown
Grading LabIGI
CertificateIGI LG451057285
Dimensions7.73 × 7.77 × 4.58 mm
L/W Ratio1.01
Girdle conditionFaceted
Culet sizePointed
Cert comments
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Top View
7.73 mm7.77 mm1.70 ctJ / SI2
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG451057285
Side View
Table 59.5%Crown 33.3°Girdle: MED-STKPavilion 40.2°Culet: NoneDepth 59.0%

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 30
Current: $6,199 CAD|Low: $1,313 CAD|High: $6,239 CAD|Avg: $3,108 CAD|-0.5%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
October 30, 2026
Retailer 2$1,313 CAD
Retailer 4$1,799 CAD
Retailer 5$1,852 CAD
Retailer 7$2,731 CAD
Retailer 3$3,044 CAD
Retailer 6$3,781 CAD
Retailer 8$4,291 CAD
MOH London$6,199 CAD

12 data points across 8 retailers

10 retailers$1,313 CAD to $6,199 CAD

A
Cheapest Retailer
-
$1,313 CAD
$940 USD
B+
Retailer 2
-
$1,654 CAD
$1,184 USD
View
B+
Retailer 3
-
$1,799 CAD
$1,288 USD
View
B+
Retailer 4
-
$1,852 CAD
$1,326 USD
View
Final sale: no returns
B+
Retailer 5
-
$1,919 CAD
$1,374 USD
View
Retailer 6
-
$1,919 CAD
$1,374 USD
View
Price last confirmed 17 days ago
B
Retailer 7
-
$3,044 CAD
$2,179 USD
View
B
Retailer 8
-
$3,597 CAD
$2,575 USD
View
B
Retailer 9
-
$3,781 CAD
$2,707 USD
View
Most Expensive
B
MOH London
LG451057285 · Oct 29
$6,199 CAD
£3,494 GBP
View
9 more retailers have this diamond
Prices start from $1,313 CADSave up to $4,885 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
$1,313 CAD