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Oval|Lab Grown|IGI

1.70ct J SI2 Oval Lab Grown Diamond

ID • J/SI2 • IGI LG451056578

Shape and cutting style on the report: Oval brilliant

Certificate IGI LG451056578

Diamond specifications and retailer prices

From $1,190 CAD
$850 USD
As of October 29, 2026
Save $2,511 CAD (68%) vs most expensive(unlock to see where)
10 retailers carry this diamond
Most expensive: $6,067 CAD at MOH London · As of October 21, 2026
View at MOH London

About this 1.7ct lab-grown oval diamond

This 1.7ct lab-grown oval 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 LG451056578 or 451056578. Listed at 10 retailers as of October 26, 2026, with a 211% 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

1.70
Carat
J
Color
SI2
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle36.5°
Pavilion angle40.7°
OriginLab Grown
Grading LabIGI
CertificateIGI LG451056578
Dimensions9.40 × 6.73 × 4.21 mm
L/W Ratio1.40
Girdle conditionFaceted
Culet sizePointed
Cert comments
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Top View
9.40 mm6.73 mm1.70 ctJ / SI2
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG451056578
Side View
Table 57.0%Crown 36.5°Girdle: MED-VTKPavilion 40.7°Culet: NoneDepth 62.6%

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: $6,067 CAD|Low: $1,190 CAD|High: $6,107 CAD|Avg: $2,845 CAD|+0.5%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
October 21, 2026
Retailer 4$1,190 CAD
Retailer 2$1,619 CAD
Retailer 8$1,762 CAD
Retailer 9$1,812 CAD
Retailer 5$1,878 CAD
Retailer 11$2,683 CAD
Retailer 6$2,985 CAD
Retailer 7$3,521 CAD
Retailer 10$3,701 CAD
Retailer 3$4,204 CAD
MOH London$6,067 CAD

13 data points across 11 retailers

10 retailers$1,190 CAD to $3,701 CAD

A
Cheapest Retailer
-
$1,190 CAD
$850 USD
A
Retailer 2
-
$1,619 CAD
$1,157 USD
View
B+
Retailer 3
-
$1,762 CAD
$1,259 USD
View
B+
Retailer 4
-
$1,812 CAD
$1,295 USD
View
Final sale: no returns
B+
Retailer 5
-
$1,878 CAD
$1,342 USD
View
Price last confirmed 17 days ago
B+
Retailer 6
-
$1,878 CAD
$1,342 USD
View
B
Retailer 7
-
$2,985 CAD
$2,133 USD
View
B
Retailer 8
-
$3,521 CAD
$2,516 USD
View
B
Retailer 9
-
$3,701 CAD
$2,644 USD
View
Most Expensive
B
MOH London
LG451056578 · Oct 21
$6,067 CAD
£3,413 GBP
View
Price last confirmed 8 days ago
9 more retailers have this diamond
Prices start from $1,190 CADSave up to $2,511 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 Oval
$1,190 CAD