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Round|Lab Grown|IGI

1.70ct J SI2 Round Lab Grown Diamond

EX • J/SI2 • IGI LG499105228

Shape and cutting style on the report: Round brilliant

Certificate IGI LG499105228

Diamond specifications and retailer prices

From $1,657 CAD
$1,184 USD
As of October 29, 2026
Save $4,553 CAD (73%) vs most expensive(unlock to see where)
10 retailers carry this diamond
Most expensive: $6,211 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 LG499105228 or 499105228. Listed at 10 retailers as of October 29, 2026, with prices from $1,657 to $6,211, a $4,553 spread on the same certified stone. MOH London lists it at $6,211. 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 angle35.3°
Pavilion angle40.3°
OriginLab Grown
Grading LabIGI
CertificateIGI LG499105228
Dimensions7.55 × 7.61 × 4.75 mm
L/W Ratio1.01
Girdle conditionFaceted
Culet sizePointed
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process and may include post-growth treatment Type IIa
Top View
7.55 mm7.61 mm1.70 ctJ / SI2
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG499105228
Side View
Table 54.5%Crown 35.3°Girdle: MediumPavilion 40.3°Culet: NoneDepth 62.6%

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: Oct 29
Current: $6,211 CAD|Low: $1,694 CAD|High: $6,260 CAD|Avg: $3,154 CAD|+0.5%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
October 29, 2026
Retailer 2$1,694 CAD
Retailer 4$1,803 CAD
Retailer 5$1,856 CAD
Retailer 7$2,736 CAD
Retailer 3$3,050 CAD
Retailer 6$3,789 CAD
Retailer 8$4,299 CAD
MOH London$6,211 CAD

13 data points across 8 retailers

10 retailers$1,657 CAD to $6,211 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
B+
Retailer 4
-
$1,856 CAD
$1,326 USD
View
Final sale: no returns
B+
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
LG499105228 · Oct 29
$6,211 CAD
£3,494 GBP
View
9 more retailers have this diamond
Prices start from $1,657 CADSave up to $4,553 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