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Round|Lab Grown|IGI

1.70ct J SI1 Round Lab Grown Diamond

ID • J/SI1 • IGI LG499125820

Shape and cutting style on the report: Round brilliant

Certificate IGI LG499125820

Diamond specifications and retailer prices

From $1,341 CAD
$960 USD
As of October 30, 2026
Save $5,526 CAD (80%) vs most expensive(unlock to see where)
12 retailers carry this diamond
Most expensive: $6,867 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 SI1 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG499125820 or 499125820. Listed at 12 retailers as of October 29, 2026, with prices from $1,341 to $6,867, a $5,526 spread on the same certified stone. MOH London lists it at $6,867. 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
SI1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle35.4°
Pavilion angle40.1°
OriginLab Grown
Grading LabIGI
CertificateIGI LG499125820
Dimensions7.71 × 7.75 × 4.64 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
7.71 mm7.75 mm1.70 ctJ / SI1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG499125820
Side View
Table 58.5%Crown 35.4°Girdle: THN-MEDPavilion 40.1°Culet: NoneDepth 60.0%

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 30
Current: $6,867 CAD|Low: $1,341 CAD|High: $6,914 CAD|Avg: $2,921 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
Retailer 12
Retailer 13
October 30, 2026
Retailer 2$1,341 CAD
Retailer 7$1,833 CAD
Retailer 11$1,995 CAD
Retailer 10$2,053 CAD
Retailer 8$2,126 CAD
Retailer 13$2,126 CAD
Retailer 3$2,368 CAD
Retailer 6$2,791 CAD
Retailer 5$2,938 CAD
Retailer 9$3,364 CAD
Retailer 4$3,963 CAD
Retailer 12$3,985 CAD
MOH London$6,867 CAD

23 data points across 13 retailers

12 retailers$1,341 CAD to $6,867 CAD

A
Cheapest Retailer
-
$1,341 CAD
$960 USD
B+
Retailer 2
-
$1,833 CAD
$1,312 USD
View
B+
Retailer 3
-
$1,995 CAD
$1,428 USD
View
B+
Retailer 4
-
$2,053 CAD
$1,470 USD
View
Final sale: no returns
Retailer 5
-
$2,126 CAD
$1,522 USD
View
Price last confirmed 18 days ago
B+
Retailer 6
-
$2,126 CAD
$1,522 USD
View
B+
Retailer 7
-
$2,368 CAD
$1,695 USD
View
B+
Retailer 8
-
$2,791 CAD
£1,573 GBP
View
B
Retailer 9
-
$3,364 CAD
$2,408 USD
View
B
Retailer 10
-
$3,963 CAD
$2,837 USD
View
B
Retailer 11
-
$3,985 CAD
$2,853 USD
View
Most Expensive
B
MOH London
LG499125820 · Oct 29
$6,867 CAD
£3,871 GBP
View
11 more retailers have this diamond
Prices start from $1,341 CADSave up to $5,526 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
$1,341 CAD