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1.73ct I SI1 Round Lab Grown Diamond

ID • I/SI1 • IGI LG478113784

Shape and cutting style on the report: Round brilliant

Certificate IGI LG478113784

Diamond specifications and retailer prices

From $1,383 CAD
$990 USD
As of October 30, 2026
Save $5,919 CAD (81%) vs most expensive(unlock to see where)
11 retailers carry this diamond
Most expensive: $7,302 CAD at MOH London · As of October 29, 2026
View at MOH London

About this 1.73ct lab-grown round diamond

This 1.73ct lab-grown round sits in the one-and-a-half to two carat band, graded I colour (near-colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG478113784 or 478113784. Listed at 11 retailers as of October 29, 2026, with prices from $1,383 to $7,302, a $5,919 spread on the same certified stone. MOH London lists it at $7,302. 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

1.73
Carat
I
Color
SI1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle33.4°
Pavilion angle40.1°
OriginLab Grown
Grading LabIGI
CertificateIGI LG478113784
Dimensions7.77 × 7.74 × 4.67 mm
L/W Ratio1.00
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
7.77 mm7.74 mm1.73 ctI / SI1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG478113784
Side View
Table 57.0%Crown 33.4°Girdle: MediumPavilion 40.1°Culet: NoneDepth 60.1%

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: $7,302 CAD|Low: $1,383 CAD|High: $7,361 CAD|Avg: $3,444 CAD|+0.5%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
October 30, 2026
Retailer 2$1,383 CAD
Retailer 4$2,193 CAD
Retailer 7$2,454 CAD
Retailer 5$2,544 CAD
Retailer 10$2,670 CAD
Retailer 8$2,780 CAD
Retailer 9$3,435 CAD
Retailer 6$4,004 CAD
Retailer 3$4,498 CAD
MOH London$7,302 CAD

17 data points across 10 retailers

11 retailers$1,383 CAD to $7,302 CAD

A
Cheapest Retailer
-
$1,383 CAD
$990 USD
B+
Retailer 2
-
$2,193 CAD
$1,570 USD
View
B+
Retailer 3
-
$2,386 CAD
$1,708 USD
View
B+
Retailer 4
-
$2,454 CAD
$1,757 USD
View
Final sale: no returns
Retailer 5
-
$2,544 CAD
$1,821 USD
View
Price last confirmed 18 days ago
B+
Retailer 6
-
$2,544 CAD
$1,821 USD
View
B+
Retailer 7
-
$2,780 CAD
$1,990 USD
View
B
Retailer 8
-
$4,004 CAD
$2,866 USD
View
B
Retailer 9
-
$4,498 CAD
$3,220 USD
View
B
Retailer 10
-
$4,768 CAD
$3,413 USD
View
Most Expensive
B
MOH London
LG478113784 · Oct 29
$7,302 CAD
£4,116 GBP
View
10 more retailers have this diamond
Prices start from $1,383 CADSave up to $5,919 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
1.73ct Round
$1,383 CAD