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Round|Lab Grown|IGI

1.71ct I SI1 Round Lab Grown Diamond

EX • I/SI1 • IGI LG480150359

Shape and cutting style on the report: Round brilliant

Certificate IGI LG480150359

Diamond specifications and retailer prices

From $1,327 CAD
$950 USD
As of October 30, 2026
Save $5,863 CAD (82%) vs most expensive(unlock to see where)
11 retailers carry this diamond
Most expensive: $7,190 CAD at MOH London · As of October 27, 2026
View at MOH London

About this 1.71ct lab-grown round diamond

This 1.71ct 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 LG480150359 or 480150359. Listed at 11 retailers as of October 27, 2026, with prices from $1,327 to $7,190, a $5,863 spread on the same certified stone. MOH London lists it at $7,190. 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

1.71
Carat
I
Color
SI1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle32.1°
Pavilion angle40.4°
OriginLab Grown
Grading LabIGI
CertificateIGI LG480150359
Dimensions7.79 × 7.85 × 4.59 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
7.79 mm7.85 mm1.71 ctI / SI1
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG480150359
Side View
Table 59.0%Crown 32.1°Girdle: UNDPavilion 40.4°Culet: NoneDepth 58.7%

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: $7,190 CAD|Low: $1,327 CAD|High: $7,277 CAD|Avg: $3,919 CAD|+0.1%
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$1,327 CAD
Retailer 4$2,168 CAD
Retailer 7$2,426 CAD
Retailer 5$2,514 CAD
Retailer 8$2,752 CAD
Retailer 9$3,400 CAD
Retailer 6$3,957 CAD
Retailer 3$4,446 CAD
MOH London$7,190 CAD
Retailer 10$7,197 CAD

16 data points across 10 retailers

11 retailers$1,327 CAD to $7,190 CAD

A
Cheapest Retailer
-
$1,327 CAD
$950 USD
B+
Retailer 2
-
$2,168 CAD
$1,552 USD
View
B+
Retailer 3
-
$2,358 CAD
$1,688 USD
View
B+
Retailer 4
-
$2,426 CAD
$1,737 USD
View
Final sale: no returns
Retailer 5
-
$2,514 CAD
$1,800 USD
View
Price last confirmed 17 days ago
B+
Retailer 6
-
$2,514 CAD
$1,800 USD
View
B
Retailer 7
-
$2,752 CAD
$1,970 USD
View
B
Retailer 8
-
$3,957 CAD
$2,833 USD
View
B
Retailer 9
-
$4,446 CAD
$3,183 USD
View
B
Retailer 10
-
$4,713 CAD
$3,374 USD
View
Most Expensive
B
MOH London
LG480150359 · Oct 27
$7,190 CAD
£4,053 GBP
View
10 more retailers have this diamond
Prices start from $1,327 CADSave up to $5,863 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
1.71ct Round
$1,327 CAD