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Radiant|Lab Grown|IGI

1.71ct E SI1 Radiant Lab Grown Diamond

VG • E/SI1 • IGI LG519238354

Shape and cutting style on the report: Cut cornered rectangular modified brilliant

Certificate IGI LG519238354

Diamond specifications and retailer prices

From $761 CAD
$544 USD
As of October 23, 2026
Save $3,186 CAD (81%) vs most expensive(unlock to see where)
12 retailers carry this diamond
Most expensive: $3,948 CAD at MOH London · As of October 26, 2026
View at MOH London

About this 1.71ct lab-grown radiant diamond

This 1.71ct lab-grown radiant sits in the one-and-a-half to two carat band, graded E colour (colourless) and SI1 clarity (slightly-included), with a very-good cut grade and certified by IGI LG519238354 or 519238354. Listed at 12 retailers as of October 23, 2026, with prices from $761 to $3,948, a $3,186 spread on the same certified stone. MOH London lists it at $3,948. Cut grade matters more than carat or clarity for visible brilliance. If you can shift budget toward an Excellent or Ideal cut, do it before chasing higher colour or clarity.

The 4Cs

1.71
Carat
E
Color
SI1
Clarity
Very Good
Cut

Specifications

CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle42.6°
Pavilion angle30°
OriginLab Grown
Grading LabIGI
CertificateIGI LG519238354
Dimensions7.69 × 5.92 × 4.07 mm
L/W Ratio1.30
Culet sizePointed
Cert comments
As Grown - No indication of post-growth treatment This Laboratory Grown Diamond was created by High Pressure High Temperature (HPHT) growth process Type II
Top View
7.69 mm5.92 mm1.71 ctE / SI1
OriginLab Grown
CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG519238354
Side View
Table 68.5%Crown 42.6°Girdle: MediumPavilion 30°Culet: NoneDepth 68.8%

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 23
Current: $3,948 CAD|Low: $609 CAD|High: $3,990 CAD|Avg: $1,748 CAD|+0.1%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
October 29, 2026
Retailer 10$854 CAD
Retailer 7$945 CAD
Retailer 11$949 CAD
Retailer 6$1,134 CAD
Retailer 4$1,371 CAD
Retailer 9$1,458 CAD
Retailer 2$1,467 CAD
Retailer 5$2,438 CAD
Retailer 8$2,484 CAD
Retailer 3$2,531 CAD
MOH London$3,948 CAD

41 data points across 11 retailers

12 retailers$761 CAD to $3,948 CAD

A
Cheapest Retailer
-
$761 CAD
$544 USD
B+
Retailer 2
-
$854 CAD
$610 USD
View
B+
Retailer 3
-
$854 CAD
$610 USD
View
Final sale: no returns
B+
Retailer 4
-
$945 CAD
$675 USD
View
B+
Retailer 5
-
$949 CAD
$678 USD
View
B+
Retailer 6
-
$1,134 CAD
$810 USD
View
B
Retailer 7
-
$1,371 CAD
€933 EUR
View
B
Retailer 8
-
$1,458 CAD
$1,042 USD
View
B
Retailer 9
-
$1,467 CAD
£825 GBP
View
B
Retailer 10
-
$2,438 CAD
$1,742 USD
View
B
Retailer 11
-
$2,484 CAD
$1,775 USD
View
Most Expensive
B
MOH London
LG519238354 · Oct 26
$3,948 CAD
£2,221 GBP
View
11 more retailers have this diamond
Prices start from $761 CADSave up to $3,186 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 Radiant
$761 CAD