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Radiant|Lab Grown|IGI

1.73ct E SI1 Radiant Lab Grown Diamond

VG • E/SI1 • IGI LG530214397

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

Certificate IGI LG530214397

Diamond specifications and retailer prices

From $304 CAD
$217 USD
As of October 27, 2026
Save $979 CAD (76%) vs most expensive(unlock to see where)
16 retailers carry this diamond
Most expensive: $1,631 CAD at Rare Carat · As of October 18, 2026
View at Rare Carat

About this 1.73ct lab-grown radiant diamond

This 1.73ct 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 LG530214397 or 530214397. Listed at 16 retailers as of October 27, 2026, with a 322% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. 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

1.73
Carat
E
Color
SI1
Clarity
Very Good
Cut

Specifications

CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle43.6°
Pavilion angle36.2°
OriginLab Grown
Grading LabIGI
CertificateIGI LG530214397
Dimensions8.32 × 5.98 × 4.13 mm
L/W Ratio1.39
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
8.32 mm5.98 mm1.73 ctE / SI1
OriginLab Grown
CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG530214397
Side View
Table 65.5%Crown 43.6°Girdle: MediumPavilion 36.2°Culet: NoneDepth 69.1%

Caratlytics Score

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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 27
Current: $1,631 CAD|Low: $304 CAD|High: $1,659 CAD|Avg: $830 CAD|-1.7%
Rare Carat
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
Retailer 13
Retailer 14
Retailer 15
October 29, 2026
Retailer 15$304 CAD
Retailer 3$340 CAD
Retailer 13$351 CAD
Retailer 8$376 CAD
Retailer 9$484 CAD
Retailer 12$507 CAD
Retailer 2$695 CAD
Retailer 5$701 CAD
Retailer 10$745 CAD
Retailer 14$806 CAD
Retailer 11$1,208 CAD
Retailer 7$1,257 CAD
Retailer 4$1,282 CAD
Retailer 6$1,570 CAD
Rare Carat$1,631 CAD

41 data points across 15 retailers

16 retailers$304 CAD to $1,282 CAD

A
Cheapest Retailer
-
$304 CAD
$217 USD
A
Retailer 2
-
$340 CAD
$243 USD
View
Final sale: no returns
A
Retailer 3
-
$351 CAD
$251 USD
View
A
Retailer 4
-
$376 CAD
$269 USD
View
A
Retailer 5
-
$389 CAD
$278 USD
View
A
Retailer 6
-
$484 CAD
£272 GBP
View
B+
Retailer 7
-
$507 CAD
$362 USD
View
A
Retailer 8
-
$695 CAD
£391 GBP
View
B+
Retailer 9
-
$701 CAD
€477 EUR
View
B+
Retailer 10
-
$745 CAD
$532 USD
View
B+
Retailer 11
-
$806 CAD
$576 USD
View
B+
Retailer 12
-
$1,208 CAD
$863 USD
View
B
Retailer 13
-
$1,257 CAD
$898 USD
View
B
Retailer 14
-
$1,282 CAD
$916 USD
View
B
Retailer 15
-
$1,570 CAD
£883 GBP
View
Price last confirmed 8 days ago
Most Expensive
B
Rare Carat
KG108-45A · Oct 18
$1,631 CAD
$1,165 USD
View
Price last confirmed 10 days ago
15 more retailers have this diamond
Prices start from $304 CADSave up to $979 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 Radiant
$304 CAD