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Radiant|Lab Grown|IGI

1.73ct F SI1 Radiant Lab Grown Diamond

ID • F/SI1 • IGI LG522253049

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

Certificate IGI LG522253049

Diamond specifications and retailer prices

From $329 USD
As of November 2, 2026
Save $1,305 USD (80%) vs most expensive(unlock to see where)
18 retailers carry this diamond
Most expensive: $1,634 USD at MOH London · As of November 1, 2026
View at MOH London

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 F colour (colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG522253049 or 522253049. Listed at 18 retailers as of November 1, 2026, with prices from $329 to $1,634, a $1,305 spread on the same certified stone. MOH London lists it at $1,634. 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
F
Color
SI1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle45.5°
Pavilion angle31.9°
OriginLab Grown
Grading LabIGI
CertificateIGI LG522253049
Dimensions7.86 × 6.12 × 4.12 mm
L/W Ratio1.28
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
7.86 mm6.12 mm1.73 ctF / SI1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG522253049
Side View
Table 66.5%Crown 45.5°Girdle: MediumPavilion 31.9°Culet: NoneDepth 67.3%

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: Nov 2
Current: $1,634 USD|Low: $316 USD|High: $1,654 USD|Avg: $743 USD|-1.1%
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
Retailer 14
Retailer 15
November 2, 2026
Retailer 12$329 USD
Retailer 7$368 USD
Retailer 3$381 USD
Retailer 4$408 USD
Retailer 13$408 USD
Retailer 2$522 USD
Retailer 10$560 USD
Retailer 5$627 USD
Retailer 15$659 USD
Retailer 6$673 USD
Retailer 8$730 USD
Retailer 11$1,196 USD
Retailer 14$1,311 USD
Retailer 9$1,540 USD
MOH London$1,634 USD

41 data points across 15 retailers

18 retailers$329 USD to $1,634 USD

A
Cheapest Retailer
-
$329 USD
A
Retailer 2
-
$368 USD
View
Final sale: no returns
A
Retailer 3
-
$381 USD
View
A
Retailer 4
-
$408 USD
View
Retailer 5
-
$408 USD
View
Price last confirmed 8 days ago
A
Retailer 6
-
$522 USD
£411 GBP
View
A
Retailer 7
-
$560 USD
View
B+
Retailer 8
-
$627 USD
View
B+
Retailer 9
-
$659 USD
View
B+
Retailer 10
-
$673 USD
View
B+
Retailer 11
-
$730 USD
£574 GBP
View
B+
Retailer 12
-
$845 USD
HK$6,600 HKD
View
B
Retailer 13
-
$1,196 USD
View
B
Retailer 14
-
$1,311 USD
View
B
Retailer 15
-
$1,355 USD
View
B
Retailer 16
-
$1,540 USD
View
B
Retailer 17
-
$1,605 USD
View
Most Expensive
B
MOH London
LG522253049 · Nov 1
$1,634 USD
£1,287 GBP
View
17 more retailers have this diamond
Prices start from $329 USDSave up to $1,305 USD

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
$329 USD