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Radiant|Lab Grown|IGI

1.73ct G SI1 Radiant Lab Grown Diamond

ID • G/SI1 • IGI LG532236483

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

Certificate IGI LG532236483

Diamond specifications and retailer prices

From £836 GBP
$1,120 USD
As of October 30, 2026
Save £1,752 GBP (68%) vs most expensive(unlock to see where)
11 retailers carry this diamond
Most expensive: £2,885 GBP at NZ Jewellers · As of October 28, 2026
View at NZ Jewellers

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 G colour (near-colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG532236483 or 532236483. Listed at 11 retailers as of October 30, 2026, with a 210% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. 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
G
Colour
SI1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle45.5°
Pavilion angle31.1°
OriginLab Grown
Grading LabIGI
CertificateIGI LG532236483
Dimensions8.15 × 5.81 × 4.02 mm
L/W Ratio1.40
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
8.15 mm5.81 mm1.73 ctG / SI1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG532236483
Side View
Table 67.0%Crown 45.5°Girdle: STK-THKPavilion 31.1°Culet: NoneDepth 69.2%

Caratlytics Score

How it works →
B+
Very Good
Strong quality and value balance
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Oct 30
Current: £2,885 GBP|Low: £836 GBP|High: £4,454 GBP|Avg: £2,177 GBP
NZ Jewellers
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
October 31, 2026
Retailer 3£836 GBP
Retailer 6£1,326 GBP
Retailer 9£1,443 GBP
Retailer 7£1,539 GBP
Retailer 10£1,664 GBP
Retailer 2£2,182 GBP
Retailer 8£2,414 GBP
Retailer 5£2,588 GBP
NZ Jewellers£2,885 GBP
Retailer 4£4,418 GBP

44 data points across 10 retailers

11 retailers£836 GBP to £2,588 GBP

B+
Cheapest Retailer
-
£836 GBP
$1,120 USD
B
Retailer 2
-
£1,326 GBP
$1,777 USD
View
B
Retailer 3
-
£1,443 GBP
$1,934 USD
View
B
Retailer 4
-
£1,539 GBP
$2,062 USD
View
Retailer 5
-
£1,539 GBP
$2,062 USD
View
Price last confirmed 18 days ago
B
Retailer 6
-
£1,664 GBP
$2,230 USD
View
B
Retailer 7
-
£2,182 GBP
View
B
Retailer 8
-
£2,414 GBP
$3,235 USD
View
B
Retailer 9
-
£2,588 GBP
$3,468 USD
View
Most Expensive
NZ Jewellers
bfb3266b-f0ba-4610-b6f9-4e4935011458 · Oct 28
£2,885 GBP
$3,865 USD
View
Price under review
9 more retailers have this diamond
Prices start from £836 GBPSave up to £1,752 GBP

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.

B+
1.73ct Radiant
£836 GBP