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Princess|Lab Grown|IGI

0.73ct I SI1 Princess Lab Grown Diamond

ID • I/SI1 • IGI LG445037932

Shape and cutting style on the report: Princess cut

Certificate IGI LG445037932

Diamond specifications and retailer prices

From £328 GBP
$440 USD
As of October 30, 2026
Save £1,067 GBP (76%) vs most expensive(unlock to see where)
11 retailers carry this diamond
Most expensive: £1,603 GBP at MOH London · As of October 21, 2026
View at MOH London

About this 0.73ct lab-grown princess diamond

This 0.73ct lab-grown princess sits in the half to three-quarter carat band, graded I colour (near-colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG445037932 or 445037932. Listed at 11 retailers as of October 28, 2026, with a 325% 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

0.73
Carat
I
Colour
SI1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryVery Good
FluorescenceNone
Crown angle43.1°
Pavilion angle38.6°
OriginLab Grown
Grading LabIGI
CertificateIGI LG445037932
Dimensions4.98 × 4.83 × 3.47 mm
L/W Ratio1.03
Culet sizePointed
Top View
4.98 mm4.83 mm0.73 ctI / SI1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateIGI LG445037932
Side View
Table 70.5%Crown 43.1°Girdle: MediumPavilion 38.6°Culet: NoneDepth 71.8%

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: £1,603 GBP|Low: £328 GBP|High: £1,743 GBP|Avg: £756 GBP|+0.5%
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
October 30, 2026
Retailer 2£328 GBP
Retailer 10£350 GBP
Retailer 3£392 GBP
Retailer 15£392 GBP
Retailer 11£434 GBP
Retailer 14£434 GBP
Retailer 7£528 GBP
Retailer 4£541 GBP
Retailer 12£678 GBP
Retailer 8£734 GBP
Retailer 5£739 GBP
Retailer 9£1,167 GBP
Retailer 13£1,395 GBP
MOH London£1,603 GBP
Retailer 6£1,743 GBP

22 data points across 15 retailers

11 retailers£328 GBP to £1,395 GBP

A
Cheapest Retailer
-
£328 GBP
$440 USD
A
Retailer 2
-
£350 GBP
$469 USD
View
A
Retailer 3
-
£392 GBP
$525 USD
View
Final sale: no returns
A
Retailer 4
-
£392 GBP
$525 USD
View
Retailer 5
-
£434 GBP
$581 USD
View
Price last confirmed 14 days ago
B+
Retailer 6
-
£434 GBP
$581 USD
View
B
Retailer 7
-
£678 GBP
$908 USD
View
B
Retailer 8
-
£734 GBP
€937 EUR
View
B
Retailer 9
-
£1,167 GBP
$1,563 USD
View
B
Retailer 10
-
£1,395 GBP
$1,869 USD
View
Most Expensive
MOH London
LG445037932 · Oct 21
£1,603 GBP
View
Price last confirmed 9 days ago
10 more retailers have this diamond
Prices start from £328 GBPSave up to £1,067 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.

A
0.73ct Princess
£328 GBP