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Round|Lab Grown|IGI

0.73ct F SI1 Round Lab Grown Diamond

EX • F/SI1 • IGI LG459192030

Shape and cutting style on the report: Round brilliant

Certificate IGI LG459192030

Diamond specifications and retailer prices

From £291 GBP
$390 USD
As of October 31, 2026
Save £2,124 GBP (88%) vs most expensive(unlock to see where)
12 retailers carry this diamond
Most expensive: £2,415 GBP at MOH London · As of November 1, 2026
View at MOH London

About this 0.73ct lab-grown round diamond

This 0.73ct lab-grown round sits in the half to three-quarter carat band, graded F colour (colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG459192030 or 459192030. Listed at 12 retailers as of October 31, 2026, with prices from £291 to £2,415, a £2,124 spread on the same certified stone. MOH London lists it at £2,415. 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
F
Colour
SI1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishVery Good
SymmetryVery Good
FluorescenceNone
Crown angle33°
Pavilion angle40.9°
OriginLab Grown
Grading LabIGI
CertificateIGI LG459192030
Dimensions5.77 × 5.79 × 3.54 mm
L/W Ratio1.00
Girdle conditionFaceted
Culet sizePointed
Cert comments
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Top View
5.77 mm5.79 mm0.73 ctF / SI1
OriginLab Grown
CutExcellent
PolishVery Good
SymmetryVery Good
FluorescenceNone
CertificateIGI LG459192030
Side View
Table 58.0%Crown 33°Girdle: MED-STKPavilion 40.9°Culet: NoneDepth 61.2%

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 31
Current: £2,415 GBP|Low: £291 GBP|High: £2,444 GBP|Avg: £860 GBP
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
November 1, 2026
Retailer 4£291 GBP
Retailer 6£449 GBP
Retailer 9£502 GBP
Retailer 10£502 GBP
Retailer 7£556 GBP
Retailer 8£854 GBP
Retailer 2£868 GBP
Retailer 3£924 GBP
Retailer 5£1,380 GBP
MOH London£2,415 GBP

41 data points across 10 retailers

12 retailers£291 GBP to £2,415 GBP

A
Cheapest Retailer
-
£291 GBP
$390 USD
B+
Retailer 2
-
£449 GBP
$601 USD
View
B+
Retailer 3
-
£502 GBP
$673 USD
View
B+
Retailer 4
-
£502 GBP
$673 USD
View
Final sale: no returns
Retailer 5
-
£556 GBP
$745 USD
View
Price last confirmed 16 days ago
B
Retailer 6
-
£556 GBP
$745 USD
View
B
Retailer 7
-
£854 GBP
$1,144 USD
View
B
Retailer 8
-
£868 GBP
View
B
Retailer 9
-
£924 GBP
€1,179 EUR
View
B
Retailer 10
-
£1,380 GBP
$1,849 USD
View
B
Retailer 11
-
£1,463 GBP
$1,960 USD
View
Most Expensive
B
MOH London
LG459192030 · Nov 1
£2,415 GBP
View
11 more retailers have this diamond
Prices start from £291 GBPSave up to £2,124 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 Round
£291 GBP