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Round|Lab Grown|IGI

0.73ct F SI1 Round Lab Grown Diamond

ID • F/SI1 • IGI LG643438600

Shape and cutting style on the report: Round brilliant

Certificate IGI LG643438600

Diamond specifications and retailer prices

From £358 GBP
A$738 AUD
As of November 2, 2026
5 retailers carry this diamond
Most expensive: £358 GBP at GemTrove
View at GemTrove

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 LG643438600 or 643438600. Listed at 5 retailers as of November 2, 2026. 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
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle33.8°
Pavilion angle41.1°
OriginLab Grown
Grading LabIGI
CertificateIGI LG643438600
Dimensions10.37 × 7.13 × 4.39 mm
L/W Ratio1.45
Girdle conditionFaceted
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
10.37 mm7.13 mm0.73 ctF / SI1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG643438600
Side View
Table 58.0%Crown 33.8°Girdle: MediumPavilion 41.1°Culet: NoneDepth 61.1%

Caratlytics Score

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B+
Very Good
Strong quality and value balance
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Price History

Last verified: Nov 2
Current: £358 GBP|Low: £101 GBP|High: £358 GBP|Avg: £215 GBP
GemTrove
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
Retailer 13
October 31, 2026
Retailer 12£101 GBP
Retailer 13£113 GBP
Retailer 11£114 GBP
Retailer 6£172 GBP
Retailer 2£188 GBP
Retailer 4£192 GBP
Retailer 7£204 GBP
Retailer 9£231 GBP
Retailer 5£239 GBP
Retailer 3£269 GBP
Retailer 8£285 GBP
Retailer 10£346 GBP
GemTrove£358 GBP

10 data points across 13 retailers

5 retailers

Retailer 1
-
£113 GBP
$152 USD
Price last confirmed 43 days ago
Retailer 2
-
£172 GBP
$230 USD
View
Price last confirmed 38 days ago
Retailer 3
-
£231 GBP
$310 USD
View
Price last confirmed 37 days ago
Retailer 4
-
£346 GBP
$463 USD
View
Price last confirmed 41 days ago
Most Expensive
B+
GemTrove
GT-L-01175522-98 · Nov 2
£358 GBP
A$738 AUD
View
4 more retailers have this diamond

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+
0.73ct Round
£358 GBP