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Round|Lab Grown|IGI

0.90ct F SI1 Round Lab Grown Diamond

EX • F/SI1 • IGI LG519258722

Shape and cutting style on the report: Round brilliant

Certificate IGI LG519258722

Diamond specifications and retailer prices

From £112 GBP
$150 USD
As of November 1, 2026
Save £538 GBP (83%) vs most expensive(unlock to see where)
12 retailers carry this diamond
Most expensive: £650 GBP at MOH London · As of November 1, 2026
View at MOH London

About this 0.9ct lab-grown round diamond

This 0.9ct lab-grown round sits in the just-under-one-carat band, graded F colour (colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG519258722 or 519258722. Listed at 12 retailers as of November 1, 2026, with prices from £112 to £650, a £538 spread on the same certified stone. MOH London lists it at £650. 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

0.90
Carat
F
Colour
SI1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle36.5°
Pavilion angle40.6°
OriginLab Grown
Grading LabIGI
CertificateIGI LG519258722
Dimensions6.19 × 6.16 × 3.81 mm
L/W Ratio1.00
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
6.19 mm6.16 mm0.90 ctF / SI1
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG519258722
Side View
Table 59.0%Crown 36.5°Girdle: MED-STKPavilion 40.6°Culet: NoneDepth 61.7%

Caratlytics Score

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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 1
Current: £650 GBP|Low: £98 GBP|High: £658 GBP|Avg: £348 GBP|-1.2%
MOH London
Retailer 2
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Retailer 11
Retailer 12
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November 2, 2026
Retailer 11£112 GBP
Retailer 13£125 GBP
Retailer 14£130 GBP
Retailer 15£229 GBP
Retailer 2£237 GBP
Retailer 12£255 GBP
Retailer 5£264 GBP
Retailer 7£298 GBP
Retailer 4£302 GBP
Retailer 9£336 GBP
Retailer 6£372 GBP
Retailer 10£472 GBP
Retailer 16£564 GBP
Retailer 3£566 GBP
Retailer 8£609 GBP
MOH London£650 GBP

21 data points across 16 retailers

12 retailers£112 GBP to £650 GBP

A
Cheapest Retailer
-
£112 GBP
$150 USD
A
Retailer 2
-
£125 GBP
$168 USD
View
Final sale: no returns
A
Retailer 3
-
£130 GBP
$174 USD
View
A
Retailer 4
-
£229 GBP
HK$2,400 HKD
View
A
Retailer 5
-
£237 GBP
€302 EUR
View
A
Retailer 6
-
£255 GBP
$342 USD
View
B+
Retailer 7
-
£336 GBP
$450 USD
View
B+
Retailer 8
-
£388 GBP
View
B+
Retailer 9
-
£472 GBP
$633 USD
View
B
Retailer 10
-
£564 GBP
SGD 1,021 SGD
View
Most Expensive
B
MOH London
LG519258722 · Nov 1
£650 GBP
View
10 more retailers have this diamond
Prices start from £112 GBPSave up to £538 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
0.90ct Round
£112 GBP