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Round|Lab Grown|IGI

0.90ct I SI1 Round Lab Grown Diamond

ID • I/SI1 • IGI LG425067080

Shape and cutting style on the report: Round brilliant

Certificate IGI LG425067080

Diamond specifications and retailer prices

From £396 GBP
$530 USD
As of October 30, 2026
Save £2,090 GBP (84%) vs most expensive(unlock to see where)
11 retailers carry this diamond
Most expensive: £2,485 GBP at MOH London · As of October 29, 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 I colour (near-colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG425067080 or 425067080. Listed at 11 retailers as of October 29, 2026, with prices from £396 to £2,485, a £2,090 spread on the same certified stone. MOH London lists it at £2,485. 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
I
Colour
SI1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle35.9°
Pavilion angle40°
OriginLab Grown
Grading LabIGI
CertificateIGI LG425067080
Dimensions6.17 × 6.21 × 3.75 mm
L/W Ratio1.01
Girdle conditionFaceted
Culet sizeNone
Cert comments
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Top View
6.17 mm6.21 mm0.90 ctI / SI1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG425067080
Side View
Table 59.0%Crown 35.9°GirdlePavilion 40°Culet: NoneDepth 60.6%

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: £2,485 GBP|Low: £396 GBP|High: £2,502 GBP|Avg: £1,007 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
October 30, 2026
Retailer 2£396 GBP
Retailer 6£569 GBP
Retailer 10£619 GBP
Retailer 9£637 GBP
Retailer 7£660 GBP
Retailer 11£791 GBP
Retailer 3£1,022 GBP
Retailer 8£1,068 GBP
Retailer 4£1,139 GBP
Retailer 5£1,569 GBP
MOH London£2,485 GBP

20 data points across 11 retailers

11 retailers£396 GBP to £2,485 GBP

A
Cheapest Retailer
-
£396 GBP
$530 USD
B+
Retailer 2
-
£569 GBP
$762 USD
View
B+
Retailer 3
-
£619 GBP
$829 USD
View
B+
Retailer 4
-
£637 GBP
$853 USD
View
Final sale: no returns
Retailer 5
-
£660 GBP
$884 USD
View
Price last confirmed 18 days ago
B+
Retailer 6
-
£660 GBP
$884 USD
View
B
Retailer 7
-
£1,068 GBP
$1,431 USD
View
B
Retailer 8
-
£1,139 GBP
€1,454 EUR
View
B
Retailer 9
-
£1,569 GBP
$2,102 USD
View
B
Retailer 10
-
£1,855 GBP
$2,485 USD
View
Most Expensive
B
MOH London
LG425067080 · Oct 29
£2,485 GBP
View
10 more retailers have this diamond
Prices start from £396 GBPSave up to £2,090 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
£396 GBP