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Round|Lab Grown|IGI

0.90ct I SI2 Round Lab Grown Diamond

EX • I/SI2 • IGI LG445038921

Shape and cutting style on the report: Round brilliant

Certificate IGI LG445038921

Diamond specifications and retailer prices

From £224 GBP
$300 USD
As of October 29, 2026
Save £668 GBP (75%) vs most expensive(unlock to see where)
11 retailers carry this diamond
Most expensive: £1,118 GBP at MOH London · As of October 21, 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 SI2 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG445038921 or 445038921. Listed at 11 retailers as of October 27, 2026, with a 298% 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

0.90
Carat
I
Colour
SI2
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle36.3°
Pavilion angle40.8°
OriginLab Grown
Grading LabIGI
CertificateIGI LG445038921
Dimensions6.12 × 6.10 × 3.88 mm
L/W Ratio1.00
Girdle conditionFaceted
Culet sizePointed
Cert comments
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Top View
6.12 mm6.10 mm0.90 ctI / SI2
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG445038921
Side View
Table 56.0%Crown 36.3°Girdle: MED-STKPavilion 40.8°Culet: NoneDepth 63.5%

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 29
Current: £1,118 GBP|Low: £224 GBP|High: £1,265 GBP|Avg: £596 GBP|+0.5%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
October 30, 2026
Retailer 5£224 GBP
Retailer 8£250 GBP
Retailer 6£278 GBP
Retailer 3£356 GBP
Retailer 2£388 GBP
Retailer 7£454 GBP
Retailer 4£852 GBP
MOH London£1,118 GBP
Retailer 9£1,265 GBP

34 data points across 9 retailers

11 retailers£224 GBP to £892 GBP

A
Cheapest Retailer
-
£224 GBP
$300 USD
A
Retailer 2
-
£250 GBP
$335 USD
View
Final sale: no returns
A
Retailer 3
-
£260 GBP
$348 USD
View
A
Retailer 4
-
£278 GBP
$372 USD
View
A
Retailer 5
-
£278 GBP
$372 USD
View
A
Retailer 6
-
£356 GBP
View
A
Retailer 7
-
£388 GBP
$520 USD
View
B+
Retailer 8
-
£454 GBP
$608 USD
View
B+
Retailer 9
-
£852 GBP
$1,142 USD
View
B
Retailer 10
-
£892 GBP
$1,195 USD
View
Most Expensive
MOH London
LG445038921 · Oct 21
£1,118 GBP
View
Price last confirmed 9 days ago
10 more retailers have this diamond
Prices start from £224 GBPSave up to £668 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
£224 GBP