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Oval|Lab Grown|IGI

0.90ct E SI1 Oval Lab Grown Diamond

ID • E/SI1 • IGI LG499190450

Shape and cutting style on the report: Oval brilliant

Certificate IGI LG499190450

Diamond specifications and retailer prices

From £458 GBP
$610 USD
As of October 29, 2026
Save £905 GBP (66%) vs most expensive(unlock to see where)
11 retailers carry this diamond
Most expensive: £1,838 GBP at Friendly Diamonds · As of October 26, 2026
View at Friendly Diamonds

About this 0.9ct lab-grown oval diamond

This 0.9ct lab-grown oval sits in the just-under-one-carat band, graded E colour (colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG499190450 or 499190450. Listed at 11 retailers as of October 28, 2026, with a 198% 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
E
Colour
SI1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishVery Good
SymmetryExcellent
FluorescenceNone
Crown angle33.2°
Pavilion angle39.4°
OriginLab Grown
Grading LabIGI
CertificateIGI LG499190450
Dimensions8.13 × 5.42 × 3.16 mm
L/W Ratio1.50
Girdle conditionFaceted
Culet sizePointed
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process and may include post-growth treatment Type IIa
Top View
8.13 mm5.42 mm0.90 ctE / SI1
OriginLab Grown
CutIdeal
PolishVery Good
SymmetryExcellent
FluorescenceNone
CertificateIGI LG499190450
Side View
Table 59.0%Crown 33.2°Girdle: THN-MEDPavilion 39.4°Culet: NoneDepth 58.3%

Caratlytics Score

How it works →
B+
Very Good
Strong quality and value balance
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See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Oct 29
Current: £1,838 GBP|Low: £458 GBP|High: £2,932 GBP|Avg: £1,199 GBP
Friendly Diamonds
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
October 29, 2026
Retailer 5£458 GBP
Retailer 8£545 GBP
Retailer 4£735 GBP
Retailer 7£823 GBP
Retailer 2£1,316 GBP
Retailer 6£1,363 GBP
Friendly Diamonds£1,838 GBP
Retailer 3£2,896 GBP

40 data points across 8 retailers

11 retailers£458 GBP to £1,363 GBP

B+
Cheapest Retailer
-
£458 GBP
$610 USD
B
Retailer 2
-
£735 GBP
$979 USD
View
B
Retailer 3
-
£800 GBP
$1,065 USD
View
B
Retailer 4
-
£823 GBP
$1,096 USD
View
Final sale: no returns
B
Retailer 5
-
£853 GBP
$1,136 USD
View
B
Retailer 6
-
£853 GBP
$1,136 USD
View
Price last confirmed 17 days ago
B
Retailer 7
-
£1,316 GBP
View
B
Retailer 8
-
£1,363 GBP
$1,815 USD
View
B
Retailer 9
-
£1,599 GBP
$2,129 USD
View
Price under review
Most Expensive
B
Friendly Diamonds
2234444 · Oct 26
£1,838 GBP
$2,448 USD
View
Price under review
9 more retailers have this diamond
Prices start from £458 GBPSave up to £905 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.

B+
0.90ct Oval
£458 GBP