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Oval|Lab Grown|IGI

0.91ct E SI1 Oval Lab Grown Diamond

ID • E/SI1 • IGI LG499115883

Shape and cutting style on the report: Oval brilliant

Certificate IGI LG499115883

Diamond specifications and retailer prices

From £413 GBP
$550 USD
As of October 29, 2026
Save £965 GBP (70%) vs most expensive(unlock to see where)
11 retailers carry this diamond
Most expensive: £1,858 GBP at Friendly Diamonds · As of October 26, 2026
View at Friendly Diamonds

About this 0.91ct lab-grown oval diamond

This 0.91ct 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 LG499115883 or 499115883. Listed at 11 retailers as of October 28, 2026, with a 234% 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

0.91
Carat
E
Colour
SI1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle36.5°
Pavilion angle40.7°
OriginLab Grown
Grading LabIGI
CertificateIGI LG499115883
Dimensions7.63 × 5.52 × 3.49 mm
L/W Ratio1.38
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
7.63 mm5.52 mm0.91 ctE / SI1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG499115883
Side View
Table 57.5%Crown 36.5°Girdle: THN-MEDPavilion 40.7°Culet: NoneDepth 63.2%

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: £1,858 GBP|Low: £413 GBP|High: £2,963 GBP|Avg: £1,183 GBP
Friendly Diamonds
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
October 29, 2026
Retailer 5£413 GBP
Retailer 8£551 GBP
Retailer 4£743 GBP
Retailer 7£831 GBP
Retailer 2£1,326 GBP
Retailer 6£1,378 GBP
Friendly Diamonds£1,858 GBP
Retailer 3£2,939 GBP

39 data points across 8 retailers

11 retailers£413 GBP to £1,378 GBP

B+
Cheapest Retailer
-
£413 GBP
$550 USD
B
Retailer 2
-
£743 GBP
$990 USD
View
B
Retailer 3
-
£809 GBP
$1,077 USD
View
B
Retailer 4
-
£831 GBP
$1,107 USD
View
Final sale: no returns
B
Retailer 5
-
£862 GBP
$1,148 USD
View
Price last confirmed 17 days ago
B
Retailer 6
-
£862 GBP
$1,148 USD
View
B
Retailer 7
-
£1,326 GBP
View
B
Retailer 8
-
£1,378 GBP
$1,835 USD
View
B
Retailer 9
-
£1,616 GBP
$2,152 USD
View
Price under review
Most Expensive
B
Friendly Diamonds
1590909 · Oct 26
£1,858 GBP
$2,474 USD
View
Price under review
9 more retailers have this diamond
Prices start from £413 GBPSave up to £965 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+
0.91ct Oval
£413 GBP