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Oval|Lab Grown|IGI

1.58ct E SI1 Oval Lab Grown Diamond

ID • E/SI1 • IGI LG618486544

Shape and cutting style on the report: Oval brilliant

Certificate IGI LG618486544

Diamond specifications and retailer prices

From £141 GBP
$188 USD
As of October 29, 2026
Save £680 GBP (83%) vs most expensive(unlock to see where)
13 retailers carry this diamond
Most expensive: £821 GBP at MOH London · As of October 29, 2026
View at MOH London

About this 1.58ct lab-grown oval diamond

This 1.58ct lab-grown oval sits in the one-and-a-half to two carat band, graded E colour (colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG618486544 or 618486544. Listed at 13 retailers as of October 29, 2026, with prices from £141 to £821, a £680 spread on the same certified stone. MOH London lists it at £821. 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

1.58
Carat
E
Colour
SI1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle34.9°
Pavilion angle40.6°
OriginLab Grown
Grading LabIGI
CertificateIGI LG618486544
Dimensions9.30 × 6.64 × 4.10 mm
L/W Ratio1.40
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
9.30 mm6.64 mm1.58 ctE / SI1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG618486544
Side View
Table 60.0%Crown 34.9°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: Oct 29
Current: £821 GBP|Low: £135 GBP|High: £849 GBP|Avg: £383 GBP|-0.6%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
Retailer 13
Retailer 14
October 30, 2026
Retailer 5£141 GBP
Retailer 7£164 GBP
Retailer 12£175 GBP
Retailer 14£175 GBP
Retailer 11£225 GBP
Retailer 3£306 GBP
Retailer 2£317 GBP
Retailer 9£328 GBP
Retailer 10£364 GBP
Retailer 13£427 GBP
Retailer 4£562 GBP
Retailer 8£564 GBP
Retailer 6£819 GBP
MOH London£821 GBP

38 data points across 14 retailers

13 retailers£141 GBP to £821 GBP

A
Cheapest Retailer
-
£141 GBP
$188 USD
A
Retailer 2
-
£164 GBP
$218 USD
View
A
Retailer 3
-
£175 GBP
$233 USD
View
A
Retailer 4
-
£175 GBP
$233 USD
View
Retailer 5
-
£225 GBP
View
Price last confirmed 13 days ago
B+
Retailer 6
-
£306 GBP
$408 USD
View
A
Retailer 7
-
£317 GBP
View
A
Retailer 8
-
£364 GBP
$485 USD
View
A
Retailer 9
-
£427 GBP
$569 USD
View
B+
Retailer 10
-
£562 GBP
$748 USD
View
B
Retailer 11
-
£564 GBP
$751 USD
View
B
Retailer 12
-
£819 GBP
$1,090 USD
View
Most Expensive
B
MOH London
LG618486544 · Oct 29
£821 GBP
View
12 more retailers have this diamond
Prices start from £141 GBPSave up to £680 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
1.58ct Oval
£141 GBP