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Oval|Lab Grown|IGI

1.59ct E SI1 Oval Lab Grown Diamond

ID • E/SI1 • IGI LG615381662

Shape and cutting style on the report: Oval brilliant

Certificate IGI LG615381662

Diamond specifications and retailer prices

From £176 GBP
$234 USD
As of October 25, 2026
Save £650 GBP (79%) vs most expensive(unlock to see where)
14 retailers carry this diamond
Most expensive: £826 GBP at Brilliant Earth · As of October 29, 2026
View at Brilliant Earth

About this 1.59ct lab-grown oval diamond

This 1.59ct 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 LG615381662 or 615381662. Listed at 14 retailers as of October 25, 2026, with prices from £176 to £826, a £650 spread on the same certified stone. Brilliant Earth lists it at £826. 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

1.59
Carat
E
Colour
SI1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle35.3°
Pavilion angle41.4°
OriginLab Grown
Grading LabIGI
CertificateIGI LG615381662
Dimensions9.44 × 6.64 × 4.13 mm
L/W Ratio1.42
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
9.44 mm6.64 mm1.59 ctE / SI1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG615381662
Side View
Table 60.0%Crown 35.3°Girdle: MED-STKPavilion 41.4°Culet: NoneDepth 62.2%

Caratlytics Score

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A
Excellent
Excellent quality and great value
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Price History

Last verified: Oct 25
Current: £826 GBP|Low: £142 GBP|High: £856 GBP|Avg: £383 GBP|-3.5%
Brilliant Earth
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£142 GBP
Retailer 4£164 GBP
Retailer 6£173 GBP
Retailer 8£176 GBP
Retailer 12£226 GBP
Retailer 14£309 GBP
Retailer 2£319 GBP
Retailer 10£330 GBP
Retailer 11£369 GBP
Retailer 13£428 GBP
Retailer 3£565 GBP
Retailer 9£567 GBP
Retailer 7£826 GBP
Brilliant Earth£826 GBP

37 data points across 14 retailers

14 retailers£176 GBP to £826 GBP

Retailer 1
-
£142 GBP
$189 USD
Price last confirmed 36 days ago
Retailer 2
-
£164 GBP
$219 USD
View
Price last confirmed 35 days ago
Retailer 3
-
£173 GBP
$231 USD
View
Price last confirmed 32 days ago
A
Retailer 4
-
£176 GBP
$234 USD
View
Retailer 5
-
£204 GBP
$271 USD
View
Price last confirmed 18 days ago
Retailer 6
-
£226 GBP
View
Price last confirmed 13 days ago
B+
Retailer 7
-
£309 GBP
$411 USD
View
A
Retailer 8
-
£319 GBP
View
A
Retailer 9
-
£369 GBP
$491 USD
View
A
Retailer 10
-
£428 GBP
$570 USD
View
Retailer 11
-
£565 GBP
$752 USD
View
Price last confirmed 32 days ago
B
Retailer 12
-
£567 GBP
$755 USD
View
B
Retailer 13
-
£826 GBP
View
Most Expensive
B
Brilliant Earth
8918584A · Oct 29
£826 GBP
$1,100 USD
View
13 more retailers have this diamond
Prices start from £176 GBPSave up to £650 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
1.59ct Oval
£176 GBP