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Oval|Lab Grown|IGI

1.76ct E SI1 Oval Lab Grown Diamond

ID • E/SI1 • IGI LG617474012

Shape and cutting style on the report: Oval brilliant

Certificate IGI LG617474012

Diamond specifications and retailer prices

From £155 GBP
$206 USD
As of October 26, 2026
Save £837 GBP (84%) vs most expensive(unlock to see where)
13 retailers carry this diamond
Most expensive: £991 GBP at Brilliant Earth · As of October 29, 2026
View at Brilliant Earth

About this 1.76ct lab-grown oval diamond

This 1.76ct 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 LG617474012 or 617474012. Listed at 13 retailers as of October 26, 2026, with prices from £155 to £991, a £837 spread on the same certified stone. Brilliant Earth lists it at £991. 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

1.76
Carat
E
Colour
SI1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle34.7°
Pavilion angle41°
OriginLab Grown
Grading LabIGI
CertificateIGI LG617474012
Dimensions10.24 × 6.83 × 4.15 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
10.24 mm6.83 mm1.76 ctE / SI1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG617474012
Side View
Table 61.0%Crown 34.7°Girdle: MED-STKPavilion 41°Culet: NoneDepth 60.8%

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 26
Current: £991 GBP|Low: £149 GBP|High: £1,021 GBP|Avg: £436 GBP|-2.9%
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 29, 2026
Retailer 6£155 GBP
Retailer 8£179 GBP
Retailer 3£191 GBP
Retailer 13£191 GBP
Retailer 12£247 GBP
Retailer 4£332 GBP
Retailer 2£352 GBP
Retailer 10£357 GBP
Retailer 11£442 GBP
Retailer 14£448 GBP
Retailer 5£617 GBP
Retailer 9£619 GBP
Retailer 7£897 GBP
Brilliant Earth£991 GBP

36 data points across 14 retailers

13 retailers£155 GBP to £991 GBP

A
Cheapest Retailer
-
£155 GBP
$206 USD
A
Retailer 2
-
£179 GBP
$239 USD
View
A
Retailer 3
-
£191 GBP
$255 USD
View
A
Retailer 4
-
£191 GBP
$255 USD
View
A
Retailer 5
-
£247 GBP
View
Price last confirmed 12 days ago
B+
Retailer 6
-
£332 GBP
$442 USD
View
A
Retailer 7
-
£352 GBP
View
B+
Retailer 8
-
£442 GBP
$589 USD
View
B+
Retailer 9
-
£448 GBP
$596 USD
View
B+
Retailer 10
-
£617 GBP
$821 USD
View
B+
Retailer 11
-
£619 GBP
$824 USD
View
B
Retailer 12
-
£897 GBP
View
Most Expensive
B
Brilliant Earth
8971351A · Oct 29
£991 GBP
$1,320 USD
View
12 more retailers have this diamond
Prices start from £155 GBPSave up to £837 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
1.76ct Oval
£155 GBP