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Oval|Lab Grown|IGI

3.05ct E SI1 Oval Lab Grown Diamond

ID • E/SI1 • IGI LG678584096

Shape and cutting style on the report: Oval brilliant

Certificate IGI LG678584096

Diamond specifications and retailer prices

From £324 GBP
As of November 6, 2026
Save £1,947 GBP (86%) vs most expensive(unlock to see where)
18 retailers carry this diamond
Most expensive: £2,271 GBP at Brilliant Earth · As of November 6, 2026
View at Brilliant Earth

About this 3.05ct lab-grown oval diamond

This 3.05ct lab-grown oval sits in the three to five carat band, graded E colour (colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG678584096 or 678584096. Listed at 18 retailers as of November 6, 2026, with prices from £324 to £2,271, a £1,947 spread on the same certified stone. Brilliant Earth lists it at £2,271. 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

3.05
Carat
E
Colour
SI1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishVery Good
SymmetryVery Good
FluorescenceNone
Crown angle36.8°
Pavilion angle40.7°
OriginLab Grown
Grading LabIGI
CertificateIGI LG678584096
Dimensions11.46 × 8.22 × 5.12 mm
L/W Ratio1.39
Girdle conditionFaceted
Culet sizePointed
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
11.46 mm8.22 mm3.05 ctE / SI1
OriginLab Grown
CutIdeal
PolishVery Good
SymmetryVery Good
FluorescenceNone
CertificateIGI LG678584096
Side View
Table 62.0%Crown 36.8°Girdle: THN-STKPavilion 40.7°Culet: NoneDepth 62.3%

Caratlytics Score

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A
Excellent
Excellent quality and great value
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Price History

Last verified: Nov 6
Current: £2,271 GBP|Low: £324 GBP|High: £2,473 GBP|Avg: £887 GBP|-8.2%
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
Retailer 15
Retailer 16
November 6, 2026
Retailer 8£324 GBP
Retailer 7£363 GBP
Retailer 14£375 GBP
Retailer 15£402 GBP
Retailer 9£489 GBP
Retailer 5£508 GBP
Retailer 3£538 GBP
Retailer 16£627 GBP
Retailer 2£634 GBP
Retailer 10£657 GBP
Retailer 6£764 GBP
Retailer 13£1,127 GBP
Retailer 4£1,292 GBP
Retailer 12£1,420 GBP
Retailer 11£1,473 GBP
Brilliant Earth£2,271 GBP

40 data points across 16 retailers

18 retailers£324 GBP to £2,271 GBP

A
Cheapest Retailer
-
£324 GBP
A
Retailer 2
-
£363 GBP
View
A
Retailer 3
-
£375 GBP
View
Final sale: no returns
A
Retailer 4
-
£402 GBP
View
Retailer 5
-
£421 GBP
View
Price last confirmed 21 days ago
A
Retailer 6
-
£489 GBP
View
A
Retailer 7
-
£508 GBP
View
B+
Retailer 8
-
£538 GBP
View
A
Retailer 9
-
£627 GBP
View
A
Retailer 10
-
£634 GBP
View
A
Retailer 11
-
£657 GBP
View
B+
Retailer 12
-
£764 GBP
View
B+
Retailer 13
-
£984 GBP
View
B+
Retailer 14
-
£1,127 GBP
View
B
Retailer 15
-
£1,292 GBP
View
B
Retailer 16
-
£1,420 GBP
View
B
Retailer 17
-
£1,473 GBP
View
Most Expensive
B
Brilliant Earth
17470296A · Nov 6
£2,271 GBP
$3,040 USD
View
17 more retailers have this diamond
Prices start from £324 GBPSave up to £1,947 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
3.05ct Oval
£324 GBP