CaratHunter
Plans
Oval|Lab Grown|IGI

3.08ct E SI1 Oval Lab Grown Diamond

ID • E/SI1 • IGI LG678584129

Shape and cutting style on the report: Oval brilliant

Certificate IGI LG678584129

Diamond specifications and retailer prices

From £327 GBP
As of November 6, 2026
Save £1,959 GBP (86%) vs most expensive(unlock to see where)
17 retailers carry this diamond
Most expensive: £2,286 GBP at Brilliant Earth · As of November 6, 2026
View at Brilliant Earth

About this 3.08ct lab-grown oval diamond

This 3.08ct 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 LG678584129 or 678584129. Listed at 17 retailers as of November 6, 2026, with prices from £327 to £2,286, a £1,959 spread on the same certified stone. Brilliant Earth lists it at £2,286. 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

3.08
Carat
E
Colour
SI1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle33.8°
Pavilion angle40.5°
OriginLab Grown
Grading LabIGI
CertificateIGI LG678584129
Dimensions11.89 × 8.24 × 4.97 mm
L/W Ratio1.44
Girdle conditionFaceted
Culet sizePointed
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
11.89 mm8.24 mm3.08 ctE / SI1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG678584129
Side View
Table 63.0%Crown 33.8°Girdle: MediumPavilion 40.5°Culet: NoneDepth 60.3%

Caratlytics Score

How it works →
A
Excellent
Excellent quality and great value
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 6
Current: £2,286 GBP|Low: £327 GBP|High: £2,495 GBP|Avg: £855 GBP|-8.4%
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
November 6, 2026
Retailer 7£327 GBP
Retailer 5£366 GBP
Retailer 6£379 GBP
Retailer 12£406 GBP
Retailer 3£512 GBP
Retailer 14£544 GBP
Retailer 13£631 GBP
Retailer 8£659 GBP
Retailer 2£677 GBP
Retailer 4£778 GBP
Retailer 10£1,090 GBP
Retailer 15£1,304 GBP
Retailer 9£1,434 GBP
Retailer 11£1,489 GBP
Brilliant Earth£2,286 GBP

46 data points across 15 retailers

17 retailers£327 GBP to £2,286 GBP

A
Cheapest Retailer
-
£327 GBP
A
Retailer 2
-
£366 GBP
View
A
Retailer 3
-
£379 GBP
View
Final sale: no returns
A
Retailer 4
-
£406 GBP
View
Retailer 5
-
£424 GBP
View
Price last confirmed 21 days ago
A
Retailer 6
-
£512 GBP
View
B+
Retailer 7
-
£544 GBP
View
A
Retailer 8
-
£631 GBP
View
A
Retailer 9
-
£659 GBP
View
A
Retailer 10
-
£677 GBP
View
A
Retailer 11
-
£778 GBP
View
B+
Retailer 12
-
£994 GBP
View
B+
Retailer 13
-
£1,090 GBP
View
B+
Retailer 14
-
£1,304 GBP
View
B
Retailer 15
-
£1,434 GBP
View
B
Retailer 16
-
£1,489 GBP
View
Most Expensive
B
Brilliant Earth
17470518A · Nov 6
£2,286 GBP
$3,060 USD
View
16 more retailers have this diamond
Prices start from £327 GBPSave up to £1,959 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
3.08ct Oval
£327 GBP