Oval|Lab Grown|IGI

3.05ct F SI1 Oval Lab Grown Diamond

EX • F/SI1 • IGI LG772623143

Shape and cutting style on the report: Oval brilliant

Certificate IGI LG772623143

Diamond specifications and retailer prices

From £829 GBP
As of November 6, 2026
8 retailers carry this diamond
Most expensive: £2,436 GBP at Brilliant Earth · As of October 1, 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 F colour (colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG772623143 or 772623143. Listed at 8 retailers as of November 6, 2026. 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
F
Colour
SI1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle37.4°
Pavilion angle40.6°
OriginLab Grown
Grading LabIGI
CertificateIGI LG772623143
Dimensions11.61 × 8.17 × 5.09 mm
L/W Ratio1.42
Girdle conditionFaceted
Culet sizePointed
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
11.61 mm8.17 mm3.05 ctF / SI1
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG772623143
Side View
Table 61.0%Crown 37.4°Girdle: MED-STKPavilion 40.6°Culet: NoneDepth 62.3%

Caratlytics Score

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B+
Very Good
Strong quality and value balance
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Price History

Last verified: Nov 6
Current: £2,436 GBP|Low: £333 GBP|High: £2,436 GBP|Avg: £874 GBP|+14.4%
Brilliant Earth
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
October 21, 2026
Retailer 12£333 GBP
Retailer 11£448 GBP
Retailer 8£504 GBP
Retailer 5£530 GBP
Retailer 7£593 GBP
Retailer 9£625 GBP
Retailer 3£763 GBP
Retailer 10£763 GBP
Retailer 2£829 GBP
Retailer 6£1,316 GBP
Retailer 4£1,431 GBP
Brilliant Earth£2,436 GBP

12 data points across 12 retailers

8 retailers

Retailer 1
-
£269 GBP
Price last confirmed 44 days ago
Retailer 2
-
£312 GBP
View
Price last confirmed 41 days ago
Retailer 3
-
£329 GBP
View
Price last confirmed 40 days ago
B+
Retailer 4
-
£829 GBP
View
Retailer 5
-
£1,071 GBP
View
Price last confirmed 39 days ago
Retailer 6
-
£1,316 GBP
View
Price last confirmed 36 days ago
Retailer 7
-
£1,431 GBP
View
Price last confirmed 37 days ago
Most Expensive
Brilliant Earth
18043716A · Oct 1
£2,436 GBP
$3,260 USD
View
Price last confirmed 36 days ago
7 more retailers have this diamond
Prices start from £829 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.

B+
3.05ct Oval
£829 GBP