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Oval|Lab Grown|IGI

3.00ct G SI1 Oval Lab Grown Diamond

VG • G/SI1 • IGI LG828671575

Shape and cutting style on the report: Oval brilliant

Certificate IGI LG828671575

Diamond specifications and retailer prices

From £300 GBP
As of November 6, 2026
Save £2,681 GBP (90%) vs most expensive(unlock to see where)
11 retailers carry this diamond
Most expensive: £2,981 GBP at Brilliant Earth · As of November 6, 2026
View at Brilliant Earth

About this 3ct lab-grown oval diamond

This 3ct lab-grown oval sits in the three to five carat band, graded G colour (near-colourless) and SI1 clarity (slightly-included), with a very-good cut grade and certified by IGI LG828671575 or 828671575. Listed at 11 retailers as of November 6, 2026, with prices from £300 to £2,981, a £2,681 spread on the same certified stone. Brilliant Earth lists it at £2,981. Cut grade matters more than carat or clarity for visible brilliance. If you can shift budget toward an Excellent or Ideal cut, do it before chasing higher colour or clarity.

The 4Cs

3.00
Carat
G
Colour
SI1
Clarity
Very Good
Cut

Specifications

CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle38.2°
Pavilion angle37.8°
OriginLab Grown
Grading LabIGI
CertificateIGI LG828671575
Dimensions11.60 × 7.93 × 4.85 mm
L/W Ratio1.46
Girdle conditionFaceted
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
11.60 mm7.93 mm3.00 ctG / SI1
OriginLab Grown
CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG828671575
Side View
Table 58.0%Crown 38.2°Girdle: STK-THKPavilion 37.8°Culet: NoneDepth 61.2%

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: £2,981 GBP|Low: £300 GBP|High: £2,981 GBP|Avg: £946 GBP
Brilliant Earth
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
November 6, 2026
Retailer 10£300 GBP
Retailer 9£383 GBP
Retailer 7£445 GBP
Retailer 12£447 GBP
Retailer 2£581 GBP
Retailer 5£592 GBP
Retailer 4£778 GBP
Retailer 8£974 GBP
Retailer 3£1,098 GBP
Retailer 11£1,269 GBP
Retailer 6£1,294 GBP
Brilliant Earth£2,981 GBP

44 data points across 12 retailers

11 retailers£300 GBP to £2,981 GBP

A
Cheapest Retailer
-
£300 GBP
Final sale: no returns
A
Retailer 2
-
£445 GBP
View
B+
Retailer 3
-
£447 GBP
View
B+
Retailer 4
-
£581 GBP
View
A
Retailer 5
-
£592 GBP
View
B+
Retailer 6
-
£778 GBP
View
B+
Retailer 7
-
£974 GBP
View
B
Retailer 8
-
£1,098 GBP
View
B
Retailer 9
-
£1,269 GBP
View
B+
Retailer 10
-
£1,294 GBP
View
Most Expensive
C
Brilliant Earth
21325364A · Nov 6
£2,981 GBP
$3,990 USD
View
10 more retailers have this diamond
Prices start from £300 GBPSave up to £2,681 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
3.00ct Oval
£300 GBP