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Oval|Lab Grown|IGI

3.00ct J SI1 Oval Lab Grown Diamond

VG • J/SI1 • IGI LG499190395

Shape and cutting style on the report: Oval brilliant

Certificate IGI LG499190395

Diamond specifications and retailer prices

From £1,278 GBP
As of November 6, 2026
Save £7,398 GBP (85%) vs most expensive(unlock to see where)
10 retailers carry this diamond
Most expensive: £8,675 GBP at MOH London · As of November 5, 2026
View at MOH London

About this 3ct lab-grown oval diamond

This 3ct lab-grown oval sits in the three to five carat band, graded J colour (near-colourless) and SI1 clarity (slightly-included), with a very-good cut grade and certified by IGI LG499190395 or 499190395. Listed at 10 retailers as of November 5, 2026, with prices from £1,278 to £8,675, a £7,398 spread on the same certified stone. MOH London lists it at £8,675. 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
J
Colour
SI1
Clarity
Very Good
Cut

Specifications

CutVery Good
PolishVery Good
SymmetryVery Good
FluorescenceNone
Crown angle36.9°
Pavilion angle39.9°
OriginLab Grown
Grading LabIGI
CertificateIGI LG499190395
Dimensions10.89 × 8.09 × 5.23 mm
L/W Ratio1.35
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
10.89 mm8.09 mm3.00 ctJ / SI1
OriginLab Grown
CutVery Good
PolishVery Good
SymmetryVery Good
FluorescenceNone
CertificateIGI LG499190395
Side View
Table 55.5%Crown 36.9°Girdle: MED-VTKPavilion 39.9°Culet: NoneDepth 64.6%

Caratlytics Score

How it works →
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: Nov 6
Current: £8,675 GBP|Low: £1,278 GBP|High: £8,815 GBP|Avg: £5,078 GBP|-0.3%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
November 5, 2026
Retailer 2£1,278 GBP
Retailer 4£3,685 GBP
Retailer 5£4,275 GBP
Retailer 7£4,292 GBP
Retailer 8£4,725 GBP
Retailer 3£5,360 GBP
Retailer 6£6,607 GBP
MOH London£8,675 GBP

15 data points across 8 retailers

10 retailers£1,278 GBP to £8,675 GBP

A
Cheapest Retailer
-
£1,278 GBP
B+
Retailer 2
-
£3,685 GBP
View
B+
Retailer 3
-
£3,862 GBP
View
Retailer 4
-
£4,275 GBP
View
Price last confirmed 25 days ago
B+
Retailer 5
-
£4,275 GBP
View
B+
Retailer 6
-
£4,292 GBP
View
B
Retailer 7
-
£5,074 GBP
View
B
Retailer 8
-
£5,360 GBP
View
B
Retailer 9
-
£6,607 GBP
View
Most Expensive
B
MOH London
LG499190395 · Nov 5
£8,675 GBP
View
9 more retailers have this diamond
Prices start from £1,278 GBPSave up to £7,398 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
£1,278 GBP