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Oval|Lab Grown|IGI

3.07ct G SI1 Oval Lab Grown Diamond

GD • G/SI1 • IGI LG605390350

Shape and cutting style on the report: Oval brilliant

Certificate IGI LG605390350

Diamond specifications and retailer prices

From £275 GBP
As of November 6, 2026
Save £1,051 GBP (79%) vs most expensive(unlock to see where)
14 retailers carry this diamond
Most expensive: £1,420 GBP at Rare Carat · As of October 28, 2026
View at Rare Carat

About this 3.07ct lab-grown oval diamond

This 3.07ct lab-grown oval sits in the three to five carat band, graded G colour (near-colourless) and SI1 clarity (slightly-included), with a standard cut grade and certified by IGI LG605390350 or 605390350. Listed at 14 retailers as of November 5, 2026, with a 382% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. 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

3.07
Carat
G
Colour
SI1
Clarity
Good
Cut

Specifications

CutGood
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle35.3°
Pavilion angle41.1°
OriginLab Grown
Grading LabIGI
CertificateIGI LG605390350
Dimensions12.08 × 8.15 × 5.05 mm
L/W Ratio1.48
Girdle conditionFaceted
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
12.08 mm8.15 mm3.07 ctG / SI1
OriginLab Grown
CutGood
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG605390350
Side View
Table 60.0%Crown 35.3°Girdle: MED-STKPavilion 41.1°Culet: NoneDepth 62.0%

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: £1,552 GBP|Low: £275 GBP|High: £2,657 GBP|Avg: £859 GBP
Rare Carat
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 11£275 GBP
Retailer 14£318 GBP
Retailer 12£341 GBP
Retailer 4£383 GBP
Retailer 8£388 GBP
Retailer 3£452 GBP
Retailer 6£544 GBP
Retailer 2£549 GBP
Retailer 9£608 GBP
Retailer 5£814 GBP
Retailer 15£998 GBP
Retailer 13£1,095 GBP
Retailer 10£1,326 GBP
Rare Carat£1,552 GBP
Retailer 7£2,657 GBP

10 data points across 15 retailers

14 retailers£275 GBP to £1,326 GBP

A
Cheapest Retailer
-
£275 GBP
B+
Retailer 2
-
£318 GBP
View
B+
Retailer 3
-
£341 GBP
View
B+
Retailer 4
-
£383 GBP
View
A
Retailer 5
-
£388 GBP
View
B+
Retailer 6
-
£452 GBP
View
B
Retailer 7
-
£544 GBP
View
B+
Retailer 8
-
£549 GBP
View
B+
Retailer 9
-
£608 GBP
View
B+
Retailer 10
-
£814 GBP
View
B
Retailer 11
-
£998 GBP
View
B
Retailer 12
-
£1,095 GBP
View
B
Retailer 13
-
£1,326 GBP
View
Most Expensive
Rare Carat
KI3503903KF605 · Oct 28
£1,420 GBP
$1,900 USD
View
Price last confirmed 9 days ago
13 more retailers have this diamond
Prices start from £275 GBPSave up to £1,051 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
3.07ct Oval
£275 GBP