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Oval|Lab Grown|IGI

3.03ct F SI1 Oval Lab Grown Diamond

EX • F/SI1 • IGI LG598380897

Shape and cutting style on the report: Oval brilliant

Certificate IGI LG598380897

Diamond specifications and retailer prices

From £301 GBP
As of November 6, 2026
Save £1,153 GBP (79%) vs most expensive(unlock to see where)
16 retailers carry this diamond
Most expensive: £1,562 GBP at Rare Carat · As of July 20, 2026
View at Rare Carat

About this 3.03ct lab-grown oval diamond

This 3.03ct 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 LG598380897 or 598380897. Listed at 16 retailers as of November 5, 2026, with a 383% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. 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

3.03
Carat
F
Colour
SI1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle34.9°
Pavilion angle41°
OriginLab Grown
Grading LabIGI
CertificateIGI LG598380897
Dimensions12.08 × 8.20 × 5.02 mm
L/W Ratio1.47
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 mm8.20 mm3.03 ctF / SI1
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG598380897
Side View
Table 59.0%Crown 34.9°Girdle: MED-STKPavilion 41°Culet: NoneDepth 61.2%

Caratlytics Score

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A
Excellent
Excellent quality and great value
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Price History

Last verified: Nov 6
Current: £607 GBP|Low: £289 GBP|High: £2,007 GBP|Avg: £698 GBP|-15.4%
Retailer 1
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 12£301 GBP
Retailer 11£337 GBP
Retailer 2£374 GBP
Retailer 6£374 GBP
Retailer 5£411 GBP
Retailer 7£429 GBP
Retailer 9£482 GBP
Retailer 14£591 GBP
Retailer 1£607 GBP
Retailer 3£656 GBP
Retailer 13£766 GBP
Retailer 10£1,047 GBP
Retailer 4£1,186 GBP
Retailer 15£1,201 GBP
Retailer 8£1,454 GBP

44 data points across 15 retailers

16 retailers£301 GBP to £1,454 GBP

A
Cheapest Retailer
-
£301 GBP
A
Retailer 2
-
£337 GBP
View
Retailer 3
-
£374 GBP
View
Price last confirmed 12 days ago
A
Retailer 4
-
£374 GBP
View
A
Retailer 5
-
£411 GBP
View
A
Retailer 6
-
£429 GBP
View
Final sale: no returns
A
Retailer 7
-
£482 GBP
View
B+
Retailer 8
-
£591 GBP
View
A
Retailer 9
-
£607 GBP
View
A
Retailer 10
-
£656 GBP
View
B+
Retailer 11
-
£766 GBP
View
B+
Retailer 12
-
£1,047 GBP
View
B+
Retailer 13
-
£1,186 GBP
View
B+
Retailer 14
-
£1,201 GBP
View
B
Retailer 15
-
£1,454 GBP
View
Most Expensive
Rare Carat
43167_l_816672643 · Jul 20
£1,562 GBP
$2,091 USD
View
Price last confirmed 109 days ago
15 more retailers have this diamond
Prices start from £301 GBPSave up to £1,153 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
3.03ct Oval
£301 GBP