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Round|Lab Grown|IGI

3.03ct F IF Round Lab Grown Diamond

ID • F/IF • IGI LG737590173

Shape and cutting style on the report: Round brilliant

Certificate IGI LG737590173

Diamond specifications and retailer prices

From £556 GBP
As of November 3, 2026
Save £5,378 GBP (91%) vs most expensive(unlock to see where)
26 retailers carry this diamond
Most expensive: £5,933 GBP at Brilliant Earth · As of November 4, 2026
View at Brilliant Earth

About this 3.03ct lab-grown round diamond

This 3.03ct lab-grown round sits in the three to five carat band, graded F colour (colourless) and IF clarity (flawless or internally-flawless), with a top-tier cut grade and certified by IGI LG737590173 or 737590173. Listed at 26 retailers as of November 3, 2026, with prices from £556 to £5,933, a £5,378 spread on the same certified stone. Brilliant Earth lists it at £5,933. Lab-grown prices in the 2ct and up range have fallen 40 to 60% over the last 18 months. Use the cross-retailer spread above to find the lowest current listing.

The 4Cs

3.03
Carat
F
Colour
IF
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle33°
Pavilion angle41.1°
OriginLab Grown
Grading LabIGI
CertificateIGI LG737590173
Dimensions9.36 × 9.32 × 5.66 mm
L/W Ratio1.00
Girdle conditionFaceted
Culet sizePointed
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
9.36 mm9.32 mm3.03 ctF / IF
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG737590173
Side View
Table 59.0%Crown 33°Girdle: MediumPavilion 41.1°Culet: NoneDepth 60.5%

Caratlytics Score

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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 3
Current: £5,933 GBP|Low: £533 GBP|High: £6,126 GBP|Avg: £2,086 GBP|-3.1%
Brilliant Earth
Retailer 2
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Retailer 20
November 5, 2026
Retailer 3£556 GBP
Retailer 8£604 GBP
Retailer 9£644 GBP
Retailer 19£774 GBP
Retailer 10£1,043 GBP
Retailer 13£1,079 GBP
Retailer 15£1,081 GBP
Retailer 6£1,439 GBP
Retailer 20£1,533 GBP
Retailer 18£1,606 GBP
Retailer 16£1,653 GBP
Retailer 4£2,000 GBP
Retailer 11£2,165 GBP
Retailer 12£2,176 GBP
Retailer 7£2,539 GBP
Retailer 2£2,659 GBP
Retailer 17£3,209 GBP
Retailer 14£3,574 GBP
Retailer 5£4,933 GBP
Brilliant Earth£5,933 GBP

39 data points across 20 retailers

26 retailers£556 GBP to £5,933 GBP

A
Cheapest Retailer
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£556 GBP
A
Retailer 2
-
£604 GBP
View
A
Retailer 3
-
£621 GBP
View
Final sale: no returns
Retailer 4
-
£644 GBP
View
Price last confirmed 19 days ago
A
Retailer 5
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£644 GBP
View
A
Retailer 6
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£774 GBP
View
A
Retailer 7
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£881 GBP
View
A
Retailer 8
-
£1,043 GBP
View
A
Retailer 9
-
£1,079 GBP
View
A
Retailer 10
-
£1,081 GBP
View
A
Retailer 11
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£1,230 GBP
View
B+
Retailer 12
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£1,439 GBP
View
B+
Retailer 13
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£1,533 GBP
View
B+
Retailer 14
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£1,606 GBP
View
B+
Retailer 15
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£1,653 GBP
View
B+
Retailer 16
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£2,000 GBP
View
B+
Retailer 17
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£2,148 GBP
View
B+
Retailer 18
-
£2,165 GBP
View
B+
Retailer 19
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£2,176 GBP
View
B
Retailer 20
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£2,539 GBP
View
B
Retailer 21
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£2,542 GBP
View
B+
Retailer 22
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£2,659 GBP
View
B+
Retailer 23
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£3,209 GBP
View
B
Retailer 24
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£3,574 GBP
View
B
Retailer 25
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£4,933 GBP
View
Most Expensive
B
Brilliant Earth
19794393Y · Nov 4
£5,933 GBP
$8,010 USD
View
25 more retailers have this diamond
Prices start from £556 GBPSave up to £5,378 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 Round
£556 GBP