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3.07ct F SI1 Round Lab Grown Diamond

ID • F/SI1 • IGI LG620493179

Shape and cutting style on the report: Round brilliant

Certificate IGI LG620493179

Diamond specifications and retailer prices

From £910 GBP
As of November 5, 2026
Save £294 GBP (24%) vs most expensive(unlock to see where)
3 retailers carry this diamond
Most expensive: £1,204 GBP at The Diamond Guys · As of November 6, 2026
View at The Diamond Guys

About this 3.07ct lab-grown round diamond

This 3.07ct lab-grown round 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 LG620493179 or 620493179. Listed at 3 retailers as of November 5, 2026, with prices from £910 to £1,204, a £294 spread on the same certified stone. The Diamond Guys lists it at £1,204. 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

3.07
Carat
F
Colour
SI1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle33.6°
Pavilion angle40.8°
OriginLab Grown
Grading LabIGI
CertificateIGI LG620493179
Dimensions9.46 × 9.41 × 5.66 mm
L/W Ratio1.01
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
9.46 mm9.41 mm3.07 ctF / SI1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG620493179
Side View
Table 60.0%Crown 33.6°Girdle: MediumPavilion 40.8°Culet: NoneDepth 60.0%

Caratlytics Score

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B+
Very Good
Strong quality and value balance
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Price History

Last verified: Nov 5
Current: £256 GBP|Low: £180 GBP|High: £3,106 GBP|Avg: £1,062 GBP|+37.6%
Retailer 1
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Retailer 10
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Retailer 15
The Diamond Guys
September 19, 2026
Retailer 1£256 GBP
Retailer 13£279 GBP
Retailer 8£283 GBP
Retailer 11£392 GBP
Retailer 12£444 GBP
Retailer 9£480 GBP
Retailer 10£504 GBP
Retailer 14£700 GBP
Retailer 2£702 GBP
Retailer 3£768 GBP
Retailer 15£787 GBP
Retailer 4£910 GBP
The Diamond Guys£1,204 GBP
Retailer 7£1,389 GBP
Retailer 6£1,924 GBP
Retailer 5£3,106 GBP

68 data points across 16 retailers

3 retailers£910 GBP to £1,204 GBP

Retailer 1
-
£279 GBP
Price last confirmed 51 days ago
B+
Retailer 2
-
£910 GBP
View
Most Expensive
B
The Diamond Guys
1954434417 · Nov 6
£1,204 GBP
$1,621 USD
View
2 more retailers have this diamond
Prices start from £910 GBPSave up to £294 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.

B+
3.07ct Round
£910 GBP