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Round|Lab Grown|IGI

3.07ct F SI1 Round Lab Grown Diamond

EX • F/SI1 • IGI LG628472161

Shape and cutting style on the report: Round brilliant

Certificate IGI LG628472161

Diamond specifications and retailer prices

From £924 GBP
As of November 5, 2026
Save £299 GBP (24%) vs most expensive(unlock to see where)
3 retailers carry this diamond
Most expensive: £1,223 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 LG628472161 or 628472161. Listed at 3 retailers as of November 5, 2026, with prices from £924 to £1,223, a £299 spread on the same certified stone. The Diamond Guys lists it at £1,223. 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
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle36°
Pavilion angle40.8°
OriginLab Grown
Grading LabIGI
CertificateIGI LG628472161
Dimensions9.26 × 9.20 × 5.81 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
9.26 mm9.20 mm3.07 ctF / SI1
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG628472161
Side View
Table 56.0%Crown 36°Girdle: MED-STKPavilion 40.8°Culet: NoneDepth 63.0%

Caratlytics Score

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B+
Very Good
Strong quality and value balance
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See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 5
Current: £260 GBP|Low: £185 GBP|High: £2,132 GBP|Avg: £911 GBP|+36.2%
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
The Diamond Guys
September 19, 2026
Retailer 1£260 GBP
Retailer 12£285 GBP
Retailer 7£288 GBP
Retailer 10£400 GBP
Retailer 11£450 GBP
Retailer 8£490 GBP
Retailer 9£508 GBP
Retailer 2£702 GBP
Retailer 13£702 GBP
Retailer 3£780 GBP
Retailer 14£802 GBP
Retailer 4£924 GBP
The Diamond Guys£1,223 GBP
Retailer 6£1,389 GBP
Retailer 5£1,947 GBP

68 data points across 15 retailers

3 retailers£924 GBP to £1,223 GBP

Retailer 1
-
£285 GBP
Price last confirmed 51 days ago
B+
Retailer 2
-
£924 GBP
View
Most Expensive
B
The Diamond Guys
1954434419 · Nov 6
£1,223 GBP
$1,646 USD
View
2 more retailers have this diamond
Prices start from £924 GBPSave up to £299 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
£924 GBP