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3.86ct E SI1 Round Lab Grown Diamond

ID • E/SI1 • IGI LG622487732

Shape and cutting style on the report: Round brilliant

Certificate IGI LG622487732

Diamond specifications and retailer prices

From £1,046 GBP
CA$1,946 CAD
As of October 30, 2026
Save £337 GBP (24%) vs most expensive(unlock to see where)
2 retailers carry this diamond
Most expensive: £1,383 GBP at The Diamond Guys · As of October 30, 2026
View at The Diamond Guys

About this 3.86ct lab-grown round diamond

This 3.86ct lab-grown round sits in the three to five carat band, graded E colour (colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG622487732 or 622487732. Listed at 2 retailers as of October 30, 2026, with prices from £1,046 to £1,383, a £337 spread on the same certified stone. The Diamond Guys lists it at £1,383. 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

3.86
Carat
E
Colour
SI1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle34.2°
Pavilion angle40.9°
OriginLab Grown
Grading LabIGI
CertificateIGI LG622487732
Dimensions10.08 × 10.02 × 6.17 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
10.08 mm10.02 mm3.86 ctE / SI1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG622487732
Side View
Table 58.0%Crown 34.2°Girdle: MediumPavilion 40.9°Culet: NoneDepth 61.4%

Caratlytics Score

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B+
Very Good
Strong quality and value balance
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Price History

Last verified: Oct 30
Current: £851 GBP|Low: £210 GBP|High: £4,015 GBP|Avg: £1,130 GBP
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
The Diamond Guys
August 3, 2026
Retailer 3£570 GBP
Retailer 6£635 GBP
Retailer 9£678 GBP
Retailer 11£705 GBP
Retailer 8£807 GBP
Retailer 1£851 GBP
Retailer 4£863 GBP
Retailer 7£1,046 GBP
The Diamond Guys£1,383 GBP
Retailer 10£2,149 GBP
Retailer 2£2,336 GBP
Retailer 5£4,015 GBP

65 data points across 12 retailers

2 retailers£1,046 GBP to £1,383 GBP

B+
Cheapest Retailer
-
£1,046 GBP
CA$1,946 CAD
Most Expensive
B
The Diamond Guys
1954434259 · Oct 30
£1,383 GBP
$1,853 USD
View
1 more retailer has this diamond
Prices start from £1,046 GBPSave up to £337 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+
3.86ct Round
£1,046 GBP