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Round|Lab Grown|IGI

3.61ct F SI1 Round Lab Grown Diamond

ID • F/SI1 • IGI LG646483169

Shape and cutting style on the report: Round brilliant

Certificate IGI LG646483169

Diamond specifications and retailer prices

From £945 GBP
CA$1,758 CAD
As of October 30, 2026
Save £305 GBP (24%) vs most expensive(unlock to see where)
2 retailers carry this diamond
Most expensive: £1,250 GBP at The Diamond Guys · As of November 1, 2026
View at The Diamond Guys

About this 3.61ct lab-grown round diamond

This 3.61ct 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 LG646483169 or 646483169. Listed at 2 retailers as of October 30, 2026, with prices from £945 to £1,250, a £305 spread on the same certified stone. The Diamond Guys lists it at £1,250. 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

3.61
Carat
F
Colour
SI1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle35.6°
Pavilion angle40.9°
OriginLab Grown
Grading LabIGI
CertificateIGI LG646483169
Dimensions9.84 × 9.78 × 6.08 mm
L/W Ratio1.01
Girdle conditionFaceted
Culet sizePointed
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
9.84 mm9.78 mm3.61 ctF / SI1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG646483169
Side View
Table 58.0%Crown 35.6°Girdle: MED-STKPavilion 40.9°Culet: NoneDepth 62.0%

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: £794 GBP|Low: £189 GBP|High: £3,672 GBP|Avg: £994 GBP|-8.5%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
The Diamond Guys
August 3, 2026
Retailer 3£523 GBP
Retailer 6£559 GBP
Retailer 10£636 GBP
Retailer 12£637 GBP
Retailer 7£738 GBP
Retailer 9£767 GBP
Retailer 1£794 GBP
Retailer 8£945 GBP
Retailer 2£1,231 GBP
The Diamond Guys£1,250 GBP
Retailer 4£1,666 GBP
Retailer 11£1,955 GBP
Retailer 5£2,023 GBP

64 data points across 13 retailers

2 retailers£945 GBP to £1,250 GBP

B+
Cheapest Retailer
-
£945 GBP
CA$1,758 CAD
Most Expensive
B
The Diamond Guys
1954434388 · Nov 1
£1,250 GBP
$1,675 USD
View
1 more retailer has this diamond
Prices start from £945 GBPSave up to £305 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+
3.61ct Round
£945 GBP