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Round|Lab Grown|IGI

3.76ct F SI1 Round Lab Grown Diamond

ID • F/SI1 • IGI LG632416429

Shape and cutting style on the report: Round brilliant

Certificate IGI LG632416429

Diamond specifications and retailer prices

From £1,000 GBP
CA$1,863 CAD
As of November 2, 2026
Save £323 GBP (24%) vs most expensive(unlock to see where)
2 retailers carry this diamond
Most expensive: £1,323 GBP at The Diamond Guys · As of November 1, 2026
View at The Diamond Guys

About this 3.76ct lab-grown round diamond

This 3.76ct 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 LG632416429 or 632416429. Listed at 2 retailers as of November 1, 2026, with prices from £1,000 to £1,323, a £323 spread on the same certified stone. The Diamond Guys lists it at £1,323. 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

3.76
Carat
F
Colour
SI1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle34.1°
Pavilion angle40.9°
OriginLab Grown
Grading LabIGI
CertificateIGI LG632416429
Dimensions10.07 × 10.04 × 6.10 mm
L/W Ratio1.00
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
10.07 mm10.04 mm3.76 ctF / SI1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG632416429
Side View
Table 58.0%Crown 34.1°Girdle: MED-STKPavilion 40.9°Culet: NoneDepth 60.6%

Caratlytics Score

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B+
Very Good
Strong quality and value balance
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Price History

Last verified: Nov 2
Current: £1,636 GBP|Low: £199 GBP|High: £2,444 GBP|Avg: £957 GBP|-4.4%
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£548 GBP
Retailer 6£588 GBP
Retailer 9£659 GBP
Retailer 11£669 GBP
Retailer 8£774 GBP
Retailer 5£797 GBP
Retailer 4£828 GBP
Retailer 7£1,000 GBP
Retailer 2£1,300 GBP
The Diamond Guys£1,323 GBP
Retailer 1£1,636 GBP
Retailer 10£2,064 GBP

59 data points across 12 retailers

2 retailers£1,000 GBP to £1,323 GBP

B+
Cheapest Retailer
-
£1,000 GBP
CA$1,863 CAD
Most Expensive
B
The Diamond Guys
1954434360 · Nov 1
£1,323 GBP
$1,775 USD
View
1 more retailer has this diamond
Prices start from £1,000 GBPSave up to £323 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+
3.76ct Round
£1,000 GBP