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Cushion|Lab Grown|IGI

3.01ct H SI1 Cushion Lab Grown Diamond

ID • H/SI1 • IGI LG843612121

Shape and cutting style on the report: Cushion brilliant

Certificate IGI LG843612121

Diamond specifications and retailer prices

From £576 GBP
As of November 4, 2026
Save £205 GBP (26%) vs most expensive(unlock to see where)
2 retailers carry this diamond
Most expensive: £781 GBP at Adiamor · As of November 3, 2026
View at Adiamor

About this 3.01ct lab-grown cushion diamond

This 3.01ct lab-grown cushion sits in the three to five carat band, graded H colour (near-colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG843612121 or 843612121. Listed at 2 retailers as of November 3, 2026, with prices from £576 to £781, a £205 spread on the same certified stone. Adiamor lists it at £781. 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

3.01
Carat
H
Colour
SI1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle45.4°
Pavilion angle38.5°
OriginLab Grown
Grading LabIGI
CertificateIGI LG843612121
Dimensions10.44 × 6.98 × 4.60 mm
L/W Ratio1.50
Girdle conditionFaceted
Culet sizeLarge
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
10.44 mm6.98 mm3.01 ctH / SI1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG843612121
Side View
Table 64.0%Crown 45.4°Girdle: STK-THKPavilion 38.5°Culet: LargeDepth 65.9%

Caratlytics Score

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B+
Very Good
Strong quality and value balance
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Price History

Last verified: Nov 4
Current: £781 GBP|Low: £576 GBP|High: £781 GBP|Avg: £644 GBP
Adiamor
Retailer 2
October 29, 2026
Retailer 2£576 GBP
Adiamor£781 GBP

2 data points across 2 retailers

2 retailers£576 GBP to £781 GBP

B+
Cheapest Retailer
-
£576 GBP
Most Expensive
B+
Adiamor
D-82654540 · Nov 3
£781 GBP
$1,045 USD
View
1 more retailer has this diamond
Prices start from £576 GBPSave up to £205 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+
3.01ct Cushion
£576 GBP