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Round|Lab Grown|IGI

2.21ct K SI1 Round Lab Grown Diamond

ID • K/SI1 • IGI LG485136741

Shape and cutting style on the report: Round brilliant

Certificate IGI LG485136741

Diamond specifications and retailer prices

From £1,433 GBP
As of November 5, 2026
Save £3,303 GBP (70%) vs most expensive(unlock to see where)
9 retailers carry this diamond
Most expensive: £4,736 GBP at MOH London · As of November 5, 2026
View at MOH London

About this 2.21ct lab-grown round diamond

This 2.21ct lab-grown round sits in the two to three carat band, graded K colour (faint-tinted) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG485136741 or 485136741. Listed at 9 retailers as of November 5, 2026, with prices from £1,433 to £4,736, a £3,303 spread on the same certified stone. MOH London lists it at £4,736. 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

2.21
Carat
K
Colour
SI1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle35.9°
Pavilion angle40.3°
OriginLab Grown
Grading LabIGI
CertificateIGI LG485136741
Dimensions8.34 × 8.33 × 5.15 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
8.34 mm8.33 mm2.21 ctK / SI1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG485136741
Side View
Table 56.5%Crown 35.9°Girdle: MediumPavilion 40.3°Culet: NoneDepth 61.8%

Caratlytics Score

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A
Excellent
Excellent quality and great value
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Price History

Last verified: Nov 5
Current: £4,736 GBP|Low: £1,433 GBP|High: £4,812 GBP|Avg: £2,578 GBP|-0.3%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
November 5, 2026
Retailer 4£1,433 GBP
Retailer 5£1,663 GBP
Retailer 2£1,787 GBP
Retailer 7£2,144 GBP
Retailer 8£2,196 GBP
Retailer 6£2,603 GBP
Retailer 3£2,730 GBP
MOH London£4,736 GBP

18 data points across 8 retailers

9 retailers£1,433 GBP to £4,736 GBP

A
Cheapest Retailer
-
£1,433 GBP
A
Retailer 2
-
£1,560 GBP
View
A
Retailer 3
-
£1,663 GBP
View
Retailer 4
-
£1,663 GBP
View
Price last confirmed 26 days ago
B+
Retailer 5
-
£1,787 GBP
View
B
Retailer 6
-
£2,603 GBP
View
B
Retailer 7
-
£2,730 GBP
View
B
Retailer 8
-
£3,117 GBP
View
Most Expensive
B
MOH London
LG485136741 · Nov 5
£4,736 GBP
View
8 more retailers have this diamond
Prices start from £1,433 GBPSave up to £3,303 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.

A
2.21ct Round
£1,433 GBP