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Round|Lab Grown|IGI

2.18ct K SI1 Round Lab Grown Diamond

EX • K/SI1 • IGI LG500151134

Shape and cutting style on the report: Round brilliant

Certificate IGI LG500151134

Diamond specifications and retailer prices

From £1,414 GBP
As of November 5, 2026
Save £3,259 GBP (70%) vs most expensive(unlock to see where)
9 retailers carry this diamond
Most expensive: £4,673 GBP at MOH London · As of November 5, 2026
View at MOH London

About this 2.18ct lab-grown round diamond

This 2.18ct 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 LG500151134 or 500151134. Listed at 9 retailers as of November 5, 2026, with prices from £1,414 to £4,673, a £3,259 spread on the same certified stone. MOH London lists it at £4,673. 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

2.18
Carat
K
Colour
SI1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle33°
Pavilion angle40.4°
OriginLab Grown
Grading LabIGI
CertificateIGI LG500151134
Dimensions8.39 × 8.36 × 4.99 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
8.39 mm8.36 mm2.18 ctK / SI1
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG500151134
Side View
Table 61.0%Crown 33°Girdle: MED-STKPavilion 40.4°Culet: NoneDepth 59.6%

Caratlytics Score

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A
Excellent
Excellent quality and great value
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See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 5
Current: £4,673 GBP|Low: £1,414 GBP|High: £5,870 GBP|Avg: £2,862 GBP|-0.3%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
November 5, 2026
Retailer 4£1,414 GBP
Retailer 5£1,641 GBP
Retailer 2£1,765 GBP
Retailer 7£2,118 GBP
Retailer 9£2,144 GBP
Retailer 6£2,570 GBP
Retailer 3£2,694 GBP
MOH London£4,673 GBP
Retailer 8£5,870 GBP

19 data points across 9 retailers

9 retailers£1,414 GBP to £4,673 GBP

A
Cheapest Retailer
-
£1,414 GBP
A
Retailer 2
-
£1,539 GBP
View
Retailer 3
-
£1,641 GBP
View
Price last confirmed 26 days ago
B+
Retailer 4
-
£1,641 GBP
View
B+
Retailer 5
-
£1,765 GBP
View
B
Retailer 6
-
£2,570 GBP
View
B
Retailer 7
-
£2,694 GBP
View
B
Retailer 8
-
£3,075 GBP
View
Most Expensive
B
MOH London
LG500151134 · Nov 5
£4,673 GBP
View
8 more retailers have this diamond
Prices start from £1,414 GBPSave up to £3,259 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
2.18ct Round
£1,414 GBP