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Round|Lab Grown|IGI

1.80ct K SI2 Round Lab Grown Diamond

ID • K/SI2 • IGI LG447099902

Shape and cutting style on the report: Round brilliant

Certificate IGI LG447099902

Diamond specifications and retailer prices

From £1,595 GBP
As of November 5, 2026
Save £3,427 GBP (68%) vs most expensive(unlock to see where)
8 retailers carry this diamond
Most expensive: £5,022 GBP at MOH London · As of November 3, 2026
View at MOH London

About this 1.8ct lab-grown round diamond

This 1.8ct lab-grown round sits in the one-and-a-half to two carat band, graded K colour (faint-tinted) and SI2 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG447099902 or 447099902. Listed at 8 retailers as of November 3, 2026, with prices from £1,595 to £5,022, a £3,427 spread on the same certified stone. MOH London lists it at £5,022. 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

1.80
Carat
K
Colour
SI2
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryVery Good
FluorescenceNone
Crown angle34.4°
Pavilion angle40.2°
OriginLab Grown
Grading LabIGI
CertificateIGI LG447099902
Dimensions7.74 × 7.81 × 4.76 mm
L/W Ratio1.01
Girdle conditionFaceted
Culet sizePointed
Cert comments
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Top View
7.74 mm7.81 mm1.80 ctK / SI2
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateIGI LG447099902
Side View
Table 56.5%Crown 34.4°GirdlePavilion 40.2°Culet: NoneDepth 61.1%

Caratlytics Score

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B
Good
Decent quality, room for better deals
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See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 5
Current: £5,022 GBP|Low: £1,532 GBP|High: £5,082 GBP|Avg: £2,787 GBP
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
November 1, 2026
Retailer 3£1,595 GBP
Retailer 6£1,736 GBP
Retailer 4£1,851 GBP
Retailer 8£2,348 GBP
Retailer 7£2,544 GBP
Retailer 5£2,892 GBP
Retailer 2£2,901 GBP
Retailer 9£4,141 GBP
MOH London£5,022 GBP

11 data points across 9 retailers

8 retailers£1,595 GBP to £5,022 GBP

B
Cheapest Retailer
-
£1,595 GBP
B
Retailer 2
-
£1,736 GBP
View
Retailer 3
-
£1,851 GBP
View
Price last confirmed 26 days ago
B
Retailer 4
-
£1,851 GBP
View
B
Retailer 5
-
£2,544 GBP
View
B
Retailer 6
-
£2,892 GBP
View
C
Retailer 7
-
£2,901 GBP
View
Most Expensive
C
MOH London
LG447099902 · Nov 3
£5,022 GBP
View
7 more retailers have this diamond
Prices start from £1,595 GBPSave up to £3,427 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
1.80ct Round
£1,595 GBP