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Round|Lab Grown|IGI

1.83ct K SI1 Round Lab Grown Diamond

ID • K/SI1 • IGI LG447098250

Shape and cutting style on the report: Round brilliant

Certificate IGI LG447098250

Diamond specifications and retailer prices

From £842 GBP
As of November 5, 2026
Save £2,288 GBP (73%) vs most expensive(unlock to see where)
10 retailers carry this diamond
Most expensive: £3,130 GBP at MOH London · As of November 5, 2026
View at MOH London

About this 1.83ct lab-grown round diamond

This 1.83ct lab-grown round sits in the one-and-a-half to two carat band, graded K colour (faint-tinted) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG447098250 or 447098250. Listed at 10 retailers as of November 5, 2026, with prices from £842 to £3,130, a £2,288 spread on the same certified stone. MOH London lists it at £3,130. 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

1.83
Carat
K
Colour
SI1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle35.3°
Pavilion angle40.9°
OriginLab Grown
Grading LabIGI
CertificateIGI LG447098250
Dimensions7.74 × 7.81 × 4.85 mm
L/W Ratio1.01
Girdle conditionFaceted
Culet sizePointed
Cert comments
Faint Brown
Top View
7.74 mm7.81 mm1.83 ctK / SI1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG447098250
Side View
Table 58.0%Crown 35.3°Girdle: MED-STKPavilion 40.9°Culet: NoneDepth 62.3%

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: £3,130 GBP|Low: £808 GBP|High: £3,180 GBP|Avg: £1,506 GBP|-0.3%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
November 6, 2026
Retailer 4£842 GBP
Retailer 5£977 GBP
Retailer 7£977 GBP
Retailer 2£1,068 GBP
Retailer 3£1,107 GBP
Retailer 9£1,404 GBP
Retailer 6£1,554 GBP
Retailer 8£1,924 GBP
MOH London£3,130 GBP

41 data points across 9 retailers

10 retailers£842 GBP to £3,130 GBP

A
Cheapest Retailer
-
£842 GBP
A
Retailer 2
-
£916 GBP
View
Retailer 3
-
£977 GBP
View
Price last confirmed 25 days ago
A
Retailer 4
-
£977 GBP
View
A
Retailer 5
-
£1,068 GBP
View
B+
Retailer 6
-
£1,107 GBP
View
B+
Retailer 7
-
£1,554 GBP
View
B
Retailer 8
-
£1,831 GBP
View
B
Retailer 9
-
£1,924 GBP
View
Most Expensive
B
MOH London
LG447098250 · Nov 5
£3,130 GBP
View
9 more retailers have this diamond
Prices start from £842 GBPSave up to £2,288 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
1.83ct Round
£842 GBP