CaratHunter
Plans
Round|Lab Grown|IGI

1.83ct K SI2 Round Lab Grown Diamond

EX • K/SI2 • IGI LG500163370

Shape and cutting style on the report: Round brilliant

Certificate IGI LG500163370

Diamond specifications and retailer prices

From £1,622 GBP
As of November 5, 2026
Save £3,469 GBP (68%) vs most expensive(unlock to see where)
8 retailers carry this diamond
Most expensive: £5,091 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 SI2 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG500163370 or 500163370. Listed at 8 retailers as of November 5, 2026, with prices from £1,622 to £5,091, a £3,469 spread on the same certified stone. MOH London lists it at £5,091. 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
SI2
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle36.1°
Pavilion angle41°
OriginLab Grown
Grading LabIGI
CertificateIGI LG500163370
Dimensions7.73 × 7.71 × 4.90 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
7.73 mm7.71 mm1.83 ctK / SI2
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG500163370
Side View
Table 57.0%Crown 36.1°Girdle: MED-STKPavilion 41°Culet: NoneDepth 63.5%

Caratlytics Score

How it works →
B+
Very Good
Strong quality and value balance
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 5
Current: £5,091 GBP|Low: £1,557 GBP|High: £5,173 GBP|Avg: £2,715 GBP|-0.3%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
November 5, 2026
Retailer 3£1,622 GBP
Retailer 9£1,654 GBP
Retailer 6£1,765 GBP
Retailer 4£1,881 GBP
Retailer 8£2,384 GBP
Retailer 7£2,586 GBP
Retailer 5£2,939 GBP
Retailer 2£2,949 GBP
Retailer 10£4,210 GBP
MOH London£5,091 GBP

15 data points across 10 retailers

8 retailers£1,622 GBP to £5,091 GBP

B+
Cheapest Retailer
-
£1,622 GBP
B
Retailer 2
-
£1,765 GBP
View
B
Retailer 3
-
£1,881 GBP
View
Retailer 4
-
£1,881 GBP
View
Price last confirmed 26 days ago
B
Retailer 5
-
£2,586 GBP
View
B
Retailer 6
-
£2,939 GBP
View
B
Retailer 7
-
£2,949 GBP
View
Most Expensive
B
MOH London
LG500163370 · Nov 5
£5,091 GBP
View
7 more retailers have this diamond
Prices start from £1,622 GBPSave up to £3,469 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+
1.83ct Round
£1,622 GBP