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Round|Lab Grown|IGI

1.83ct J SI2 Round Lab Grown Diamond

EX • J/SI2 • IGI LG478124713

Shape and cutting style on the report: Round brilliant

Certificate IGI LG478124713

Diamond specifications and retailer prices

From £956 GBP
$1,273 USD
As of October 29, 2026
Save £2,624 GBP (73%) vs most expensive(unlock to see where)
11 retailers carry this diamond
Most expensive: £3,580 GBP at MOH London · As of October 29, 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 J colour (near-colourless) and SI2 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG478124713 or 478124713. Listed at 11 retailers as of October 29, 2026, with prices from £956 to £3,580, a £2,624 spread on the same certified stone. MOH London lists it at £3,580. 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
J
Colour
SI2
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle34.7°
Pavilion angle41.5°
OriginLab Grown
Grading LabIGI
CertificateIGI LG478124713
Dimensions7.80 × 7.87 × 4.84 mm
L/W Ratio1.01
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
7.80 mm7.87 mm1.83 ctJ / SI2
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG478124713
Side View
Table 60.0%Crown 34.7°Girdle: MediumPavilion 41.5°Culet: NoneDepth 61.7%

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: Oct 29
Current: £3,580 GBP|Low: £764 GBP|High: £3,604 GBP|Avg: £1,605 GBP|-0.5%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
Retailer 13
October 30, 2026
Retailer 6£956 GBP
Retailer 7£976 GBP
Retailer 10£1,040 GBP
Retailer 12£1,070 GBP
Retailer 8£1,108 GBP
Retailer 13£1,108 GBP
Retailer 2£1,290 GBP
Retailer 4£1,542 GBP
Retailer 9£1,755 GBP
Retailer 3£2,066 GBP
Retailer 11£2,078 GBP
Retailer 5£2,479 GBP
MOH London£3,580 GBP

23 data points across 13 retailers

11 retailers£956 GBP to £3,580 GBP

A
Cheapest Retailer
-
£956 GBP
$1,273 USD
A
Retailer 2
-
£976 GBP
$1,300 USD
View
A
Retailer 3
-
£1,040 GBP
$1,385 USD
View
B+
Retailer 4
-
£1,070 GBP
$1,425 USD
View
Final sale: no returns
B+
Retailer 5
-
£1,108 GBP
$1,476 USD
View
Retailer 6
-
£1,108 GBP
$1,476 USD
View
Price last confirmed 17 days ago
B+
Retailer 7
-
£1,290 GBP
View
B
Retailer 8
-
£1,755 GBP
$2,337 USD
View
B
Retailer 9
-
£2,066 GBP
$2,751 USD
View
B
Retailer 10
-
£2,078 GBP
$2,767 USD
View
Most Expensive
B
MOH London
LG478124713 · Oct 29
£3,580 GBP
View
10 more retailers have this diamond
Prices start from £956 GBPSave up to £2,624 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
£956 GBP