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Heart|Lab Grown|IGI

1.83ct G SI1 Heart Lab Grown Diamond

ID • G/SI1 • IGI LG625433753

Shape and cutting style on the report: Heart brilliant

Certificate IGI LG625433753

Diamond specifications and retailer prices

From £279 GBP
As of November 6, 2026
Save £1,070 GBP (79%) vs most expensive(unlock to see where)
17 retailers carry this diamond
Most expensive: £1,348 GBP at MOH London · As of November 5, 2026
View at MOH London

About this 1.83ct lab-grown heart diamond

This 1.83ct lab-grown heart sits in the one-and-a-half to two carat band, graded G colour (near-colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG625433753 or 625433753. Listed at 17 retailers as of November 5, 2026, with prices from £279 to £1,348, a £1,070 spread on the same certified stone. MOH London lists it at £1,348. 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
G
Colour
SI1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle38.7°
Pavilion angle37.9°
OriginLab Grown
Grading LabIGI
CertificateIGI LG625433753
Dimensions8.68 × 7.50 × 4.88 mm
L/W Ratio1.16
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
8.68 mm7.50 mm1.83 ctG / SI1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG625433753
Side View
Table 61.0%Crown 38.7°Girdle: THN-STKPavilion 37.9°Culet: NoneDepth 56.2%

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 6
Current: £1,348 GBP|Low: £267 GBP|High: £1,554 GBP|Avg: £677 GBP|-1.3%
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
Retailer 14
Retailer 15
Retailer 16
November 6, 2026
Retailer 3£279 GBP
Retailer 5£312 GBP
Retailer 15£323 GBP
Retailer 7£346 GBP
Retailer 12£346 GBP
Retailer 2£440 GBP
Retailer 16£459 GBP
Retailer 14£540 GBP
Retailer 4£552 GBP
Retailer 8£601 GBP
Retailer 9£619 GBP
Retailer 10£873 GBP
Retailer 11£979 GBP
Retailer 13£1,112 GBP
Retailer 6£1,304 GBP
MOH London£1,348 GBP

43 data points across 16 retailers

17 retailers£279 GBP to £1,348 GBP

A
Cheapest Retailer
-
£279 GBP
A
Retailer 2
-
£312 GBP
View
Final sale: no returns
A
Retailer 3
-
£323 GBP
View
A
Retailer 4
-
£346 GBP
View
Retailer 5
-
£346 GBP
View
Price last confirmed 21 days ago
A
Retailer 6
-
£440 GBP
View
B+
Retailer 7
-
£459 GBP
View
B+
Retailer 8
-
£540 GBP
View
B+
Retailer 9
-
£552 GBP
View
B
Retailer 10
-
£601 GBP
View
B+
Retailer 11
-
£619 GBP
View
B
Retailer 12
-
£873 GBP
View
B
Retailer 13
-
£979 GBP
View
B
Retailer 14
-
£1,112 GBP
View
B
Retailer 15
-
£1,141 GBP
View
B
Retailer 16
-
£1,304 GBP
View
Most Expensive
B
MOH London
LG625433753 · Nov 5
£1,348 GBP
View
16 more retailers have this diamond
Prices start from £279 GBPSave up to £1,070 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 Heart
£279 GBP