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Round|Lab Grown|IGI

1.83ct H VS1 Round Lab Grown Diamond

ID • H/VS1 • IGI LG638427887

Shape and cutting style on the report: Round brilliant

Certificate IGI LG638427887

Diamond specifications and retailer prices

From £354 GBP
$475 USD
As of November 1, 2026
Save £513 GBP (59%) vs most expensive(unlock to see where)
8 retailers carry this diamond
Most expensive: £924 GBP at MOH London · As of October 25, 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 H colour (near-colourless) and VS1 clarity (very-slightly-included), with a top-tier cut grade and certified by IGI LG638427887 or 638427887. Listed at 8 retailers as of October 31, 2026, with a 145% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.83
Carat
H
Colour
VS1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle35.5°
Pavilion angle40.9°
OriginLab Grown
Grading LabIGI
CertificateIGI LG638427887
Dimensions7.82 × 7.75 × 4.87 mm
L/W Ratio1.01
Girdle conditionFaceted
Culet sizePointed
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
7.82 mm7.75 mm1.83 ctH / VS1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG638427887
Side View
Table 57.0%Crown 35.5°Girdle: MED-STKPavilion 40.9°Culet: NoneDepth 62.5%

Caratlytics Score

How it works →
A
Excellent
Excellent quality and great value
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 1
Current: £924 GBP|Low: £335 GBP|High: £933 GBP|Avg: £548 GBP|-1.0%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
November 1, 2026
Retailer 3£354 GBP
Retailer 5£361 GBP
Retailer 7£361 GBP
Retailer 4£406 GBP
Retailer 2£663 GBP
Retailer 6£867 GBP
MOH London£924 GBP

13 data points across 7 retailers

8 retailers£354 GBP to £867 GBP

B+
Cheapest Retailer
-
£354 GBP
$475 USD
A
Retailer 2
-
£361 GBP
$485 USD
View
A
Retailer 3
-
£406 GBP
$545 USD
View
B+
Retailer 4
-
£637 GBP
$855 USD
View
B+
Retailer 5
-
£656 GBP
$880 USD
View
B+
Retailer 6
-
£663 GBP
$890 USD
View
B
Retailer 7
-
£867 GBP
$1,164 USD
View
Most Expensive
MOH London
LG638427887 · Oct 25
£924 GBP
View
Price last confirmed 8 days ago
7 more retailers have this diamond
Prices start from £354 GBPSave up to £513 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
£354 GBP