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Round|Lab Grown|IGI

1.81ct H VS1 Round Lab Grown Diamond

VG • H/VS1 • IGI LG754510404

Shape and cutting style on the report: Round brilliant

Certificate IGI LG754510404

Diamond specifications and retailer prices

From £159 GBP
$214 USD
As of November 1, 2026
Save £653 GBP (80%) vs most expensive(unlock to see where)
16 retailers carry this diamond
Most expensive: £812 GBP at Brilliant Earth · As of November 2, 2026
View at Brilliant Earth

About this 1.81ct lab-grown round diamond

This 1.81ct 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 very-good cut grade and certified by IGI LG754510404 or 754510404. Listed at 16 retailers as of November 1, 2026, with prices from £159 to £812, a £653 spread on the same certified stone. Brilliant Earth lists it at £812. Cut grade matters more than carat or clarity for visible brilliance. If you can shift budget toward an Excellent or Ideal cut, do it before chasing higher colour or clarity.

The 4Cs

1.81
Carat
H
Colour
VS1
Clarity
Very Good
Cut

Specifications

CutVery Good
PolishExcellent
SymmetryVery Good
FluorescenceNone
Crown angle36.4°
Pavilion angle41.8°
OriginLab Grown
Grading LabIGI
CertificateIGI LG754510404
Dimensions7.69 × 7.66 × 4.91 mm
L/W Ratio1.00
Girdle conditionFaceted
Culet sizePointed
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
7.69 mm7.66 mm1.81 ctH / VS1
OriginLab Grown
CutVery Good
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateIGI LG754510404
Side View
Table 59.0%Crown 36.4°Girdle: MED-STKPavilion 41.8°Culet: NoneDepth 64.0%

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 1
Current: £812 GBP|Low: £155 GBP|High: £1,371 GBP|Avg: £463 GBP|-40.8%
Brilliant Earth
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
November 2, 2026
Retailer 10£159 GBP
Retailer 3£185 GBP
Retailer 11£197 GBP
Retailer 7£203 GBP
Retailer 8£308 GBP
Retailer 4£339 GBP
Retailer 9£341 GBP
Retailer 2£361 GBP
Retailer 15£396 GBP
Retailer 14£452 GBP
Retailer 12£635 GBP
Retailer 13£637 GBP
Retailer 5£675 GBP
Retailer 6£806 GBP
Brilliant Earth£812 GBP

41 data points across 15 retailers

16 retailers£159 GBP to £812 GBP

A
Cheapest Retailer
-
£159 GBP
$214 USD
A
Retailer 2
-
£185 GBP
$248 USD
View
A
Retailer 3
-
£197 GBP
$265 USD
View
Retailer 4
-
£203 GBP
$272 USD
View
Price last confirmed 8 days ago
A
Retailer 5
-
£308 GBP
View
B+
Retailer 6
-
£339 GBP
$455 USD
View
A
Retailer 7
-
£341 GBP
ZAR 7,396 ZAR
View
A
Retailer 8
-
£361 GBP
€462 EUR
View
A
Retailer 9
-
£396 GBP
$532 USD
View
A
Retailer 10
-
£452 GBP
$606 USD
View
B+
Retailer 11
-
£635 GBP
$852 USD
View
B+
Retailer 12
-
£637 GBP
$855 USD
View
B+
Retailer 13
-
£645 GBP
$865 USD
View
B+
Retailer 14
-
£675 GBP
$905 USD
View
B
Retailer 15
-
£806 GBP
View
Most Expensive
B
Brilliant Earth
18094994A · Nov 2
£812 GBP
$1,090 USD
View
15 more retailers have this diamond
Prices start from £159 GBPSave up to £653 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
1.81ct Round
£159 GBP