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Round|Lab Grown|IGI

1.56ct H VS2 Round Lab Grown Diamond

ID • H/VS2 • IGI LG811645420

Shape and cutting style on the report: Round brilliant

Certificate IGI LG811645420

Diamond specifications and retailer prices

From £164 GBP
$218 USD
As of October 29, 2026
Save £865 GBP (84%) vs most expensive(unlock to see where)
19 retailers carry this diamond
Most expensive: £1,029 GBP at Brilliant Earth · As of October 29, 2026
View at Brilliant Earth

About this 1.56ct lab-grown round diamond

This 1.56ct lab-grown round sits in the one-and-a-half to two carat band, graded H colour (near-colourless) and VS2 clarity (very-slightly-included), with a top-tier cut grade and certified by IGI LG811645420 or 811645420. Listed at 19 retailers as of October 29, 2026, with prices from £164 to £1,029, a £865 spread on the same certified stone. Brilliant Earth lists it at £1,029. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.56
Carat
H
Colour
VS2
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle35.1°
Pavilion angle41°
OriginLab Grown
Grading LabIGI
CertificateIGI LG811645420
Dimensions7.45 × 7.43 × 4.59 mm
L/W Ratio1.00
Girdle conditionFaceted
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
7.45 mm7.43 mm1.56 ctH / VS2
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG811645420
Side View
Table 58.0%Crown 35.1°Girdle: MED-STKPavilion 41°Culet: NoneDepth 61.7%

Caratlytics Score

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A
Excellent
Excellent quality and great value
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Price History

Last verified: Oct 29
Current: £1,029 GBP|Low: £131 GBP|High: £1,066 GBP|Avg: £484 GBP|+41.2%
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
Retailer 16
October 29, 2026
Retailer 8£164 GBP
Retailer 5£183 GBP
Retailer 15£189 GBP
Retailer 4£203 GBP
Retailer 12£203 GBP
Retailer 10£347 GBP
Retailer 13£374 GBP
Retailer 9£451 GBP
Retailer 11£507 GBP
Retailer 7£536 GBP
Retailer 14£651 GBP
Retailer 6£659 GBP
Retailer 3£691 GBP
Retailer 2£816 GBP
Retailer 16£825 GBP
Brilliant Earth£1,029 GBP

35 data points across 16 retailers

19 retailers£164 GBP to £1,029 GBP

Retailer 1
-
£162 GBP
$216 USD
Price last confirmed 41 days ago
A
Retailer 2
-
£164 GBP
$218 USD
View
A
Retailer 3
-
£183 GBP
$244 USD
View
Final sale: no returns
A
Retailer 4
-
£189 GBP
$252 USD
View
Retailer 5
-
£199 GBP
$265 USD
View
Price last confirmed 40 days ago
A
Retailer 6
-
£203 GBP
$270 USD
View
A
Retailer 7
-
£203 GBP
$270 USD
View
B+
Retailer 8
-
£347 GBP
$462 USD
View
A
Retailer 9
-
£374 GBP
$498 USD
View
A
Retailer 10
-
£451 GBP
$601 USD
View
A
Retailer 11
-
£507 GBP
$675 USD
View
B+
Retailer 12
-
£536 GBP
$714 USD
View
Retailer 13
-
£648 GBP
$863 USD
View
Price last confirmed 39 days ago
B+
Retailer 14
-
£651 GBP
$867 USD
View
B+
Retailer 15
-
£659 GBP
SGD 1,186 SGD
View
B+
Retailer 16
-
£691 GBP
$920 USD
View
B+
Retailer 17
-
£816 GBP
View
B+
Retailer 18
-
£825 GBP
$1,099 USD
View
Most Expensive
B
Brilliant Earth
21492539A · Oct 29
£1,029 GBP
$1,370 USD
View
18 more retailers have this diamond
Prices start from £164 GBPSave up to £865 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
1.56ct Round
£164 GBP