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Round|Lab Grown|IGI

1.56ct H VS2 Round Lab Grown Diamond

EX • H/VS2 • IGI LG778658624

Shape and cutting style on the report: Round brilliant

Certificate IGI LG778658624

Diamond specifications and retailer prices

From £661 GBP
$880 USD
As of October 29, 2026
6 retailers carry this diamond
Most expensive: £661 GBP at Brilliant Earth
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 LG778658624 or 778658624. Listed at 6 retailers as of October 29, 2026. 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
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle33.4°
Pavilion angle41.7°
OriginLab Grown
Grading LabIGI
CertificateIGI LG778658624
Dimensions7.51 × 7.48 × 4.59 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
7.51 mm7.48 mm1.56 ctH / VS2
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG778658624
Side View
Table 59.0%Crown 33.4°Girdle: MediumPavilion 41.7°Culet: NoneDepth 61.3%

Caratlytics Score

How it works →
B+
Very Good
Strong quality and value balance
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Price History

Last verified: Oct 29
Current: £661 GBP|Low: £128 GBP|High: £803 GBP|Avg: £451 GBP
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
September 29, 2026
Retailer 5£157 GBP
Retailer 14£178 GBP
Retailer 4£192 GBP
Retailer 6£195 GBP
Retailer 10£320 GBP
Retailer 7£372 GBP
Retailer 13£446 GBP
Retailer 2£474 GBP
Retailer 9£514 GBP
Retailer 3£642 GBP
Brilliant Earth£661 GBP
Retailer 12£674 GBP
Retailer 11£784 GBP
Retailer 8£799 GBP

12 data points across 14 retailers

6 retailers

Retailer 1
-
£157 GBP
$209 USD
Price last confirmed 41 days ago
Retailer 2
-
£192 GBP
$256 USD
View
Price last confirmed 40 days ago
Retailer 3
-
£474 GBP
$631 USD
View
Price last confirmed 31 days ago
Retailer 4
-
£514 GBP
$685 USD
View
Price last confirmed 32 days ago
Retailer 5
-
£627 GBP
$835 USD
View
Price last confirmed 39 days ago
Most Expensive
B+
Brilliant Earth
21501926A · Oct 29
£661 GBP
$880 USD
View
5 more retailers have this diamond

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.

B+
1.56ct Round
£661 GBP