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Round|Lab Grown|IGI

1.56ct F VS2 Round Lab Grown Diamond

ID • F/VS2 • IGI LG778666167

Shape and cutting style on the report: Round brilliant

Certificate IGI LG778666167

Diamond specifications and retailer prices

From £158 GBP
$212 USD
As of November 1, 2026
Save £819 GBP (84%) vs most expensive(unlock to see where)
21 retailers carry this diamond
Most expensive: £978 GBP at Brilliant Earth · As of November 1, 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 F colour (colourless) and VS2 clarity (very-slightly-included), with a top-tier cut grade and certified by IGI LG778666167 or 778666167. Listed at 21 retailers as of November 1, 2026, with prices from £158 to £978, a £819 spread on the same certified stone. Brilliant Earth lists it at £978. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.56
Carat
F
Colour
VS2
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle35.2°
Pavilion angle41°
OriginLab Grown
Grading LabIGI
CertificateIGI LG778666167
Dimensions7.46 × 4.56 × 4.56 mm
L/W Ratio1.64
Girdle conditionFaceted
Culet sizePointed
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
7.46 mm4.56 mm1.56 ctF / VS2
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG778666167
Side View
Table 59.0%Crown 35.2°Girdle: ThinPavilion 41°Culet: NoneDepth 61.0%

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: £978 GBP|Low: £158 GBP|High: £1,037 GBP|Avg: £482 GBP|-5.8%
Brilliant Earth
Retailer 2
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Retailer 11
Retailer 12
Retailer 13
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Retailer 19
November 2, 2026
Retailer 6£158 GBP
Retailer 19£177 GBP
Retailer 18£184 GBP
Retailer 14£196 GBP
Retailer 8£197 GBP
Retailer 3£337 GBP
Retailer 9£355 GBP
Retailer 2£361 GBP
Retailer 17£443 GBP
Retailer 16£515 GBP
Retailer 11£567 GBP
Retailer 15£630 GBP
Retailer 10£638 GBP
Retailer 5£669 GBP
Retailer 7£683 GBP
Retailer 12£785 GBP
Retailer 4£795 GBP
Retailer 13£798 GBP
Brilliant Earth£978 GBP

30 data points across 19 retailers

21 retailers£158 GBP to £978 GBP

A
Cheapest Retailer
-
£158 GBP
$212 USD
A
Retailer 2
-
£177 GBP
$237 USD
View
Final sale: no returns
A
Retailer 3
-
£184 GBP
$246 USD
View
A
Retailer 4
-
£196 GBP
$263 USD
View
Retailer 5
-
£197 GBP
$264 USD
View
Price last confirmed 8 days ago
B+
Retailer 6
-
£337 GBP
$451 USD
View
A
Retailer 7
-
£355 GBP
$476 USD
View
A
Retailer 8
-
£361 GBP
View
A
Retailer 9
-
£407 GBP
A$838 AUD
View
A
Retailer 10
-
£443 GBP
$594 USD
View
B+
Retailer 11
-
£515 GBP
$690 USD
View
Retailer 12
-
£567 GBP
$760 USD
View
Price last confirmed 15 days ago
B+
Retailer 13
-
£630 GBP
$844 USD
View
B+
Retailer 14
-
£636 GBP
$852 USD
View
B+
Retailer 15
-
£638 GBP
SGD 1,155 SGD
View
B+
Retailer 16
-
£669 GBP
$897 USD
View
B+
Retailer 17
-
£683 GBP
A$1,408 AUD
View
B
Retailer 18
-
£785 GBP
View
B
Retailer 19
-
£795 GBP
$1,065 USD
View
B
Retailer 20
-
£798 GBP
$1,069 USD
View
Most Expensive
B
Brilliant Earth
21501870A · Nov 1
£978 GBP
$1,310 USD
View
20 more retailers have this diamond
Prices start from £158 GBPSave up to £819 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
£158 GBP