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Round|Lab Grown|IGI

1.56ct F IF Round Lab Grown Diamond

ID • F/IF • IGI LG814634442

Shape and cutting style on the report: Round brilliant

Certificate IGI LG814634442

Diamond specifications and retailer prices

From £389 GBP
$522 USD
As of November 1, 2026
Save £773 GBP (67%) vs most expensive(unlock to see where)
10 retailers carry this diamond
Most expensive: £1,468 GBP at Rare Carat · As of October 21, 2026
View at Rare Carat

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 IF clarity (flawless or internally-flawless), with a top-tier cut grade and certified by IGI LG814634442 or 814634442. Listed at 10 retailers as of November 1, 2026, with a 199% 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

1.56
Carat
F
Colour
IF
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle36°
Pavilion angle40.9°
OriginLab Grown
Grading LabIGI
CertificateIGI LG814634442
Dimensions7.43 × 7.38 × 4.60 mm
L/W Ratio1.01
Girdle conditionFaceted
Cert comments
As Grown - No indication of post-growth treatment This Laboratory Grown Diamond was created by High Pressure High Temperature (HPHT) growth process Type II
Top View
7.43 mm7.38 mm1.56 ctF / IF
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG814634442
Side View
Table 58.0%Crown 36°Girdle: MediumPavilion 40.9°Culet: NoneDepth 62.1%

Caratlytics Score

How it works →
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: £1,468 GBP|Low: £350 GBP|High: £1,610 GBP|Avg: £791 GBP|-1.5%
Rare Carat
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
November 2, 2026
Retailer 5£389 GBP
Retailer 2£466 GBP
Retailer 7£484 GBP
Retailer 3£515 GBP
Retailer 8£677 GBP
Retailer 9£966 GBP
Retailer 6£1,007 GBP
Retailer 4£1,162 GBP
Rare Carat£1,468 GBP

40 data points across 9 retailers

10 retailers£389 GBP to £1,162 GBP

A
Cheapest Retailer
-
£389 GBP
$522 USD
A
Retailer 2
-
£466 GBP
€595 EUR
View
A
Retailer 3
-
£484 GBP
$649 USD
View
A
Retailer 4
-
£515 GBP
View
B+
Retailer 5
-
£677 GBP
$909 USD
View
B+
Retailer 6
-
£966 GBP
$1,297 USD
View
Retailer 7
-
£1,007 GBP
A$2,079 AUD
View
Price last confirmed 25 days ago
B+
Retailer 8
-
£1,162 GBP
View
Retailer 9
-
£1,442 GBP
$1,935 USD
View
Price last confirmed 12 days ago
Most Expensive
Rare Carat
ks-63155_l_742537464 · Oct 21
£1,468 GBP
$1,970 USD
View
Price last confirmed 12 days ago
9 more retailers have this diamond
Prices start from £389 GBPSave up to £773 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
£389 GBP