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Princess|Lab Grown|IGI

1.56ct E IF Princess Lab Grown Diamond

GD • E/IF • IGI LG704584863

Shape and cutting style on the report: Princess cut

Certificate IGI LG704584863

Diamond specifications and retailer prices

From £379 GBP
$508 USD
As of October 25, 2026
Save £1,094 GBP (74%) vs most expensive(unlock to see where)
9 retailers carry this diamond
Most expensive: £1,485 GBP at Rare Carat · As of October 18, 2026
View at Rare Carat

About this 1.56ct lab-grown princess diamond

This 1.56ct lab-grown princess sits in the one-and-a-half to two carat band, graded E colour (colourless) and IF clarity (flawless or internally-flawless), with a standard cut grade and certified by IGI LG704584863 or 704584863. Listed at 9 retailers as of October 25, 2026, with a 289% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. 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

1.56
Carat
E
Colour
IF
Clarity
Good
Cut

Specifications

CutGood
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle49.6°
Pavilion angle38.2°
OriginLab Grown
Grading LabIGI
CertificateIGI LG704584863
Dimensions6.08 × 6.07 × 4.50 mm
L/W Ratio1.00
Culet sizePointed
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
6.08 mm6.07 mm1.56 ctE / IF
OriginLab Grown
CutGood
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG704584863
Side View
Table 68.0%Crown 49.6°Girdle: MediumPavilion 38.2°Culet: NoneDepth 74.1%

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: Oct 25
Current: £1,485 GBP|Low: £379 GBP|High: £1,552 GBP|Avg: £973 GBP|-1.5%
Rare Carat
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
October 31, 2026
Retailer 9£379 GBP
Retailer 8£509 GBP
Retailer 2£611 GBP
Retailer 4£644 GBP
Retailer 5£831 GBP
Retailer 6£1,232 GBP
Retailer 7£1,405 GBP
Retailer 3£1,473 GBP
Rare Carat£1,485 GBP

43 data points across 9 retailers

9 retailers£379 GBP to £1,473 GBP

A
Cheapest Retailer
-
£379 GBP
$508 USD
A
Retailer 2
-
£509 GBP
$682 USD
View
A
Retailer 3
-
£611 GBP
View
A
Retailer 4
-
£644 GBP
ZAR 13,950 ZAR
View
B+
Retailer 5
-
£831 GBP
$1,113 USD
View
B+
Retailer 6
-
£1,232 GBP
$1,651 USD
View
B+
Retailer 7
-
£1,405 GBP
$1,882 USD
View
B+
Retailer 8
-
£1,473 GBP
View
Most Expensive
Rare Carat
J74-H-9K-1186_l_704584863 · Oct 18
£1,485 GBP
$1,990 USD
View
Price last confirmed 13 days ago
8 more retailers have this diamond
Prices start from £379 GBPSave up to £1,094 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 Princess
£379 GBP