Princess|Lab Grown|IGI

3.56ct E IF Princess Lab Grown Diamond

EX • E/IF • IGI LG634431747

Shape and cutting style on the report: Princess cut

Certificate IGI LG634431747

Diamond specifications and retailer prices

From £5,692 GBP
$7,627 USD
As of October 31, 2026
Save £13,149 GBP (70%) vs most expensive(unlock to see where)
24 retailers carry this diamond
Most expensive: £25,415 GBP at Taylor and Hart · As of October 30, 2026
View at Taylor and Hart

About this 3.56ct lab-grown princess diamond

This 3.56ct lab-grown princess sits in the three to five carat band, graded E colour (colourless) and IF clarity (flawless or internally-flawless), with a top-tier cut grade and certified by IGI LG634431747 or 634431747. Listed at 24 retailers as of October 29, 2026, with a 231% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. Lab-grown prices in the 2ct and up range have fallen 40 to 60% over the last 18 months. Use the cross-retailer spread above to find the lowest current listing.

The 4Cs

3.56
Carat
E
Colour
IF
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle45.7°
Pavilion angle37.7°
OriginLab Grown
Grading LabIGI
CertificateIGI LG634431747
Dimensions8.25 × 8.19 × 5.97 mm
L/W Ratio1.01
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
8.25 mm8.19 mm3.56 ctE / IF
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG634431747
Side View
Table 70.0%Crown 45.7°Girdle: Slightly ThickPavilion 37.7°Culet: NoneDepth 72.9%

Caratlytics Score

How it works →
B+
Very Good
Strong quality and value balance
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Oct 31
Current: £9,544 GBP|Low: £5,692 GBP|High: £28,741 GBP|Avg: £10,906 GBP|-2.2%
Retailer 1
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
Retailer 17
Retailer 18
Retailer 19
Retailer 20
October 31, 2026
Retailer 13£5,692 GBP
Retailer 2£6,337 GBP
Retailer 8£6,512 GBP
Retailer 9£6,591 GBP
Retailer 10£7,097 GBP
Retailer 20£7,284 GBP
Retailer 4£7,351 GBP
Retailer 18£7,575 GBP
Retailer 19£8,177 GBP
Retailer 5£8,506 GBP
Retailer 6£9,125 GBP
Retailer 1£9,544 GBP
Retailer 3£9,762 GBP
Retailer 11£11,624 GBP
Retailer 15£13,331 GBP
Retailer 16£14,561 GBP
Retailer 17£18,765 GBP
Retailer 12£18,825 GBP
Retailer 14£18,841 GBP
Retailer 7£28,741 GBP

40 data points across 20 retailers

24 retailers£5,692 GBP to £18,841 GBP

B+
Cheapest Retailer
-
£5,692 GBP
$7,627 USD
B+
Retailer 2
-
£6,337 GBP
$8,491 USD
View
B+
Retailer 3
-
£6,512 GBP
$8,726 USD
View
B+
Retailer 4
-
£6,591 GBP
$8,831 USD
View
B+
Retailer 5
-
£7,097 GBP
$9,509 USD
View
Final sale: no returns
B+
Retailer 6
-
£7,284 GBP
$9,760 USD
View
B+
Retailer 7
-
£7,351 GBP
$9,850 USD
View
Retailer 8
-
£7,351 GBP
$9,850 USD
View
Price last confirmed 14 days ago
Retailer 9
-
£7,575 GBP
$10,150 USD
View
Price last confirmed 12 days ago
B
Retailer 10
-
£8,177 GBP
$10,956 USD
View
B
Retailer 11
-
£8,506 GBP
$11,397 USD
View
B
Retailer 12
-
£9,125 GBP
$12,227 USD
View
B+
Retailer 13
-
£9,544 GBP
View
B
Retailer 14
-
£9,762 GBP
$13,080 USD
View
B
Retailer 15
-
£11,624 GBP
View
B
Retailer 16
-
£13,331 GBP
€17,011 EUR
View
B
Retailer 17
-
£14,561 GBP
View
Retailer 18
-
£18,765 GBP
A$38,681 AUD
View
Price last confirmed 8 days ago
B
Retailer 19
-
£18,825 GBP
$25,223 USD
View
B
Retailer 20
-
£18,841 GBP
ZAR 407,842 ZAR
View
Most Expensive
Taylor and Hart
LRU1R7H · Oct 30
£25,415 GBP
$34,054 USD
View
Price under review
20 more retailers have this diamond
Prices start from £5,692 GBPSave up to £13,149 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.

B+
3.56ct Princess
£5,692 GBP