CaratHunter
Plans
Princess|Lab Grown|IGI

5.51ct E VS1 Princess Lab Grown Diamond

EX • E/VS1 • IGI LG817669622

Shape and cutting style on the report: Princess cut

Certificate IGI LG817669622

Diamond specifications and retailer prices

From £798 GBP
HK$8,300 HKD
As of October 30, 2026
Save £3,160 GBP (80%) vs most expensive(unlock to see where)
11 retailers carry this diamond
Most expensive: £3,957 GBP at Rare Carat · As of October 25, 2026
View at Rare Carat

About this 5.51ct lab-grown princess diamond

This 5.51ct lab-grown princess sits in the over five carat band, graded E colour (colourless) and VS1 clarity (very-slightly-included), with a top-tier cut grade and certified by IGI LG817669622 or 817669622. Listed at 11 retailers as of October 25, 2026, with prices from £798 to £3,957, a £3,160 spread on the same certified stone. Rare Carat lists it at £3,957. 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

5.51
Carat
E
Colour
VS1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle43.3°
Pavilion angle38.7°
OriginLab Grown
Grading LabIGI
CertificateIGI LG817669622
Dimensions9.61 × 9.46 × 6.95 mm
L/W Ratio1.02
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
9.61 mm9.46 mm5.51 ctE / VS1
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG817669622
Side View
Table 72.0%Crown 43.3°Girdle: ThickPavilion 38.7°Culet: NoneDepth 73.5%

Caratlytics Score

How it works →
A
Excellent
Excellent quality and great value
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Oct 30
Current: £3,957 GBP|Low: £798 GBP|High: £4,029 GBP|Avg: £2,015 GBP|-1.8%
Rare Carat
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
October 30, 2026
Retailer 6£798 GBP
Retailer 8£982 GBP
Retailer 2£1,033 GBP
Retailer 4£1,073 GBP
Retailer 9£1,090 GBP
Retailer 10£1,907 GBP
Retailer 11£2,328 GBP
Retailer 7£2,460 GBP
Retailer 5£2,540 GBP
Retailer 3£2,905 GBP
Rare Carat£3,957 GBP

44 data points across 11 retailers

11 retailers£798 GBP to £3,957 GBP

A
Cheapest Retailer
-
£798 GBP
HK$8,300 HKD
A
Retailer 2
-
£982 GBP
$1,308 USD
View
A
Retailer 3
-
£1,033 GBP
View
A
Retailer 4
-
£1,073 GBP
€1,361 EUR
View
B+
Retailer 5
-
£1,090 GBP
$1,451 USD
View
B+
Retailer 6
-
£1,907 GBP
$2,539 USD
View
B+
Retailer 7
-
£2,328 GBP
$3,100 USD
View
B+
Retailer 8
-
£2,460 GBP
$3,276 USD
View
B+
Retailer 9
-
£2,540 GBP
View
Retailer 10
-
£2,905 GBP
A$5,951 AUD
View
Price last confirmed 22 days ago
Most Expensive
B
Rare Carat
KI6226696KF817 · Oct 25
£3,957 GBP
$5,270 USD
View
10 more retailers have this diamond
Prices start from £798 GBPSave up to £3,160 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
5.51ct Princess
£798 GBP