Princess|Lab Grown|IGI

4.51ct H VVS2 Princess Lab Grown Diamond

EX • H/VVS2 • IGI LG574351211

Shape and cutting style on the report: Princess cut

Certificate IGI LG574351211

Diamond specifications and retailer prices

From £1,303 GBP
$1,746 USD
As of October 30, 2026
Save £2,503 GBP (66%) vs most expensive(unlock to see where)
5 retailers carry this diamond
Most expensive: £3,806 GBP at Taylor and Hart · As of October 30, 2026
View at Taylor and Hart

About this 4.51ct lab-grown princess diamond

This 4.51ct lab-grown princess sits in the three to five carat band, graded H colour (near-colourless) and VVS2 clarity (very-very-slightly-included), with a top-tier cut grade and certified by IGI LG574351211 or 574351211. Listed at 5 retailers as of October 30, 2026, with prices from £1,303 to £3,806, a £2,503 spread on the same certified stone. Taylor and Hart lists it at £3,806. 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

4.51
Carat
H
Colour
VVS2
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle44.9°
Pavilion angle38.1°
OriginLab Grown
Grading LabIGI
CertificateIGI LG574351211
Dimensions8.89 × 8.72 × 6.41 mm
L/W Ratio1.02
Culet sizePointed
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process and may include post-growth treatment Type IIa
Top View
8.89 mm8.72 mm4.51 ctH / VVS2
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG574351211
Side View
Table 68.0%Crown 44.9°Girdle: MED-STKPavilion 38.1°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: £3,504 GBP|Low: £1,165 GBP|High: £3,806 GBP|Avg: £1,982 GBP|-0.5%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Taylor and Hart
October 29, 2026
Retailer 5£1,165 GBP
Retailer 6£1,213 GBP
Retailer 3£1,303 GBP
Retailer 4£1,469 GBP
Retailer 2£1,720 GBP
Retailer 1£3,504 GBP
Taylor and Hart£3,806 GBP

5 data points across 7 retailers

5 retailers£1,303 GBP to £3,806 GBP

A
Cheapest Retailer
-
£1,303 GBP
$1,746 USD
B+
Retailer 2
-
£1,469 GBP
$1,968 USD
View
B+
Retailer 3
-
£1,720 GBP
$2,304 USD
View
B
Retailer 4
-
£3,504 GBP
View
Most Expensive
B
Taylor and Hart
FBBKK7J · Oct 30
£3,806 GBP
$5,100 USD
View
4 more retailers have this diamond
Prices start from £1,303 GBPSave up to £2,503 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
4.51ct Princess
£1,303 GBP