Cushion|Lab Grown|IGI

4.50ct H VS1 Cushion Lab Grown Diamond

EX • H/VS1 • IGI LG819602244

Certificate IGI LG819602244

Diamond specifications and retailer prices

From £1,222 GBP
$1,638 USD
As of October 31, 2026
Save £1,280 GBP (51%) vs most expensive(unlock to see where)
5 retailers carry this diamond
Most expensive: £4,582 GBP at Brilliant Earth · As of September 23, 2026
View at Brilliant Earth

About this 4.5ct lab-grown cushion diamond

This 4.5ct lab-grown cushion sits in the three to five carat band, graded H colour (near-colourless) and VS1 clarity (very-slightly-included), with a top-tier cut grade and certified by IGI LG819602244 or 819602244. Listed at 5 retailers as of October 31, 2026, with a 105% 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

4.50
Carat
H
Colour
VS1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
OriginLab Grown
Grading LabIGI
CertificateIGI LG819602244
Dimensions11.59 × 8.29 × 5.18 mm
L/W Ratio1.40
Top View
11.59 mm8.29 mm4.50 ctH / VS1
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG819602244
Side View
Table 67.0%CrownGirdle: Med. - ThickPavilionCuletDepth 62.5%

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: £4,582 GBP|Low: £769 GBP|High: £4,582 GBP|Avg: £2,270 GBP
Brilliant Earth
Retailer 2
Retailer 3
Retailer 4
Retailer 5
October 31, 2026
Retailer 5£769 GBP
Retailer 2£1,222 GBP
Retailer 4£2,131 GBP
Retailer 3£2,502 GBP
Brilliant Earth£4,582 GBP

8 data points across 5 retailers

5 retailers£1,222 GBP to £2,502 GBP

Retailer 1
-
£769 GBP
$1,030 USD
Price last confirmed 19 days ago
B+
Retailer 2
-
£1,222 GBP
$1,638 USD
View
Retailer 3
-
£2,131 GBP
$2,855 USD
View
Price last confirmed 13 days ago
B+
Retailer 4
-
£2,502 GBP
$3,353 USD
View
Most Expensive
Brilliant Earth
21090716A · Sep 23
£4,582 GBP
$6,140 USD
View
Price last confirmed 38 days ago
4 more retailers have this diamond
Prices start from £1,222 GBPSave up to £1,280 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+
4.50ct Cushion
£1,222 GBP