Cushion|Lab Grown|IGI

0.50ct D VS1 Cushion Lab Grown Diamond

ID • D/VS1 • IGI LG818664550

Shape and cutting style on the report: Cushion modified brilliant

Certificate IGI LG818664550

Diamond specifications and retailer prices

From £116 GBP
$156 USD
As of October 25, 2026
Save £277 GBP (70%) vs most expensive(unlock to see where)
11 retailers carry this diamond
Most expensive: £912 GBP at MOH London · As of October 26, 2026
View at MOH London

About this 0.5ct lab-grown cushion diamond

This 0.5ct lab-grown cushion sits in the half to three-quarter carat band, graded D colour (colourless) and VS1 clarity (very-slightly-included), with a top-tier cut grade and certified by IGI LG818664550 or 818664550. Listed at 11 retailers as of October 25, 2026, with a 238% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

0.50
Carat
D
Colour
VS1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishVery Good
SymmetryVery Good
FluorescenceNone
Crown angle33.9°
Pavilion angle35.7°
OriginLab Grown
Grading LabIGI
CertificateIGI LG818664550
Dimensions5.71 × 4.23 × 2.70 mm
L/W Ratio1.35
Girdle conditionFaceted
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
5.71 mm4.23 mm0.50 ctD / VS1
OriginLab Grown
CutIdeal
PolishVery Good
SymmetryVery Good
FluorescenceNone
CertificateIGI LG818664550
Side View
Table 57.0%Crown 33.9°Girdle: THN-THKPavilion 35.7°CuletDepth 63.8%

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 25
Current: £912 GBP|Low: £51 GBP|High: £922 GBP|Avg: £309 GBP|-1.1%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
Retailer 13
October 27, 2026
Retailer 4£51 GBP
Retailer 13£99 GBP
Retailer 8£116 GBP
Retailer 2£197 GBP
Retailer 9£205 GBP
Retailer 11£212 GBP
Retailer 12£212 GBP
Retailer 6£222 GBP
Retailer 7£298 GBP
Retailer 5£393 GBP
Retailer 3£569 GBP
Retailer 10£695 GBP
MOH London£912 GBP

24 data points across 13 retailers

11 retailers£116 GBP to £393 GBP

A
Cheapest Retailer
-
£116 GBP
$156 USD
A
Retailer 2
-
£197 GBP
ZAR 4,266 ZAR
View
Retailer 3
-
£205 GBP
€262 EUR
View
Price last confirmed 8 days ago
B+
Retailer 4
-
£212 GBP
$284 USD
View
Retailer 5
-
£212 GBP
$284 USD
View
Price last confirmed 41 days ago
B+
Retailer 6
-
£222 GBP
View
B+
Retailer 7
-
£298 GBP
View
B
Retailer 8
-
£393 GBP
$527 USD
View
Retailer 9
-
£569 GBP
View
Price last confirmed 9 days ago
Retailer 10
-
£695 GBP
$932 USD
View
Price last confirmed 10 days ago
Most Expensive
MOH London
LG818664550 · Oct 26
£912 GBP
View
Price under review
10 more retailers have this diamond
Prices start from £116 GBPSave up to £277 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
0.50ct Cushion
£116 GBP