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Cushion|Lab Grown|IGI

5.50ct D VS1 Cushion Lab Grown Diamond

EX • D/VS1 • IGI LG824614804

Shape and cutting style on the report: Cushion modified brilliant

Certificate IGI LG824614804

Diamond specifications and retailer prices

From £1,266 GBP
$1,696 USD
As of October 31, 2026
Save £3,876 GBP (75%) vs most expensive(unlock to see where)
18 retailers carry this diamond
Most expensive: £5,142 GBP at Brilliant Earth · As of October 30, 2026
View at Brilliant Earth

About this 5.5ct lab-grown cushion diamond

This 5.5ct lab-grown cushion sits in the over five carat band, graded D colour (colourless) and VS1 clarity (very-slightly-included), with a top-tier cut grade and certified by IGI LG824614804 or 824614804. Listed at 18 retailers as of October 30, 2026, with prices from £1,266 to £5,142, a £3,876 spread on the same certified stone. Brilliant Earth lists it at £5,142. 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

5.50
Carat
D
Colour
VS1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle38.3°
Pavilion angle31.6°
OriginLab Grown
Grading LabIGI
CertificateIGI LG824614804
Dimensions10.29 × 9.59 × 6.03 mm
L/W Ratio1.07
Girdle conditionFaceted
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
10.29 mm9.59 mm5.50 ctD / VS1
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG824614804
Side View
Table 65.0%Crown 38.3°Girdle: STK-THKPavilion 31.6°Culet: NoneDepth 62.9%

Caratlytics Score

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A
Excellent
Excellent quality and great value
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See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Oct 31
Current: £5,142 GBP|Low: £1,168 GBP|High: £10,001 GBP|Avg: £2,769 GBP|-48.6%
Brilliant Earth
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
October 31, 2026
Retailer 10£1,209 GBP
Retailer 9£1,266 GBP
Retailer 4£1,269 GBP
Retailer 8£1,316 GBP
Retailer 12£1,609 GBP
Retailer 15£1,633 GBP
Retailer 2£1,820 GBP
Retailer 17£1,935 GBP
Retailer 3£2,306 GBP
Retailer 18£2,311 GBP
Retailer 13£2,319 GBP
Retailer 6£2,753 GBP
Retailer 16£3,139 GBP
Retailer 11£3,559 GBP
Retailer 14£3,672 GBP
Retailer 7£4,009 GBP
Retailer 5£4,504 GBP
Brilliant Earth£5,142 GBP

32 data points across 18 retailers

18 retailers£1,266 GBP to £5,142 GBP

Retailer 1
-
£1,209 GBP
$1,620 USD
Price last confirmed 19 days ago
A
Retailer 2
-
£1,266 GBP
$1,696 USD
View
Final sale: no returns
A
Retailer 3
-
£1,269 GBP
$1,700 USD
View
Retailer 4
-
£1,316 GBP
View
Price last confirmed 15 days ago
A
Retailer 5
-
£1,609 GBP
View
A
Retailer 6
-
£1,633 GBP
$2,188 USD
View
A
Retailer 7
-
£1,820 GBP
€2,323 EUR
View
A
Retailer 8
-
£1,935 GBP
$2,593 USD
View
B+
Retailer 9
-
£2,306 GBP
$3,090 USD
View
Retailer 10
-
£2,311 GBP
A$4,764 AUD
View
Price last confirmed 10 days ago
B+
Retailer 11
-
£2,319 GBP
ZAR 50,199 ZAR
View
B+
Retailer 12
-
£2,753 GBP
View
B+
Retailer 13
-
£3,139 GBP
$4,206 USD
View
B
Retailer 14
-
£3,559 GBP
A$7,337 AUD
View
B
Retailer 15
-
£3,672 GBP
View
B
Retailer 16
-
£4,009 GBP
$5,372 USD
View
Retailer 17
-
£4,504 GBP
$6,035 USD
View
Price last confirmed 10 days ago
Most Expensive
B
Brilliant Earth
20995217A · Oct 30
£5,142 GBP
$6,890 USD
View
17 more retailers have this diamond
Prices start from £1,266 GBPSave up to £3,876 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
5.50ct Cushion
£1,266 GBP