CaratHunter
Plans
Cushion|Lab Grown|IGI

5.50ct D VS1 Cushion Lab Grown Diamond

ID • D/VS1 • IGI LG776631013

Shape and cutting style on the report: Square cushion modified brilliant

Certificate IGI LG776631013

Diamond specifications and retailer prices

From £1,233 GBP
$1,652 USD
As of October 31, 2026
Save £3,872 GBP (76%) vs most expensive(unlock to see where)
17 retailers carry this diamond
Most expensive: £5,105 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 LG776631013 or 776631013. Listed at 17 retailers as of October 30, 2026, with prices from £1,233 to £5,105, a £3,872 spread on the same certified stone. Brilliant Earth lists it at £5,105. 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
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle37.6°
Pavilion angle39.7°
OriginLab Grown
Grading LabIGI
CertificateIGI LG776631013
Dimensions10.38 × 10.16 × 6.65 mm
L/W Ratio1.02
Girdle conditionFaceted
Culet sizePointed
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
10.38 mm10.16 mm5.50 ctD / VS1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG776631013
Side View
Table 68.0%Crown 37.6°Girdle: MED-STKPavilion 39.7°Culet: NoneDepth 65.5%

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 31
Current: £5,105 GBP|Low: £1,131 GBP|High: £9,628 GBP|Avg: £3,000 GBP|-47.0%
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
October 31, 2026
Retailer 9£1,233 GBP
Retailer 12£1,302 GBP
Retailer 7£1,405 GBP
Retailer 6£1,828 GBP
Retailer 13£1,851 GBP
Retailer 2£1,969 GBP
Retailer 3£2,086 GBP
Retailer 5£3,128 GBP
Retailer 8£3,217 GBP
Retailer 10£3,701 GBP
Retailer 11£4,220 GBP
Retailer 4£4,480 GBP
Brilliant Earth£5,105 GBP

40 data points across 13 retailers

17 retailers£1,233 GBP to £5,105 GBP

A
Cheapest Retailer
-
£1,233 GBP
$1,652 USD
Final sale: no returns
A
Retailer 2
-
£1,302 GBP
$1,745 USD
View
A
Retailer 3
-
£1,405 GBP
View
A
Retailer 4
-
£1,548 GBP
HK$16,200 HKD
View
A
Retailer 5
-
£1,802 GBP
$2,415 USD
View
A
Retailer 6
-
£1,828 GBP
View
A
Retailer 7
-
£1,851 GBP
$2,480 USD
View
A
Retailer 8
-
£1,969 GBP
€2,513 EUR
View
B+
Retailer 9
-
£2,086 GBP
$2,795 USD
View
B+
Retailer 10
-
£3,128 GBP
View
B+
Retailer 11
-
£3,217 GBP
$4,311 USD
View
B
Retailer 12
-
£3,433 GBP
$4,600 USD
View
B
Retailer 13
-
£3,701 GBP
View
Retailer 14
-
£4,220 GBP
$5,655 USD
View
Price last confirmed 10 days ago
B
Retailer 15
-
£4,480 GBP
SGD 8,111 SGD
View
B
Retailer 16
-
£4,576 GBP
$6,132 USD
View
Most Expensive
B
Brilliant Earth
18915901Y · Oct 30
£5,105 GBP
$6,840 USD
View
16 more retailers have this diamond
Prices start from £1,233 GBPSave up to £3,872 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
£1,233 GBP