Cushion|Lab Grown|IGI

5.50ct D VS2 Cushion Lab Grown Diamond

ID • D/VS2 • IGI LG720591573

Shape and cutting style on the report: Cushion modified brilliant

Certificate IGI LG720591573

Diamond specifications and retailer prices

From £836 GBP

$1,113 USD

As of October 29, 2026

Save £2,183 GBP (72%) vs most expensive(unlock to see where)

13 retailers carry this diamond

Most expensive: £4,283 GBP at Rare Carat · As of August 9, 2026

View at Rare Carat

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 VS2 clarity (very-slightly-included), with a top-tier cut grade and certified by IGI LG720591573 or 720591573. Listed at 13 retailers as of October 27, 2026, with a 261% 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

5.50

Carat

Colour

VS2

Clarity

Ideal

Cut

Specifications

CutIdeal

PolishExcellent

SymmetryExcellent

FluorescenceNone

Crown angle36.2°

Pavilion angle34°

OriginLab Grown

Grading LabIGI

CertificateIGI LG720591573

Dimensions12.46 × 9.48 × 12.46 mm

L/W Ratio1.31

Girdle conditionFaceted

Culet sizePointed

Cert comments

This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa

View IGI Report →View Loupe360 Video →

Top View

OriginLab Grown

CutIdeal

PolishExcellent

SymmetryExcellent

FluorescenceNone

CertificateIGI LG720591573

Side View

Caratlytics Score

How it works →

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 29

Current: £4,283 GBP|Low: £614 GBP|High: £8,538 GBP|Avg: £2,469 GBP

Rare Carat

Retailer 2

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Retailer 12

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October 29, 2026

Retailer 3£836 GBP

Retailer 16£866 GBP

Retailer 12£958 GBP

Retailer 13£1,044 GBP

Retailer 18£1,195 GBP

Retailer 2£1,244 GBP

Retailer 14£1,383 GBP

Retailer 6£1,448 GBP

Retailer 10£1,789 GBP

Retailer 4£2,392 GBP

Retailer 15£2,669 GBP

Retailer 17£2,911 GBP

Retailer 11£2,953 GBP

Retailer 5£3,019 GBP

Retailer 8£3,132 GBP

Retailer 9£3,420 GBP

Rare Carat£4,283 GBP

Retailer 7£8,538 GBP

21 data points across 18 retailers

13 retailers£836 GBP to £3,019 GBP

Cheapest Retailer

£836 GBP

$1,113 USD

Final sale: no returns

Retailer 2

£866 GBP

$1,153 USD

View

Price last confirmed 12 days ago

Retailer 3

£958 GBP

View

Price last confirmed 12 days ago

Retailer 4

£1,044 GBP

$1,390 USD

View

Retailer 5

£1,195 GBP

$1,592 USD

View

Retailer 6

£1,244 GBP

View

Retailer 7

£1,383 GBP

$1,842 USD

View

B+

Retailer 8

£2,392 GBP

View

B+

Retailer 9

£2,669 GBP

$3,555 USD

View

B+

Retailer 10

£2,911 GBP

$3,876 USD

View

B+

Retailer 11

£2,953 GBP

View

B+

Retailer 12

£3,019 GBP

$4,020 USD

View

Most Expensive

Rare Carat

23D720591573 · Aug 9

£4,283 GBP

$5,704 USD

View

Price last confirmed 81 days ago

12 more retailers have this diamond

Prices start from £836 GBPSave up to £2,183 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.

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