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Marquise|Lab Grown|IGI

5.50ct E IF Marquise Lab Grown Diamond

ID • E/IF • IGI LG754561936

Shape and cutting style on the report: Marquise brilliant

Certificate IGI LG754561936

Diamond specifications and retailer prices

From £4,390 GBP
$5,882 USD
As of October 30, 2026
Save £21,475 GBP (83%) vs most expensive(unlock to see where)
25 retailers carry this diamond
Most expensive: £25,865 GBP at With Clarity · As of October 30, 2026
View at With Clarity

About this 5.5ct lab-grown marquise diamond

This 5.5ct lab-grown marquise sits in the over five carat band, graded E colour (colourless) and IF clarity (flawless or internally-flawless), with a top-tier cut grade and certified by IGI LG754561936 or 754561936. Listed at 25 retailers as of October 30, 2026, with prices from £4,390 to £25,865, a £21,475 spread on the same certified stone. With Clarity lists it at £25,865. 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
E
Colour
IF
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle35.8°
Pavilion angle38.6°
OriginLab Grown
Grading LabIGI
CertificateIGI LG754561936
Dimensions19.09 × 9.20 × 5.46 mm
L/W Ratio2.08
Girdle conditionFaceted
Culet sizePointed
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
19.09 mm9.20 mm5.50 ctE / IF
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG754561936
Side View
Table 65.0%Crown 35.8°Girdle: MED-STKPavilion 38.6°Culet: NoneDepth 59.3%

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 30
Current: £5,725 GBP|Low: £4,155 GBP|High: £29,098 GBP|Avg: £11,050 GBP|-3.6%
Retailer 1
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
Retailer 19
Retailer 20
Retailer 21
With Clarity
October 31, 2026
Retailer 10£4,390 GBP
Retailer 5£4,601 GBP
Retailer 2£4,679 GBP
Retailer 16£4,916 GBP
Retailer 20£5,090 GBP
Retailer 18£5,093 GBP
Retailer 1£5,725 GBP
Retailer 4£6,045 GBP
Retailer 17£6,530 GBP
Retailer 7£7,245 GBP
Retailer 19£8,402 GBP
Retailer 13£8,434 GBP
Retailer 8£9,632 GBP
Retailer 15£10,346 GBP
Retailer 21£10,419 GBP
Retailer 12£11,262 GBP
Retailer 11£11,953 GBP
Retailer 3£12,350 GBP
Retailer 6£14,168 GBP
Retailer 14£17,423 GBP
Retailer 9£17,827 GBP
With Clarity£25,865 GBP

29 data points across 22 retailers

25 retailers£4,390 GBP to £25,865 GBP

A
Cheapest Retailer
-
£4,390 GBP
$5,882 USD
A
Retailer 2
-
£4,601 GBP
$6,165 USD
View
A
Retailer 3
-
£4,679 GBP
$6,269 USD
View
A
Retailer 4
-
£4,916 GBP
$6,587 USD
View
Final sale: no returns
A
Retailer 5
-
£5,090 GBP
$6,820 USD
View
A
Retailer 6
-
£5,093 GBP
$6,824 USD
View
Retailer 7
-
£5,706 GBP
$7,646 USD
View
Price last confirmed 14 days ago
A
Retailer 8
-
£5,725 GBP
$7,671 USD
View
A
Retailer 9
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£6,045 GBP
$8,100 USD
View
A
Retailer 10
-
£6,530 GBP
View
Retailer 11
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£6,863 GBP
$9,196 USD
View
Price last confirmed 95 days ago
A
Retailer 12
-
£7,245 GBP
View
A
Retailer 13
-
£8,402 GBP
€10,722 EUR
View
A
Retailer 14
-
£8,434 GBP
$11,300 USD
View
A
Retailer 15
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£9,139 GBP
$12,245 USD
View
A
Retailer 16
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£9,632 GBP
$12,906 USD
View
A
Retailer 17
-
£10,346 GBP
ZAR 223,959 ZAR
View
A
Retailer 18
-
£10,419 GBP
View
A
Retailer 19
-
£11,262 GBP
$15,090 USD
View
Retailer 20
-
£11,953 GBP
A$24,640 AUD
View
Price last confirmed 8 days ago
A
Retailer 21
-
£12,350 GBP
$16,547 USD
View
A
Retailer 22
-
£14,168 GBP
$18,983 USD
View
Retailer 23
-
£17,423 GBP
A$35,915 AUD
View
Price last confirmed 22 days ago
B+
Retailer 24
-
£17,827 GBP
$23,886 USD
View
Most Expensive
B+
With Clarity
754561936 · Oct 30
£25,865 GBP
$34,656 USD
View
24 more retailers have this diamond
Prices start from £4,390 GBPSave up to £21,475 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 Marquise
£4,390 GBP