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Marquise|Lab Grown|IGI

5.51ct E VS1 Marquise Lab Grown Diamond

VG • E/VS1 • IGI LG696557543

Shape and cutting style on the report: Marquise brilliant

Certificate IGI LG696557543

Diamond specifications and retailer prices

From £1,293 GBP
As of October 26, 2026
Save £1,604 GBP (55%) vs most expensive(unlock to see where)
10 retailers carry this diamond
Most expensive: £2,897 GBP at Taylor and Hart · As of October 26, 2026
View at Taylor and Hart

About this 5.51ct lab-grown marquise diamond

This 5.51ct lab-grown marquise sits in the over five carat band, graded E colour (colourless) and VS1 clarity (very-slightly-included), with a very-good cut grade and certified by IGI LG696557543 or 696557543. Listed at 10 retailers as of October 26, 2026, with prices from £1,293 to £2,897, a £1,604 spread on the same certified stone. Taylor and Hart lists it at £2,897. Cut grade matters more than carat or clarity for visible brilliance. If you can shift budget toward an Excellent or Ideal cut, do it before chasing higher colour or clarity.

The 4Cs

5.51
Carat
E
Colour
VS1
Clarity
Very Good
Cut

Specifications

CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle33.9°
Pavilion angle37.7°
OriginLab Grown
Grading LabIGI
CertificateIGI LG696557543
Dimensions19.21 × 9.19 × 5.20 mm
L/W Ratio2.09
Girdle conditionFaceted
Culet sizePointed
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
19.21 mm9.19 mm5.51 ctE / VS1
OriginLab Grown
CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG696557543
Side View
Table 66.0%Crown 33.9°Girdle: STK-THKPavilion 37.7°Culet: NoneDepth 56.6%

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 26
Current: £1,793 GBP|Low: £611 GBP|High: £10,225 GBP|Avg: £2,690 GBP|+2.1%
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
Taylor and Hart
October 26, 2026
Retailer 11£802 GBP
Retailer 8£963 GBP
Retailer 7£1,293 GBP
Retailer 3£1,387 GBP
Retailer 14£1,434 GBP
Retailer 1£1,793 GBP
Retailer 10£1,942 GBP
Retailer 6£2,277 GBP
Retailer 13£2,298 GBP
Retailer 9£2,578 GBP
Retailer 12£2,580 GBP
Taylor and Hart£2,897 GBP
Retailer 2£3,012 GBP
Retailer 5£4,316 GBP
Retailer 4£10,225 GBP

9 data points across 15 retailers

10 retailers£1,293 GBP to £2,897 GBP

Retailer 1
-
£717 GBP
$961 USD
Price last confirmed 8 days ago
Retailer 2
-
£963 GBP
$1,290 USD
View
Price last confirmed 5 days ago
A
Retailer 3
-
£1,293 GBP
View
Retailer 4
-
£1,434 GBP
$1,922 USD
View
Price last confirmed 9 days ago
B+
Retailer 5
-
£1,793 GBP
$2,403 USD
View
B+
Retailer 6
-
£1,942 GBP
$2,602 USD
View
B+
Retailer 7
-
£2,298 GBP
View
B
Retailer 8
-
£2,578 GBP
$3,454 USD
View
B
Retailer 9
-
£2,580 GBP
$3,457 USD
View
Most Expensive
B
Taylor and Hart
PY9NVQC · Oct 26
£2,897 GBP
$3,882 USD
View
9 more retailers have this diamond
Prices start from £1,293 GBPSave up to £1,604 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
5.51ct Marquise
£1,293 GBP