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Marquise|Lab Grown|IGI

2.54ct E FL Marquise Lab Grown Diamond

ID • E/FL • IGI LG818683666

Shape and cutting style on the report: Marquise brilliant

Certificate IGI LG818683666

Diamond specifications and retailer prices

From £2,796 GBP
$3,746 USD
As of October 31, 2026
Save £9,275 GBP (77%) vs most expensive(unlock to see where)
10 retailers carry this diamond
Most expensive: £12,071 GBP at With Clarity · As of October 31, 2026
View at With Clarity

About this 2.54ct lab-grown marquise diamond

This 2.54ct lab-grown marquise sits in the two to three carat band, graded E colour (colourless) and FL clarity (flawless or internally-flawless), with a top-tier cut grade and certified by IGI LG818683666 or 818683666. Listed at 10 retailers as of October 31, 2026, with prices from £2,796 to £12,071, a £9,275 spread on the same certified stone. With Clarity lists it at £12,071. 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

2.54
Carat
E
Colour
FL
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle37°
Pavilion angle40.2°
OriginLab Grown
Grading LabIGI
CertificateIGI LG818683666
Dimensions13.77 × 7.06 × 4.54 mm
L/W Ratio1.95
Girdle conditionFaceted
Cert comments
As Grown - No indication of post-growth treatment This Laboratory Grown Diamond was created by High Pressure High Temperature (HPHT) growth process Type II
Top View
13.77 mm7.06 mm2.54 ctE / FL
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG818683666
Side View
Table 58.0%Crown 37°Girdle: STK-THKPavilion 40.2°Culet: NoneDepth 64.3%

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: £6,588 GBP|Low: £2,796 GBP|High: £12,071 GBP|Avg: £6,483 GBP|-1.2%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
With Clarity
November 1, 2026
Retailer 4£2,796 GBP
Retailer 7£3,812 GBP
Retailer 2£4,115 GBP
Retailer 5£4,681 GBP
Retailer 3£4,967 GBP
Retailer 6£6,538 GBP
Retailer 1£6,588 GBP
Retailer 8£8,174 GBP
Retailer 9£10,833 GBP
With Clarity£12,071 GBP

35 data points across 10 retailers

10 retailers£2,796 GBP to £12,071 GBP

A
Cheapest Retailer
-
£2,796 GBP
$3,746 USD
B+
Retailer 2
-
£3,812 GBP
HK$39,900 HKD
View
B+
Retailer 3
-
£4,115 GBP
View
B+
Retailer 4
-
£4,681 GBP
$6,272 USD
View
B+
Retailer 5
-
£4,967 GBP
€6,338 EUR
View
B
Retailer 6
-
£6,538 GBP
$8,760 USD
View
B+
Retailer 7
-
£6,588 GBP
View
Retailer 8
-
£8,174 GBP
$10,952 USD
View
Price last confirmed 8 days ago
B
Retailer 9
-
£10,833 GBP
$14,514 USD
View
Most Expensive
B
With Clarity
818683666 · Oct 31
£12,071 GBP
$16,174 USD
View
9 more retailers have this diamond
Prices start from £2,796 GBPSave up to £9,275 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
2.54ct Marquise
£2,796 GBP