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Marquise|Lab Grown|IGI

2.60ct E FL Marquise Lab Grown Diamond

ID • E/FL • IGI LG818684298

Shape and cutting style on the report: Marquise brilliant

Certificate IGI LG818684298

Diamond specifications and retailer prices

From £2,861 GBP
$3,834 USD
As of October 31, 2026
Save £9,496 GBP (77%) vs most expensive(unlock to see where)
8 retailers carry this diamond
Most expensive: £12,357 GBP at With Clarity · As of October 31, 2026
View at With Clarity

About this 2.6ct lab-grown marquise diamond

This 2.6ct 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 LG818684298 or 818684298. Listed at 8 retailers as of October 31, 2026, with prices from £2,861 to £12,357, a £9,496 spread on the same certified stone. With Clarity lists it at £12,357. 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

2.60
Carat
E
Colour
FL
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle36.6°
Pavilion angle40.1°
OriginLab Grown
Grading LabIGI
CertificateIGI LG818684298
Dimensions13.86 × 7.12 × 4.57 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
13.86 mm7.12 mm2.60 ctE / FL
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG818684298
Side View
Table 57.0%Crown 36.6°Girdle: STK-THKPavilion 40.1°Culet: NoneDepth 64.2%

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: £4,107 GBP|Low: £2,861 GBP|High: £12,357 GBP|Avg: £6,935 GBP|-2.6%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
With Clarity
November 1, 2026
Retailer 4£2,861 GBP
Retailer 1£4,107 GBP
Retailer 5£4,791 GBP
Retailer 3£5,084 GBP
Retailer 2£6,770 GBP
Retailer 7£8,367 GBP
Retailer 6£11,089 GBP
With Clarity£12,357 GBP

35 data points across 8 retailers

8 retailers£2,861 GBP to £12,357 GBP

A
Cheapest Retailer
-
£2,861 GBP
$3,834 USD
B+
Retailer 2
-
£4,107 GBP
View
B+
Retailer 3
-
£4,791 GBP
$6,420 USD
View
B+
Retailer 4
-
£5,084 GBP
€6,487 EUR
View
B+
Retailer 5
-
£6,770 GBP
View
Retailer 6
-
£8,367 GBP
$11,211 USD
View
Price last confirmed 8 days ago
B
Retailer 7
-
£11,089 GBP
$14,859 USD
View
Most Expensive
B
With Clarity
818684298 · Oct 31
£12,357 GBP
$16,557 USD
View
7 more retailers have this diamond
Prices start from £2,861 GBPSave up to £9,496 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
2.60ct Marquise
£2,861 GBP