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Marquise|Lab Grown|IGI

2.63ct E FL Marquise Lab Grown Diamond

ID • E/FL • IGI LG818684393

Shape and cutting style on the report: Marquise brilliant

Certificate IGI LG818684393

Diamond specifications and retailer prices

From £2,894 GBP
$3,878 USD
As of October 31, 2026
Save £9,605 GBP (77%) vs most expensive(unlock to see where)
9 retailers carry this diamond
Most expensive: £12,500 GBP at With Clarity · As of October 31, 2026
View at With Clarity

About this 2.63ct lab-grown marquise diamond

This 2.63ct 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 LG818684393 or 818684393. Listed at 9 retailers as of October 31, 2026, with prices from £2,894 to £12,500, a £9,605 spread on the same certified stone. With Clarity lists it at £12,500. 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

2.63
Carat
E
Colour
FL
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle36.6°
Pavilion angle40.3°
OriginLab Grown
Grading LabIGI
CertificateIGI LG818684393
Dimensions13.99 × 7.19 × 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
13.99 mm7.19 mm2.63 ctE / FL
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG818684393
Side View
Table 60.0%Crown 36.6°Girdle: MED-STKPavilion 40.3°Culet: NoneDepth 63.6%

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: £4,154 GBP|Low: £2,894 GBP|High: £12,500 GBP|Avg: £6,990 GBP|-2.6%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
With Clarity
November 1, 2026
Retailer 4£2,894 GBP
Retailer 1£4,154 GBP
Retailer 5£4,845 GBP
Retailer 3£5,143 GBP
Retailer 6£6,769 GBP
Retailer 2£6,844 GBP
Retailer 8£8,464 GBP
Retailer 7£11,218 GBP
With Clarity£12,500 GBP

35 data points across 9 retailers

9 retailers£2,894 GBP to £12,500 GBP

A
Cheapest Retailer
-
£2,894 GBP
$3,878 USD
B+
Retailer 2
-
£4,154 GBP
View
B+
Retailer 3
-
£4,845 GBP
$6,492 USD
View
B+
Retailer 4
-
£5,143 GBP
€6,563 EUR
View
B
Retailer 5
-
£6,769 GBP
$9,070 USD
View
B+
Retailer 6
-
£6,844 GBP
View
Retailer 7
-
£8,464 GBP
$11,341 USD
View
Price last confirmed 8 days ago
B
Retailer 8
-
£11,218 GBP
$15,031 USD
View
Most Expensive
B
With Clarity
818684393 · Oct 31
£12,500 GBP
$16,748 USD
View
8 more retailers have this diamond
Prices start from £2,894 GBPSave up to £9,605 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
2.63ct Marquise
£2,894 GBP