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Marquise|Lab Grown|IGI

2.56ct E FL Marquise Lab Grown Diamond

EX • E/FL • IGI LG800677648

Shape and cutting style on the report: Marquise brilliant

Certificate IGI LG800677648

Diamond specifications and retailer prices

From £1,393 GBP
$1,867 USD
As of October 30, 2026
Save £8,189 GBP (85%) vs most expensive(unlock to see where)
15 retailers carry this diamond
Most expensive: £9,583 GBP at Do Amore Diamonds · As of November 1, 2026
View at Do Amore Diamonds

About this 2.56ct lab-grown marquise diamond

This 2.56ct 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 LG800677648 or 800677648. Listed at 15 retailers as of October 30, 2026, with prices from £1,393 to £9,583, a £8,189 spread on the same certified stone. Do Amore Diamonds lists it at £9,583. 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

2.56
Carat
E
Colour
FL
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle36.8°
Pavilion angle39.6°
OriginLab Grown
Grading LabIGI
CertificateIGI LG800677648
Dimensions13.66 × 7.17 × 4.49 mm
L/W Ratio1.91
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 IIa
Top View
13.66 mm7.17 mm2.56 ctE / FL
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG800677648
Side View
Table 63.0%Crown 36.8°Girdle: STK-THKPavilion 39.6°Culet: NoneDepth 62.6%

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 30
Current: £9,583 GBP|Low: £1,269 GBP|High: £10,628 GBP|Avg: £3,360 GBP|+4.9%
Do Amore Diamonds
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
Retailer 13
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Retailer 15
October 29, 2026
Retailer 10£1,393 GBP
Retailer 15£1,516 GBP
Retailer 7£1,578 GBP
Retailer 12£1,667 GBP
Retailer 5£1,746 GBP
Retailer 9£1,746 GBP
Retailer 14£2,452 GBP
Retailer 11£2,532 GBP
Retailer 13£2,718 GBP
Retailer 2£2,994 GBP
Retailer 4£3,276 GBP
Retailer 3£4,453 GBP
Retailer 8£5,121 GBP
Retailer 6£6,590 GBP
Do Amore Diamonds£9,583 GBP

32 data points across 15 retailers

15 retailers£1,393 GBP to £9,583 GBP

A
Cheapest Retailer
-
£1,393 GBP
$1,867 USD
A
Retailer 2
-
£1,516 GBP
$2,031 USD
View
A
Retailer 3
-
£1,578 GBP
$2,114 USD
View
Final sale: no returns
A
Retailer 4
-
£1,667 GBP
$2,234 USD
View
A
Retailer 5
-
£1,746 GBP
$2,339 USD
View
A
Retailer 6
-
£1,746 GBP
$2,340 USD
View
A
Retailer 7
-
£2,452 GBP
$3,285 USD
View
A
Retailer 8
-
£2,532 GBP
$3,393 USD
View
A
Retailer 9
-
£2,718 GBP
$3,642 USD
View
B+
Retailer 10
-
£2,994 GBP
€3,821 EUR
View
B+
Retailer 11
-
£3,276 GBP
$4,390 USD
View
B+
Retailer 12
-
£4,453 GBP
$5,966 USD
View
B+
Retailer 13
-
£5,121 GBP
View
B
Retailer 14
-
£6,590 GBP
$8,830 USD
View
Most Expensive
B
Do Amore Diamonds
27-495C13C12 · Nov 1
£9,583 GBP
$12,840 USD
View
14 more retailers have this diamond
Prices start from £1,393 GBPSave up to £8,189 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
2.56ct Marquise
£1,393 GBP