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Marquise|Lab Grown|IGI

2.55ct E IF Marquise Lab Grown Diamond

EX • E/IF • IGI LG843654767

Shape and cutting style on the report: Marquise brilliant

Certificate IGI LG843654767

Diamond specifications and retailer prices

From £897 GBP
$1,202 USD
As of October 30, 2026
Save £2,749 GBP (75%) vs most expensive(unlock to see where)
20 retailers carry this diamond
Most expensive: £3,646 GBP at Taylor and Hart · As of October 31, 2026
View at Taylor and Hart

About this 2.55ct lab-grown marquise diamond

This 2.55ct lab-grown marquise sits in the two to three carat band, graded E colour (colourless) and IF clarity (flawless or internally-flawless), with a top-tier cut grade and certified by IGI LG843654767 or 843654767. Listed at 20 retailers as of October 30, 2026, with prices from £897 to £3,646, a £2,749 spread on the same certified stone. Taylor and Hart lists it at £3,646. 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

2.55
Carat
E
Colour
IF
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle39.5°
Pavilion angle40.3°
OriginLab Grown
Grading LabIGI
CertificateIGI LG843654767
Dimensions14.15 × 7.08 × 4.31 mm
L/W Ratio2.00
Girdle conditionFaceted
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
14.15 mm7.08 mm2.55 ctE / IF
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG843654767
Side View
Table 62.0%Crown 39.5°Girdle: MED-STKPavilion 40.3°Culet: NoneDepth 60.9%

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: £3,343 GBP|Low: £897 GBP|High: £3,646 GBP|Avg: £2,076 GBP|-0.1%
Retailer 1
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Retailer 19
Taylor and Hart
November 1, 2026
Retailer 7£897 GBP
Retailer 2£976 GBP
Retailer 8£1,004 GBP
Retailer 18£1,040 GBP
Retailer 12£1,052 GBP
Retailer 15£1,161 GBP
Retailer 11£1,267 GBP
Retailer 10£1,489 GBP
Retailer 13£1,510 GBP
Retailer 19£1,950 GBP
Retailer 16£1,993 GBP
Retailer 5£2,052 GBP
Retailer 14£2,470 GBP
Retailer 17£2,685 GBP
Retailer 6£2,986 GBP
Retailer 3£3,176 GBP
Retailer 4£3,277 GBP
Retailer 1£3,343 GBP
Retailer 9£3,485 GBP
Taylor and Hart£3,646 GBP

7 data points across 20 retailers

20 retailers£897 GBP to £3,646 GBP

A
Cheapest Retailer
-
£897 GBP
$1,202 USD
A
Retailer 2
-
£976 GBP
$1,308 USD
View
A
Retailer 3
-
£1,004 GBP
$1,345 USD
View
Final sale: no returns
A
Retailer 4
-
£1,040 GBP
$1,394 USD
View
A
Retailer 5
-
£1,052 GBP
View
A
Retailer 6
-
£1,161 GBP
$1,555 USD
View
A
Retailer 7
-
£1,267 GBP
$1,698 USD
View
A
Retailer 8
-
£1,489 GBP
$1,995 USD
View
A
Retailer 9
-
£1,510 GBP
View
A
Retailer 10
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£1,950 GBP
$2,613 USD
View
A
Retailer 11
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£1,993 GBP
$2,671 USD
View
A
Retailer 12
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£2,052 GBP
$2,750 USD
View
A
Retailer 13
-
£2,470 GBP
A$5,092 AUD
View
A
Retailer 14
-
£2,685 GBP
ZAR 58,110 ZAR
View
B+
Retailer 15
-
£2,986 GBP
$4,001 USD
View
B+
Retailer 16
-
£3,176 GBP
$4,255 USD
View
B+
Retailer 17
-
£3,277 GBP
$4,391 USD
View
B+
Retailer 18
-
£3,343 GBP
View
B+
Retailer 19
-
£3,485 GBP
SGD 6,311 SGD
View
Most Expensive
B+
Taylor and Hart
9Q8TXPG · Oct 31
£3,646 GBP
$4,886 USD
View
19 more retailers have this diamond
Prices start from £897 GBPSave up to £2,749 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
2.55ct Marquise
£897 GBP