CaratHunter
Plans
Marquise|Lab Grown|IGI

2.51ct E IF Marquise Lab Grown Diamond

EX • E/IF • IGI LG744514306

Shape and cutting style on the report: Marquise brilliant

Certificate IGI LG744514306

Diamond specifications and retailer prices

From £1,233 GBP
$1,652 USD
As of October 30, 2026
Save £7,253 GBP (85%) vs most expensive(unlock to see where)
19 retailers carry this diamond
Most expensive: £8,486 GBP at Do Amore Diamonds · As of October 31, 2026
View at Do Amore Diamonds

About this 2.51ct lab-grown marquise diamond

This 2.51ct 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 LG744514306 or 744514306. Listed at 19 retailers as of October 30, 2026, with prices from £1,233 to £8,486, a £7,253 spread on the same certified stone. Do Amore Diamonds lists it at £8,486. 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

2.51
Carat
E
Colour
IF
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle36.4°
Pavilion angle41.1°
OriginLab Grown
Grading LabIGI
CertificateIGI LG744514306
Dimensions13.64 × 7.02 × 4.51 mm
L/W Ratio1.94
Girdle conditionFaceted
Culet sizePointed
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
13.64 mm7.02 mm2.51 ctE / IF
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG744514306
Side View
Table 60.0%Crown 36.4°Girdle: MED-THKPavilion 41.1°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 30
Current: £8,486 GBP|Low: £1,208 GBP|High: £8,657 GBP|Avg: £3,343 GBP|-2.0%
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
Retailer 14
Retailer 15
Retailer 16
Retailer 17
Retailer 18
Retailer 19
November 1, 2026
Retailer 17£1,233 GBP
Retailer 5£1,342 GBP
Retailer 19£1,494 GBP
Retailer 13£1,597 GBP
Retailer 9£1,646 GBP
Retailer 15£1,649 GBP
Retailer 18£2,249 GBP
Retailer 3£2,466 GBP
Retailer 11£2,524 GBP
Retailer 16£2,548 GBP
Retailer 4£2,959 GBP
Retailer 14£3,232 GBP
Retailer 12£3,748 GBP
Retailer 7£3,959 GBP
Retailer 2£4,509 GBP
Retailer 8£5,037 GBP
Retailer 6£5,038 GBP
Retailer 10£7,304 GBP
Do Amore Diamonds£8,486 GBP

33 data points across 19 retailers

19 retailers£1,233 GBP to £8,486 GBP

A
Cheapest Retailer
-
£1,233 GBP
$1,652 USD
A
Retailer 2
-
£1,342 GBP
$1,798 USD
View
A
Retailer 3
-
£1,494 GBP
$2,002 USD
View
A
Retailer 4
-
£1,597 GBP
View
A
Retailer 5
-
£1,646 GBP
$2,206 USD
View
A
Retailer 6
-
£1,649 GBP
$2,210 USD
View
A
Retailer 7
-
£2,249 GBP
$3,013 USD
View
A
Retailer 8
-
£2,466 GBP
$3,304 USD
View
Retailer 9
-
£2,524 GBP
$3,382 USD
View
Price last confirmed 10 days ago
A
Retailer 10
-
£2,548 GBP
€3,252 EUR
View
B+
Retailer 11
-
£2,959 GBP
$3,965 USD
View
B+
Retailer 12
-
£3,232 GBP
$4,330 USD
View
B+
Retailer 13
-
£3,748 GBP
A$7,726 AUD
View
B+
Retailer 14
-
£3,959 GBP
$5,305 USD
View
B+
Retailer 15
-
£4,509 GBP
View
Retailer 16
-
£5,037 GBP
A$10,384 AUD
View
Price last confirmed 24 days ago
B+
Retailer 17
-
£5,038 GBP
$6,750 USD
View
Retailer 18
-
£5,262 GBP
$7,050 USD
View
Price last confirmed 39 days ago
Most Expensive
B
Do Amore Diamonds
27-0237B0F68 · Oct 31
£8,486 GBP
$11,370 USD
View
18 more retailers have this diamond
Prices start from £1,233 GBPSave up to £7,253 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
2.51ct Marquise
£1,233 GBP