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Marquise|Lab Grown|IGI

2.51ct E IF Marquise Lab Grown Diamond

ID • E/IF • IGI LG658477011

Shape and cutting style on the report: Marquise brilliant

Certificate IGI LG658477011

Diamond specifications and retailer prices

From £730 GBP
$978 USD
As of October 27, 2026
Save £3,211 GBP (81%) vs most expensive(unlock to see where)
34 retailers carry this diamond
Most expensive: £4,627 GBP at Novita Diamonds · As of October 5, 2026
View at Novita 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 LG658477011 or 658477011. Listed at 34 retailers as of October 27, 2026, with a 440% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. 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
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle34.4°
Pavilion angle40°
OriginLab Grown
Grading LabIGI
CertificateIGI LG658477011
Dimensions14.75 × 7.08 × 4.23 mm
L/W Ratio2.08
Girdle conditionFaceted
Culet sizePointed
Top View
14.75 mm7.08 mm2.51 ctE / IF
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG658477011
Side View
Table 64.0%Crown 34.4°Girdle: MED-STKPavilion 40°Culet: NoneDepth 59.7%

Caratlytics Score

How it works →
A
Excellent
Excellent quality and great value
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See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Oct 27
Current: £4,627 GBP|Low: £793 GBP|High: £6,112 GBP|Avg: £2,514 GBP|+7.0%
Novita 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
November 1, 2026
Retailer 5£817 GBP
Retailer 9£826 GBP
Retailer 17£846 GBP
Retailer 15£1,222 GBP
Retailer 11£1,318 GBP
Retailer 18£1,587 GBP
Retailer 16£1,680 GBP
Retailer 14£1,891 GBP
Retailer 3£1,944 GBP
Retailer 12£2,009 GBP
Retailer 7£2,354 GBP
Retailer 6£2,648 GBP
Retailer 8£2,865 GBP
Retailer 2£2,870 GBP
Retailer 4£2,976 GBP
Retailer 10£3,202 GBP
Retailer 13£3,941 GBP
Novita Diamonds£4,627 GBP

39 data points across 18 retailers

34 retailers£730 GBP to £3,941 GBP

A
Cheapest Retailer
-
£730 GBP
$978 USD
Retailer 2
-
£793 GBP
$1,063 USD
View
Price last confirmed 30 days ago
A
Retailer 3
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£794 GBP
$1,064 USD
View
A
Retailer 4
-
£817 GBP
$1,095 USD
View
Final sale: no returns
Retailer 5
-
£826 GBP
$1,107 USD
View
Price last confirmed 24 days ago
Retailer 6
-
£826 GBP
$1,107 USD
View
Price last confirmed 13 days ago
Retailer 7
-
£846 GBP
$1,134 USD
View
Price last confirmed 7 days ago
Retailer 8
-
£899 GBP
$1,204 USD
View
Price last confirmed 18 days ago
Retailer 9
-
£945 GBP
$1,266 USD
View
Price last confirmed 32 days ago
Retailer 10
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£958 GBP
$1,284 USD
View
Price last confirmed 29 days ago
Retailer 11
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£958 GBP
$1,284 USD
View
Price last confirmed 28 days ago
Retailer 12
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£958 GBP
$1,284 USD
View
Price last confirmed 15 days ago
Retailer 13
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£958 GBP
$1,284 USD
View
Price last confirmed 18 days ago
Retailer 14
-
£1,004 GBP
$1,345 USD
View
Price last confirmed 34 days ago
Retailer 15
-
£1,056 GBP
$1,415 USD
View
Price last confirmed 34 days ago
A
Retailer 16
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£1,222 GBP
$1,638 USD
View
A
Retailer 17
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£1,318 GBP
View
Retailer 18
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£1,587 GBP
$2,126 USD
View
Price last confirmed 7 days ago
A
Retailer 19
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£1,680 GBP
$2,251 USD
View
Retailer 20
-
£1,796 GBP
$2,407 USD
View
Price last confirmed 32 days ago
Retailer 21
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£1,796 GBP
$2,407 USD
View
Price last confirmed 28 days ago
A
Retailer 22
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£1,891 GBP
€2,413 EUR
View
A
Retailer 23
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£1,944 GBP
$2,605 USD
View
A
Retailer 24
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£2,009 GBP
A$4,142 AUD
View
A
Retailer 25
-
£2,354 GBP
View
A
Retailer 26
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£2,541 GBP
$3,404 USD
View
A
Retailer 27
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£2,648 GBP
$3,548 USD
View
A
Retailer 28
-
£2,865 GBP
SGD 5,187 SGD
View
A
Retailer 29
-
£2,870 GBP
View
B+
Retailer 30
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£2,976 GBP
$3,987 USD
View
B+
Retailer 31
-
£3,052 GBP
View
Retailer 32
-
£3,202 GBP
$4,290 USD
View
Price last confirmed 28 days ago
B+
Retailer 33
-
£3,941 GBP
$5,280 USD
View
Most Expensive
Novita Diamonds
cert_658477011 · Oct 5
£4,627 GBP
A$9,537 AUD
View
Price last confirmed 27 days ago
33 more retailers have this diamond
Prices start from £730 GBPSave up to £3,211 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
£730 GBP