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Marquise|Lab Grown|IGI

2.56ct D IF Marquise Lab Grown Diamond

D/IF • IGI LG744515120

Shape and cutting style on the report: Marquise brilliant

Certificate IGI LG744515120

Diamond specifications and retailer prices

From £4,814 GBP
$6,450 USD
As of October 31, 2026
Save £4,338 GBP (47%) vs most expensive(unlock to see where)
3 retailers carry this diamond
Most expensive: £9,152 GBP at Novita Diamonds · As of November 1, 2026
View at Novita Diamonds

About this 2.56ct lab-grown marquise diamond

This 2.56ct lab-grown marquise sits in the two to three carat band, graded D colour (colourless) and IF clarity (flawless or internally-flawless) and certified by IGI LG744515120 or 744515120. Listed at 3 retailers as of October 31, 2026, with prices from £4,814 to £9,152, a £4,338 spread on the same certified stone. Novita Diamonds lists it at £9,152. Cut grade matters more than carat or clarity for visible brilliance. If you can shift budget toward an Excellent or Ideal cut, do it before chasing higher colour or clarity.

The 4Cs

2.56
Carat
D
Colour
IF
Clarity
-
Cut

Specifications

Cut
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle35.8°
Pavilion angle37.2°
OriginLab Grown
Grading LabIGI
CertificateIGI LG744515120
Dimensions14.10 × 7.19 × 4.27 mm
L/W Ratio1.96
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
14.10 mm7.19 mm2.56 ctD / IF
OriginLab Grown
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG744515120
Side View
Table 59.0%Crown 35.8°Girdle: MED-THKPavilion 37.2°Culet: NoneDepth 59.4%

Caratlytics Score

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B
Good
Decent quality, room for better deals
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Price History

Last verified: Oct 31
Current: £9,152 GBP|Low: £1,496 GBP|High: £13,873 GBP|Avg: £5,831 GBP|+2.7%
Novita Diamonds
Retailer 2
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Retailer 12
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Retailer 17
November 1, 2026
Retailer 4£1,496 GBP
Retailer 16£2,183 GBP
Retailer 14£2,546 GBP
Retailer 12£2,705 GBP
Retailer 9£2,773 GBP
Retailer 13£2,778 GBP
Retailer 11£3,231 GBP
Retailer 17£3,392 GBP
Retailer 10£3,522 GBP
Retailer 2£4,814 GBP
Retailer 6£5,265 GBP
Retailer 8£7,865 GBP
Novita Diamonds£9,152 GBP
Retailer 5£10,485 GBP
Retailer 3£10,833 GBP
Retailer 15£12,225 GBP
Retailer 7£13,873 GBP

6 data points across 17 retailers

3 retailers£4,814 GBP to £9,152 GBP

Retailer 1
-
£3,522 GBP
$4,720 USD
Price last confirmed 104 days ago
B
Retailer 2
-
£4,814 GBP
$6,450 USD
View
Most Expensive
B
Novita Diamonds
cert_744515120 · Nov 1
£9,152 GBP
A$18,865 AUD
View
2 more retailers have this diamond
Prices start from £4,814 GBPSave up to £4,338 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.

B
2.56ct Marquise
£4,814 GBP