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Marquise|Lab Grown|IGI

2.56ct D IF Marquise Lab Grown Diamond

EX • D/IF • IGI LG768630291

Shape and cutting style on the report: Marquise brilliant

Certificate IGI LG768630291

Diamond specifications and retailer prices

From £2,039 GBP
$2,732 USD
As of October 31, 2026
Save £7,975 GBP (80%) vs most expensive(unlock to see where)
14 retailers carry this diamond
Most expensive: £10,014 GBP at Taylor and Hart · As of October 31, 2026
View at Taylor and Hart

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), with a top-tier cut grade and certified by IGI LG768630291 or 768630291. Listed at 14 retailers as of October 31, 2026, with prices from £2,039 to £10,014, a £7,975 spread on the same certified stone. Taylor and Hart lists it at £10,014. 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
D
Colour
IF
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle36.4°
Pavilion angle40.9°
OriginLab Grown
Grading LabIGI
CertificateIGI LG768630291
Dimensions13.85 × 7.08 × 4.51 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
13.85 mm7.08 mm2.56 ctD / IF
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG768630291
Side View
Table 60.0%Crown 36.4°Girdle: MED-STKPavilion 40.9°Culet: NoneDepth 63.7%

Caratlytics Score

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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 31
Current: £7,243 GBP|Low: £2,039 GBP|High: £8,266 GBP|Avg: £5,278 GBP
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
Retailer 13
November 1, 2026
Retailer 4£2,039 GBP
Retailer 3£2,558 GBP
Retailer 11£3,470 GBP
Retailer 6£3,807 GBP
Retailer 12£4,336 GBP
Retailer 9£4,615 GBP
Retailer 10£4,911 GBP
Retailer 2£6,039 GBP
Retailer 13£6,536 GBP
Retailer 1£7,243 GBP
Retailer 8£7,372 GBP
Retailer 5£7,566 GBP
Retailer 7£8,148 GBP

42 data points across 13 retailers

14 retailers£2,039 GBP to £10,014 GBP

A
Cheapest Retailer
-
£2,039 GBP
$2,732 USD
A
Retailer 2
-
£2,558 GBP
$3,427 USD
View
B+
Retailer 3
-
£3,470 GBP
$4,650 USD
View
B+
Retailer 4
-
£3,573 GBP
HK$37,400 HKD
View
B+
Retailer 5
-
£3,807 GBP
View
B+
Retailer 6
-
£4,336 GBP
$5,810 USD
View
B+
Retailer 7
-
£4,615 GBP
€5,889 EUR
View
B+
Retailer 8
-
£4,911 GBP
$6,580 USD
View
B
Retailer 9
-
£6,536 GBP
$8,757 USD
View
B
Retailer 10
-
£7,243 GBP
View
B
Retailer 11
-
£7,372 GBP
ZAR 159,574 ZAR
View
Retailer 12
-
£7,566 GBP
$10,138 USD
View
Price last confirmed 8 days ago
B
Retailer 13
-
£8,148 GBP
A$16,797 AUD
View
Most Expensive
B
Taylor and Hart
9517ATH · Oct 31
£10,014 GBP
$13,417 USD
View
13 more retailers have this diamond
Prices start from £2,039 GBPSave up to £7,975 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
£2,039 GBP