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Marquise|Lab Grown|IGI

2.56ct E FL Marquise Lab Grown Diamond

ID • E/FL • IGI LG790644856

Shape and cutting style on the report: Marquise brilliant

Certificate IGI LG790644856

Diamond specifications and retailer prices

From $3,115 USD
As of October 30, 2026
Save $9,489 USD (75%) vs most expensive(unlock to see where)
21 retailers carry this diamond
Most expensive: $12,604 USD at Taylor and Hart · As of October 30, 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 E colour (colourless) and FL clarity (flawless or internally-flawless), with a top-tier cut grade and certified by IGI LG790644856 or 790644856. Listed at 21 retailers as of October 30, 2026, with prices from $3,115 to $12,604, a $9,489 spread on the same certified stone. Taylor and Hart lists it at $12,604. 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
E
Color
FL
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle38.4°
Pavilion angle39.9°
OriginLab Grown
Grading LabIGI
CertificateIGI LG790644856
Dimensions14.24 × 7.13 × 4.29 mm
L/W Ratio2.00
Girdle conditionFaceted
Culet sizePointed
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
14.24 mm7.13 mm2.56 ctE / FL
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG790644856
Side View
Table 63.0%Crown 38.4°Girdle: STK-THKPavilion 39.9°Culet: NoneDepth 60.2%

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 30
Current: $3,665 USD|Low: $2,990 USD|High: $12,604 USD|Avg: $6,339 USD|-1.0%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
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Retailer 9
Retailer 10
Retailer 11
Retailer 12
Retailer 13
Retailer 14
Retailer 15
Retailer 16
Retailer 17
Retailer 18
Retailer 19
Taylor and Hart
October 30, 2026
Retailer 3$3,115 USD
Retailer 7$3,401 USD
Retailer 4$3,487 USD
Retailer 5$3,613 USD
Retailer 9$3,613 USD
Retailer 8$3,630 USD
Retailer 1$3,665 USD
Retailer 18$3,770 USD
Retailer 6$4,515 USD
Retailer 12$4,794 USD
Retailer 17$5,085 USD
Retailer 15$5,170 USD
Retailer 10$6,233 USD
Retailer 16$6,359 USD
Retailer 2$9,006 USD
Retailer 14$9,206 USD
Retailer 13$9,319 USD
Retailer 19$10,508 USD
Retailer 11$12,150 USD
Taylor and Hart$12,604 USD

36 data points across 20 retailers

21 retailers$3,115 USD to $12,604 USD

A
Cheapest Retailer
-
$3,115 USD
A
Retailer 2
-
$3,389 USD
View
A
Retailer 3
-
$3,401 USD
View
A
Retailer 4
-
$3,487 USD
View
Final sale: no returns
Retailer 5
-
$3,613 USD
View
Price last confirmed 18 days ago
A
Retailer 6
-
$3,613 USD
View
A
Retailer 7
-
$3,630 USD
View
A
Retailer 8
-
$3,665 USD
£2,886 GBP
View
A
Retailer 9
-
$3,770 USD
View
B+
Retailer 10
-
$4,515 USD
View
B+
Retailer 11
-
$4,794 USD
£3,775 GBP
View
B+
Retailer 12
-
$5,085 USD
View
B+
Retailer 13
-
$5,170 USD
View
B+
Retailer 14
-
$6,233 USD
£4,908 GBP
View
B+
Retailer 15
-
$6,359 USD
€6,056 EUR
View
B
Retailer 16
-
$9,006 USD
View
B
Retailer 17
-
$9,206 USD
£7,249 GBP
View
B
Retailer 18
-
$9,319 USD
ZAR 150,553 ZAR
View
B
Retailer 19
-
$10,508 USD
View
B
Retailer 20
-
$12,150 USD
SGD 16,419 SGD
View
Most Expensive
B
Taylor and Hart
N59CBHO · Oct 30
$12,604 USD
View
20 more retailers have this diamond
Prices start from $3,115 USDSave up to $9,489 USD

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
$3,115 USD