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Marquise|Lab Grown|IGI

2.56ct E FL Marquise Lab Grown Diamond

EX • E/FL • IGI LG800677648

Shape and cutting style on the report: Marquise brilliant

Certificate IGI LG800677648

Diamond specifications and retailer prices

From $1,867 USD
As of October 30, 2026
Save $10,973 USD (85%) vs most expensive(unlock to see where)
15 retailers carry this diamond
Most expensive: $12,840 USD at Do Amore Diamonds · As of October 30, 2026
View at Do Amore Diamonds

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 LG800677648 or 800677648. Listed at 15 retailers as of October 30, 2026, with prices from $1,867 to $12,840, a $10,973 spread on the same certified stone. Do Amore Diamonds lists it at $12,840. 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
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle36.8°
Pavilion angle39.6°
OriginLab Grown
Grading LabIGI
CertificateIGI LG800677648
Dimensions13.66 × 7.17 × 4.49 mm
L/W Ratio1.91
Girdle conditionFaceted
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 IIa
Top View
13.66 mm7.17 mm2.56 ctE / FL
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG800677648
Side View
Table 63.0%Crown 36.8°Girdle: STK-THKPavilion 39.6°Culet: NoneDepth 62.6%

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 30
Current: $12,840 USD|Low: $1,700 USD|High: $14,240 USD|Avg: $4,502 USD|+4.9%
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
October 29, 2026
Retailer 10$1,867 USD
Retailer 15$2,031 USD
Retailer 7$2,114 USD
Retailer 12$2,234 USD
Retailer 5$2,339 USD
Retailer 9$2,340 USD
Retailer 14$3,285 USD
Retailer 11$3,393 USD
Retailer 13$3,642 USD
Retailer 2$4,012 USD
Retailer 4$4,390 USD
Retailer 3$5,966 USD
Retailer 8$6,862 USD
Retailer 6$8,830 USD
Do Amore Diamonds$12,840 USD

32 data points across 15 retailers

15 retailers$1,867 USD to $12,840 USD

A
Cheapest Retailer
-
$1,867 USD
A
Retailer 2
-
$2,031 USD
View
A
Retailer 3
-
$2,114 USD
View
Final sale: no returns
A
Retailer 4
-
$2,234 USD
View
A
Retailer 5
-
$2,339 USD
View
A
Retailer 6
-
$2,340 USD
View
A
Retailer 7
-
$3,285 USD
View
A
Retailer 8
-
$3,393 USD
View
A
Retailer 9
-
$3,642 USD
View
B+
Retailer 10
-
$4,012 USD
€3,821 EUR
View
B+
Retailer 11
-
$4,390 USD
View
B+
Retailer 12
-
$5,966 USD
View
B+
Retailer 13
-
$6,862 USD
£5,403 GBP
View
B
Retailer 14
-
$8,830 USD
View
Most Expensive
B
Do Amore Diamonds
27-495C13C12 · Oct 30
$12,840 USD
View
14 more retailers have this diamond
Prices start from $1,867 USDSave up to $10,973 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
$1,867 USD