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Marquise|Lab Grown|IGI

2.51ct E IF Marquise Lab Grown Diamond

ID • E/IF • IGI LG818684305

Shape and cutting style on the report: Marquise brilliant

Certificate IGI LG818684305

Diamond specifications and retailer prices

From $3,855 CAD
$2,760 USD
As of October 29, 2026
Save $10,953 CAD (74%) vs most expensive(unlock to see where)
13 retailers carry this diamond
Most expensive: $14,809 CAD at With Clarity · As of October 31, 2026
View at With Clarity

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 LG818684305 or 818684305. Listed at 13 retailers as of October 29, 2026, with prices from $3,855 to $14,809, a $10,953 spread on the same certified stone. With Clarity lists it at $14,809. 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
Color
IF
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle35.1°
Pavilion angle39.8°
OriginLab Grown
Grading LabIGI
CertificateIGI LG818684305
Dimensions13.93 × 7.11 × 4.47 mm
L/W Ratio1.96
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 II
Top View
13.93 mm7.11 mm2.51 ctE / IF
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG818684305
Side View
Table 59.0%Crown 35.1°Girdle: MED-STKPavilion 39.8°Culet: NoneDepth 62.9%

Caratlytics Score

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

Price History

Last verified: Oct 29
Current: $5,261 CAD|Low: $4,272 CAD|High: $14,809 CAD|Avg: $8,490 CAD|-1.6%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
With Clarity
October 31, 2026
Retailer 10$4,272 CAD
Retailer 11$4,667 CAD
Retailer 1$5,261 CAD
Retailer 8$5,769 CAD
Retailer 5$6,093 CAD
Retailer 6$6,412 CAD
Retailer 7$10,018 CAD
Retailer 3$10,028 CAD
Retailer 4$10,282 CAD
Retailer 9$11,203 CAD
Retailer 2$13,339 CAD
With Clarity$14,809 CAD

33 data points across 12 retailers

13 retailers$3,855 CAD to $14,809 CAD

A
Cheapest Retailer
-
$3,855 CAD
$2,760 USD
A
Retailer 2
-
$4,272 CAD
$3,058 USD
View
A
Retailer 3
-
$4,667 CAD
HK$26,100 HKD
View
A
Retailer 4
-
$5,261 CAD
£2,965 GBP
View
B+
Retailer 5
-
$5,769 CAD
$4,130 USD
View
B+
Retailer 6
-
$6,093 CAD
€4,154 EUR
View
B+
Retailer 7
-
$6,412 CAD
$4,590 USD
View
Retailer 8
-
$10,018 CAD
A$11,033 AUD
View
Price last confirmed 23 days ago
Retailer 9
-
$10,028 CAD
$7,179 USD
View
Price last confirmed 8 days ago
B+
Retailer 10
-
$10,282 CAD
£5,796 GBP
View
B
Retailer 11
-
$11,203 CAD
$8,020 USD
View
B
Retailer 12
-
$13,339 CAD
$9,549 USD
View
Most Expensive
B
With Clarity
818684305 · Oct 31
$14,809 CAD
$10,601 USD
View
12 more retailers have this diamond
Prices start from $3,855 CADSave up to $10,953 CAD

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
$3,855 CAD