CaratHunter
Plans
Marquise|Lab Grown|IGI

2.51ct H VS1 Marquise Lab Grown Diamond

EX • H/VS1 • IGI LG840663879

Shape and cutting style on the report: Marquise brilliant

Certificate IGI LG840663879

Diamond specifications and retailer prices

From $2,640 CAD
$1,890 USD
As of October 31, 2026
2 retailers carry this diamond
Most expensive: $2,640 CAD at Brilliant Earth
View at Brilliant Earth

About this 2.51ct lab-grown marquise diamond

This 2.51ct lab-grown marquise sits in the two to three carat band, graded H colour (near-colourless) and VS1 clarity (very-slightly-included), with a top-tier cut grade and certified by IGI LG840663879 or 840663879. Listed at 2 retailers as of October 31, 2026. 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
H
Color
VS1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle37.8°
Pavilion angle40.2°
OriginLab Grown
Grading LabIGI
CertificateIGI LG840663879
Dimensions13.44 × 7.16 × 4.50 mm
L/W Ratio1.88
Girdle conditionFaceted
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
13.44 mm7.16 mm2.51 ctH / VS1
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG840663879
Side View
Table 59.0%Crown 37.8°Girdle: MED-STKPavilion 40.2°Culet: NoneDepth 62.8%

Caratlytics Score

How it works →
B+
Very Good
Strong quality and value balance
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Oct 31
Current: $2,640 CAD|Low: $933 CAD|High: $2,780 CAD|Avg: $1,794 CAD|-5.0%
Brilliant Earth
Retailer 2
October 18, 2026
Retailer 2$933 CAD
Brilliant Earth$2,640 CAD

14 data points across 2 retailers

2 retailers

Retailer 1
-
$933 CAD
£526 GBP
Price last confirmed 13 days ago
Most Expensive
B+
Brilliant Earth
21703342A · Oct 31
$2,640 CAD
$1,890 USD
View
1 more retailer has this diamond

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+
2.51ct Marquise
$2,640 CAD