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Marquise|Lab Grown|IGI

6.18ct G VS2 Marquise Lab Grown Diamond

ID • G/VS2

Diamond specifications and retailer prices

From $1,832 CAD
£1,033 GBP
As of October 30, 2026
Save $4,573 CAD (71%) vs most expensive(unlock to see where)
2 retailers carry this diamond
Most expensive: $6,405 CAD at Blue Nile · As of October 31, 2026
View at Blue Nile

About this 6.18ct lab-grown marquise diamond

This 6.18ct lab-grown marquise sits in the over five carat band, graded G colour (near-colourless) and VS2 clarity (very-slightly-included), with a top-tier cut grade and certified by IGI. Listed at 2 retailers as of October 30, 2026, with prices from $1,832 to $6,405, a $4,573 spread on the same certified stone. Blue Nile lists it at $6,405. 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

6.18
Carat
G
Color
VS2
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
OriginLab Grown
Grading LabIGI
Dimensions19.43 × 9.60 × 5.83 mm
L/W Ratio2.02
Top View
19.43 mm9.60 mm6.18 ctG / VS2
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI
Side View
Table 58.0%CrownGirdle: MED-STKPavilionCulet: NoneDepth 60.7%

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: $6,405 CAD|Low: $1,382 CAD|High: $6,405 CAD|Avg: $2,960 CAD
Blue Nile
Retailer 2
Retailer 3
Retailer 4
Retailer 5
October 30, 2026
Retailer 4$1,382 CAD
Retailer 5$1,503 CAD
Retailer 2$1,832 CAD
Retailer 3$3,315 CAD
Blue Nile$6,405 CAD

32 data points across 5 retailers

2 retailers$1,832 CAD to $6,405 CAD

A
Cheapest Retailer
-
$1,832 CAD
£1,033 GBP
Most Expensive
B
Blue Nile
26529112 · Oct 31
$6,405 CAD
$4,585 USD
View
1 more retailer has this diamond
Prices start from $1,832 CADSave up to $4,573 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
6.18ct Marquise
$1,832 CAD