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Marquise|Lab Grown|IGI

8.57ct I VS1 Marquise Lab Grown Diamond

I/VS1 • IGI LG644481798

Certificate IGI LG644481798

Diamond specifications and retailer prices

From $8,717 CAD
$6,240 USD
As of October 30, 2026
Save $1,746 CAD (17%) vs most expensive(unlock to see where)
3 retailers carry this diamond
Most expensive: $10,463 CAD at Kay Jewelers · As of October 30, 2026
View at Kay Jewelers

About this 8.57ct lab-grown marquise diamond

This 8.57ct lab-grown marquise sits in the over five carat band, graded I colour (near-colourless) and VS1 clarity (very-slightly-included) and certified by IGI LG644481798 or 644481798. Listed at 3 retailers as of October 30, 2026, with prices from $8,717 to $10,463, a $1,746 spread on the same certified stone. Kay Jewelers lists it at $10,463. Cut grade matters more than carat or clarity for visible brilliance. If you can shift budget toward an Excellent or Ideal cut, do it before chasing higher colour or clarity.

The 4Cs

8.57
Carat
I
Color
VS1
Clarity
-
Cut

Specifications

Cut
PolishExcellent
SymmetryExcellent
FluorescenceNone
OriginLab Grown
Grading LabIGI
CertificateIGI LG644481798
Dimensions22.87 × 10.62 mm
L/W Ratio2.15
Top View
22.87 mm10.62 mm8.57 ctI / VS1
OriginLab Grown
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG644481798
Side View
Table 60.0%CrownGirdle: MED-STKPavilionCulet: NoneDepth 58.9%

Caratlytics Score

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B
Good
Decent quality, room for better deals
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Oct 30
Current: $10,463 CAD|Low: $8,228 CAD|High: $12,796 CAD|Avg: $10,689 CAD|-18.2%
Kay Jewelers
Retailer 2
Retailer 3
April 27, 2026
Retailer 3$8,717 CAD
Kay Jewelers$10,463 CAD
Retailer 2$10,463 CAD

8 data points across 3 retailers

3 retailers$8,717 CAD to $10,463 CAD

B
Cheapest Retailer
-
$8,717 CAD
$6,240 USD
B
Retailer 2
-
$10,463 CAD
$7,490 USD
View
Most Expensive
B
Kay Jewelers
252024242 · Oct 30
$10,463 CAD
$7,490 USD
View
2 more retailers have this diamond
Prices start from $8,717 CADSave up to $1,746 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.

B
8.57ct Marquise
$8,717 CAD