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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 $11,090 NZD
$6,240 USD
As of November 2, 2026
Save $2,222 NZD (17%) vs most expensive(unlock to see where)
3 retailers carry this diamond
Most expensive: $13,312 NZD at Kay Jewelers · As of November 2, 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 November 2, 2026, with prices from $11,090 to $13,312, a $2,222 spread on the same certified stone. Kay Jewelers lists it at $13,312. 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
Colour
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: Nov 2
Current: $13,312 NZD|Low: $10,468 NZD|High: $16,280 NZD|Avg: $13,600 NZD|-18.2%
Kay Jewelers
Retailer 2
Retailer 3
April 27, 2026
Retailer 3$11,090 NZD
Kay Jewelers$13,312 NZD
Retailer 2$13,312 NZD

8 data points across 3 retailers

3 retailers$11,090 NZD to $13,312 NZD

B
Cheapest Retailer
-
$11,090 NZD
$6,240 USD
B
Retailer 2
-
$13,312 NZD
$7,490 USD
View
Most Expensive
B
Kay Jewelers
252024242 · Nov 2
$13,312 NZD
$7,490 USD
View
2 more retailers have this diamond
Prices start from $11,090 NZDSave up to $2,222 NZD

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
$11,090 NZD