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Marquise|Lab Grown|IGI

3.18ct E VVS1 Marquise Lab Grown Diamond

E/VVS1 • IGI LG750516998

Certificate IGI LG750516998

Diamond specifications and retailer prices

From $5,666 AUD
$3,980 USD
As of October 30, 2026
Save $4,057 AUD (42%) vs most expensive(unlock to see where)
3 retailers carry this diamond
Most expensive: $9,723 AUD at Zales · As of October 30, 2026
View at Zales

About this 3.18ct lab-grown marquise diamond

This 3.18ct lab-grown marquise sits in the three to five carat band, graded E colour (colourless) and VVS1 clarity (very-very-slightly-included) and certified by IGI LG750516998 or 750516998. Listed at 3 retailers as of October 30, 2026, with prices from $5,666 to $9,723, a $4,057 spread on the same certified stone. Zales lists it at $9,723. 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

3.18
Carat
E
Colour
VVS1
Clarity
-
Cut

Specifications

Cut
PolishExcellent
SymmetryExcellent
FluorescenceNone
OriginLab Grown
Grading LabIGI
CertificateIGI LG750516998
Dimensions15.52 × 7.79 mm
L/W Ratio1.99
Top View
15.52 mm7.79 mm3.18 ctE / VVS1
OriginLab Grown
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG750516998
Side View
Table 61.0%CrownGirdle: MED-STKPavilionCulet: NoneDepth 59.9%

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: $5,666 AUD|Low: $5,666 AUD|High: $11,076 AUD|Avg: $9,540 AUD|-33.7%
Retailer 1
Retailer 2
Zales
September 28, 2026
Retailer 1$5,666 AUD
Retailer 2$9,723 AUD
Zales$9,723 AUD

5 data points across 3 retailers

3 retailers$5,666 AUD to $9,723 AUD

B
Cheapest Retailer
-
$5,666 AUD
$3,980 USD
C
Retailer 2
-
$9,723 AUD
$6,830 USD
View
Most Expensive
C
Zales
527258318 · Oct 30
$9,723 AUD
$6,830 USD
View
2 more retailers have this diamond
Prices start from $5,666 AUDSave up to $4,057 AUD

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
3.18ct Marquise
$5,666 AUD