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 $3,980 USD
As of October 30, 2026
Save $2,850 USD (42%) vs most expensive(unlock to see where)
3 retailers carry this diamond
Most expensive: $6,830 USD 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 $3,980 to $6,830, a $2,850 spread on the same certified stone. Zales lists it at $6,830. 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
Color
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: $3,980 USD|Low: $3,980 USD|High: $7,780 USD|Avg: $6,702 USD|-33.7%
Retailer 1
Retailer 2
Zales
September 28, 2026
Retailer 1$3,980 USD
Retailer 2$6,830 USD
Zales$6,830 USD

5 data points across 3 retailers

3 retailers$3,980 USD to $6,830 USD

B
Cheapest Retailer
-
$3,980 USD
C
Retailer 2
-
$6,830 USD
View
Most Expensive
C
Zales
527258318 · Oct 30
$6,830 USD
View
2 more retailers have this diamond
Prices start from $3,980 USDSave up to $2,850 USD

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
$3,980 USD