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Marquise|Lab Grown|IGI

3.18ct E VVS1 Marquise Lab Grown Diamond

EX • E/VVS1 • IGI LG818696663

Shape and cutting style on the report: Marquise brilliant

Certificate IGI LG818696663

Diamond specifications and retailer prices

From €755 EUR
$843 USD
As of October 29, 2026
Save €2,332 EUR (76%) vs most expensive(unlock to see where)
17 retailers carry this diamond
Most expensive: €5,017 EUR at Rare Carat · As of October 12, 2026
View at Rare Carat

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), with a top-tier cut grade and certified by IGI LG818696663 or 818696663. Listed at 17 retailers as of October 29, 2026, with a 309% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. 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

3.18
Carat
E
Colour
VVS1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle38.4°
Pavilion angle39.5°
OriginLab Grown
Grading LabIGI
CertificateIGI LG818696663
Dimensions14.66 × 7.52 × 4.72 mm
L/W Ratio1.95
Girdle conditionFaceted
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
14.66 mm7.52 mm3.18 ctE / VVS1
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG818696663
Side View
Table 60.0%Crown 38.4°Girdle: STK-THKPavilion 39.5°Culet: NoneDepth 62.8%

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 29
Current: €1,754 EUR|Low: €755 EUR|High: €3,086 EUR|Avg: €1,795 EUR|-2.4%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
Retailer 13
Retailer 14
Retailer 15
October 31, 2026
Retailer 2€755 EUR
Retailer 4€940 EUR
Retailer 11€1,119 EUR
Retailer 10€1,121 EUR
Retailer 12€1,197 EUR
Retailer 3€1,435 EUR
Retailer 1€1,754 EUR
Retailer 14€1,779 EUR
Retailer 6€1,815 EUR
Retailer 9€1,859 EUR
Retailer 7€2,555 EUR
Retailer 8€2,613 EUR
Retailer 15€2,697 EUR
Retailer 13€2,793 EUR
Retailer 5€3,086 EUR

19 data points across 15 retailers

17 retailers€755 EUR to €3,086 EUR

A
Cheapest Retailer
-
€755 EUR
$843 USD
Final sale: no returns
A
Retailer 2
-
€940 EUR
$1,050 USD
View
A
Retailer 3
-
€1,119 EUR
$1,250 USD
View
A
Retailer 4
-
€1,121 EUR
$1,252 USD
View
A
Retailer 5
-
€1,197 EUR
£1,053 GBP
View
A
Retailer 6
-
€1,435 EUR
View
B+
Retailer 7
-
€1,754 EUR
A$3,014 AUD
View
B+
Retailer 8
-
€1,779 EUR
$1,987 USD
View
B+
Retailer 9
-
€1,815 EUR
ZAR 32,754 ZAR
View
B+
Retailer 10
-
€1,859 EUR
$2,077 USD
View
B+
Retailer 11
-
€2,555 EUR
$2,854 USD
View
B+
Retailer 12
-
€2,613 EUR
SGD 3,945 SGD
View
B+
Retailer 13
-
€2,697 EUR
$3,013 USD
View
B+
Retailer 14
-
€2,793 EUR
$3,120 USD
View
B
Retailer 15
-
€3,086 EUR
£2,715 GBP
View
Retailer 16
-
€3,322 EUR
A$5,709 AUD
View
Price last confirmed 22 days ago
Most Expensive
Rare Carat
CN169-74A · Oct 7
€5,017 EUR
$5,605 USD
View
Price last confirmed 19 days ago
16 more retailers have this diamond
Prices start from €755 EURSave up to €2,332 EUR

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
3.18ct Marquise
€755 EUR