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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 €749 EUR
$837 USD
As of October 31, 2026
Save €2,528 EUR (77%) 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 31, 2026, with a 337% 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
Color
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
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Oct 31
Current: €935 EUR|Low: €749 EUR|High: €3,277 EUR|Avg: €1,812 EUR|-3.7%
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
Retailer 16
November 1, 2026
Retailer 13€749 EUR
Retailer 1€935 EUR
Retailer 9€1,116 EUR
Retailer 4€1,119 EUR
Retailer 15€1,237 EUR
Retailer 5€1,435 EUR
Retailer 16€1,754 EUR
Retailer 11€1,777 EUR
Retailer 7€1,815 EUR
Retailer 3€1,859 EUR
Retailer 8€2,555 EUR
Retailer 2€2,613 EUR
Retailer 12€2,679 EUR
Retailer 10€2,775 EUR
Retailer 6€3,086 EUR
Retailer 14€3,277 EUR

19 data points across 16 retailers

17 retailers€749 EUR to €3,277 EUR

A
Cheapest Retailer
-
€749 EUR
$837 USD
Final sale: no returns
A
Retailer 2
-
€935 EUR
$1,045 USD
View
A
Retailer 3
-
€1,116 EUR
$1,247 USD
View
A
Retailer 4
-
€1,119 EUR
$1,250 USD
View
A
Retailer 5
-
€1,237 EUR
£1,088 GBP
View
A
Retailer 6
-
€1,435 EUR
View
B+
Retailer 7
-
€1,754 EUR
A$3,014 AUD
View
B+
Retailer 8
-
€1,777 EUR
$1,985 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
-
€2,679 EUR
$2,993 USD
View
B+
Retailer 14
-
€2,775 EUR
$3,100 USD
View
B
Retailer 15
-
€3,086 EUR
£2,715 GBP
View
B
Retailer 16
-
€3,277 EUR
A$5,632 AUD
View
Most Expensive
Rare Carat
CN169-74A · Oct 7
€5,017 EUR
$5,605 USD
View
Price last confirmed 20 days ago
16 more retailers have this diamond
Prices start from €749 EURSave up to €2,528 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
€749 EUR