CaratHunter
Plans
Cushion|Lab Grown|IGI

3.18ct I VS1 Cushion Lab Grown Diamond

ID • I/VS1 • IGI LG831678522

Shape and cutting style on the report: Cushion brilliant

Certificate IGI LG831678522

Diamond specifications and retailer prices

From €1,347 EUR
As of November 5, 2026
Save €3,548 EUR (72%) vs most expensive(unlock to see where)
11 retailers carry this diamond
Most expensive: €4,895 EUR at Taylor and Hart · As of November 4, 2026
View at Taylor and Hart

About this 3.18ct lab-grown cushion diamond

This 3.18ct lab-grown cushion sits in the three to five carat band, graded I colour (near-colourless) and VS1 clarity (very-slightly-included), with a top-tier cut grade and certified by IGI LG831678522 or 831678522. Listed at 11 retailers as of November 4, 2026, with prices from €1,347 to €4,895, a €3,548 spread on the same certified stone. Taylor and Hart lists it at €4,895. 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
I
Colour
VS1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle37.5°
Pavilion angle35.1°
OriginLab Grown
Grading LabIGI
CertificateIGI LG831678522
Dimensions10.91 × 7.38 × 4.85 mm
L/W Ratio1.48
Girdle conditionFaceted
Culet sizeLarge
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
10.91 mm7.38 mm3.18 ctI / VS1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG831678522
Side View
Table 49.0%Crown 37.5°Girdle: STK-VTKPavilion 35.1°Culet: LargeDepth 65.7%

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: Nov 5
Current: €1,816 EUR|Low: €1,311 EUR|High: €5,341 EUR|Avg: €2,520 EUR
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Taylor and Hart
November 4, 2026
Retailer 6€1,347 EUR
Retailer 2€1,471 EUR
Retailer 9€1,517 EUR
Retailer 7€1,546 EUR
Retailer 5€1,665 EUR
Retailer 1€1,816 EUR
Retailer 3€2,022 EUR
Retailer 4€3,237 EUR
Retailer 8€3,359 EUR
Retailer 10€4,249 EUR
Taylor and Hart€4,895 EUR

32 data points across 11 retailers

11 retailers€1,347 EUR to €4,895 EUR

A
Cheapest Retailer
-
€1,347 EUR
B+
Retailer 2
-
€1,471 EUR
View
Retailer 3
-
€1,517 EUR
View
Price last confirmed 24 days ago
B+
Retailer 4
-
€1,546 EUR
View
B+
Retailer 5
-
€1,665 EUR
View
B+
Retailer 6
-
€1,816 EUR
View
B+
Retailer 7
-
€2,022 EUR
View
B
Retailer 8
-
€3,237 EUR
View
B
Retailer 9
-
€3,359 EUR
View
B
Retailer 10
-
€4,249 EUR
View
Most Expensive
B
Taylor and Hart
ELF52IJ · Nov 4
€4,895 EUR
$5,494 USD
View
10 more retailers have this diamond
Prices start from €1,347 EURSave up to €3,548 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 Cushion
€1,347 EUR