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Cushion|Lab Grown|IGI

3.15ct I VS1 Cushion Lab Grown Diamond

EX • I/VS1 • IGI LG594312934

Shape and cutting style on the report: Square cushion modified brilliant

Certificate IGI LG594312934

Diamond specifications and retailer prices

From €759 EUR
$848 USD
As of November 1, 2026
Save €1,497 EUR (66%) vs most expensive(unlock to see where)
7 retailers carry this diamond
Most expensive: €2,256 EUR at MOH London · As of October 29, 2026
View at MOH London

About this 3.15ct lab-grown cushion diamond

This 3.15ct 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 LG594312934 or 594312934. Listed at 7 retailers as of October 29, 2026, with prices from €759 to €2,256, a €1,497 spread on the same certified stone. MOH London lists it at €2,256. 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

3.15
Carat
I
Color
VS1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle35°
Pavilion angle39.5°
OriginLab Grown
Grading LabIGI
CertificateIGI LG594312934
Dimensions8.62 × 8.40 × 5.64 mm
L/W Ratio1.03
Girdle conditionFaceted
Culet sizePointed
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process and may include post-growth treatment.
Top View
8.62 mm8.40 mm3.15 ctI / VS1
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG594312934
Side View
Table 61.0%Crown 35°Girdle: STK-THKPavilion 39.5°Culet: NoneDepth 67.1%

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 1
Current: €2,256 EUR|Low: €546 EUR|High: €2,271 EUR|Avg: €1,171 EUR|+0.5%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
October 28, 2026
Retailer 9€546 EUR
Retailer 8€720 EUR
Retailer 6€759 EUR
Retailer 5€765 EUR
Retailer 3€824 EUR
Retailer 2€1,167 EUR
Retailer 4€1,674 EUR
Retailer 7€1,858 EUR
MOH London€2,256 EUR

19 data points across 9 retailers

7 retailers€759 EUR to €2,256 EUR

A
Cheapest Retailer
-
€759 EUR
$848 USD
B+
Retailer 2
-
€765 EUR
$855 USD
View
A
Retailer 3
-
€824 EUR
$921 USD
View
A
Retailer 4
-
€1,167 EUR
ZAR 21,068 ZAR
View
B+
Retailer 5
-
€1,674 EUR
$1,870 USD
View
B+
Retailer 6
-
€1,858 EUR
$2,076 USD
View
Most Expensive
B+
MOH London
LG594312934 · Oct 29
€2,256 EUR
£1,985 GBP
View
6 more retailers have this diamond
Prices start from €759 EURSave up to €1,497 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
3.15ct Cushion
€759 EUR