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Cushion|Lab Grown|IGI

1.51ct I VS1 Cushion Lab Grown Diamond

EX • I/VS1 • IGI LG649405817

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

Certificate IGI LG649405817

Diamond specifications and retailer prices

From €315 EUR
$352 USD
As of October 30, 2026
Save €850 EUR (73%) vs most expensive(unlock to see where)
8 retailers carry this diamond
Most expensive: €1,165 EUR at MOH London · As of October 29, 2026
View at MOH London

About this 1.51ct lab-grown cushion diamond

This 1.51ct lab-grown cushion sits in the one-and-a-half to two carat band, graded I colour (near-colourless) and VS1 clarity (very-slightly-included), with a top-tier cut grade and certified by IGI LG649405817 or 649405817. Listed at 8 retailers as of October 29, 2026, with prices from €315 to €1,165, a €850 spread on the same certified stone. MOH London lists it at €1,165. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.51
Carat
I
Color
VS1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle37.7°
Pavilion angle39.4°
OriginLab Grown
Grading LabIGI
CertificateIGI LG649405817
Dimensions6.56 × 6.53 × 4.47 mm
L/W Ratio1.00
Girdle conditionFaceted
Culet sizePointed
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
6.56 mm6.53 mm1.51 ctI / VS1
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG649405817
Side View
Table 60.0%Crown 37.7°Girdle: MED-THKPavilion 39.4°Culet: NoneDepth 68.5%

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 30
Current: €1,165 EUR|Low: €314 EUR|High: €1,173 EUR|Avg: €704 EUR|+0.6%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
October 29, 2026
Retailer 2€315 EUR
Retailer 4€443 EUR
Retailer 5€487 EUR
Retailer 3€707 EUR
Retailer 7€734 EUR
Retailer 6€1,081 EUR
MOH London€1,165 EUR

14 data points across 7 retailers

8 retailers€315 EUR to €1,165 EUR

A
Cheapest Retailer
-
€315 EUR
$352 USD
A
Retailer 2
-
€443 EUR
$495 USD
View
A
Retailer 3
-
€487 EUR
$544 USD
View
Retailer 4
-
€707 EUR
$790 USD
View
Price last confirmed 10 days ago
Retailer 5
-
€716 EUR
$800 USD
View
Price last confirmed 83 days ago
Retailer 6
-
€725 EUR
$810 USD
View
Price last confirmed 26 days ago
B
Retailer 7
-
€1,081 EUR
$1,207 USD
View
Most Expensive
B
MOH London
LG649405817 · Oct 29
€1,165 EUR
£1,025 GBP
View
7 more retailers have this diamond
Prices start from €315 EURSave up to €850 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
1.51ct Cushion
€315 EUR