CaratHunter
Plans
Cushion|Lab Grown|IGI

1.78ct I VS1 Cushion Lab Grown Diamond

EX • I/VS1 • IGI LG12351907

Shape and cutting style on the report: Cushion modified brilliant

Certificate IGI LG12351907

Diamond specifications and retailer prices

From €557 EUR
$622 USD
As of October 30, 2026
Save €1,726 EUR (76%) vs most expensive(unlock to see where)
5 retailers carry this diamond
Most expensive: €2,282 EUR at Do Amore Diamonds · As of October 31, 2026
View at Do Amore Diamonds

About this 1.78ct lab-grown cushion diamond

This 1.78ct 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 LG12351907 or 12351907. Listed at 5 retailers as of October 30, 2026, with prices from €557 to €2,282, a €1,726 spread on the same certified stone. Do Amore Diamonds lists it at €2,282. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.78
Carat
I
Color
VS1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle37°
Pavilion angle39.1°
OriginLab Grown
Grading LabIGI
CertificateIGI LG12351907
Dimensions7.99 × 6.61 × 4.45 mm
L/W Ratio1.21
Culet sizePointed
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process and may include post-growth treatment. Type IIa
Top View
7.99 mm6.61 mm1.78 ctI / VS1
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG12351907
Side View
Table 63.0%Crown 37°Girdle: THN-UNDPavilion 39.1°Culet: NoneDepth 67.3%

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 30
Current: €2,282 EUR|Low: €479 EUR|High: €2,444 EUR|Avg: €1,242 EUR|-6.6%
Do Amore Diamonds
Retailer 2
Retailer 3
Retailer 4
Retailer 5
October 28, 2026
Retailer 4€557 EUR
Retailer 2€559 EUR
Retailer 5€583 EUR
Retailer 3€1,513 EUR
Do Amore Diamonds€2,282 EUR

23 data points across 5 retailers

5 retailers€557 EUR to €2,282 EUR

A
Cheapest Retailer
-
€557 EUR
$622 USD
A
Retailer 2
-
€559 EUR
$625 USD
View
A
Retailer 3
-
€583 EUR
$651 USD
View
B
Retailer 4
-
€1,513 EUR
£1,331 GBP
View
Most Expensive
B
Do Amore Diamonds
7-1428655 · Oct 31
€2,282 EUR
$2,550 USD
View
4 more retailers have this diamond
Prices start from €557 EURSave up to €1,726 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
1.78ct Cushion
€557 EUR