Cushion|Lab Grown|IGI

1.78ct D VVS1 Cushion Lab Grown Diamond

VG • D/VVS1 • IGI LG760528563

Certificate IGI LG760528563

Diamond specifications and retailer prices

From €1,909 EUR
$2,133 USD
As of October 31, 2026
Save €695 EUR (27%) vs most expensive(unlock to see where)
4 retailers carry this diamond
Most expensive: €2,605 EUR at Kay Jewelers · As of November 1, 2026
View at Kay Jewelers

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 D colour (colourless) and VVS1 clarity (very-very-slightly-included), with a very-good cut grade and certified by IGI LG760528563 or 760528563. Listed at 4 retailers as of October 31, 2026, with prices from €1,909 to €2,605, a €695 spread on the same certified stone. Kay Jewelers lists it at €2,605. Cut grade matters more than carat or clarity for visible brilliance. If you can shift budget toward an Excellent or Ideal cut, do it before chasing higher colour or clarity.

The 4Cs

1.78
Carat
D
Color
VVS1
Clarity
Very Good
Cut

Specifications

CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
OriginLab Grown
Grading LabIGI
CertificateIGI LG760528563
Dimensions7.99 × 6.53 × 4.62 mm
L/W Ratio1.22
Top View
7.99 mm6.53 mm1.78 ctD / VVS1
OriginLab Grown
CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG760528563
Side View
Table 57.0%CrownGirdle: MED-THKPavilionCulet: NoneDepth 70.8%

Caratlytics Score

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B
Good
Decent quality, room for better deals
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Price History

Last verified: Oct 31
Current: €2,605 EUR|Low: €1,909 EUR|High: €2,873 EUR|Avg: €2,552 EUR|-9.3%
Kay Jewelers
Retailer 2
Retailer 3
Retailer 4
September 26, 2026
Retailer 2€1,909 EUR
Retailer 4€2,166 EUR
Kay Jewelers€2,605 EUR
Retailer 3€2,605 EUR

7 data points across 4 retailers

4 retailers€1,909 EUR to €2,605 EUR

B
Cheapest Retailer
-
€1,909 EUR
$2,133 USD
B
Retailer 2
-
€2,166 EUR
$2,420 USD
View
B
Retailer 3
-
€2,605 EUR
$2,910 USD
View
Most Expensive
B
Kay Jewelers
257653374 · Nov 1
€2,605 EUR
$2,910 USD
View
3 more retailers have this diamond
Prices start from €1,909 EURSave up to €695 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.

B
1.78ct Cushion
€1,909 EUR