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Cushion|Lab Grown|IGI

1.72ct F SI1 Cushion Lab Grown Diamond

ID • F/SI1

Diamond specifications and retailer prices

From €331 EUR
£292 GBP
As of October 27, 2026
Save €616 EUR (65%) vs most expensive(unlock to see where)
2 retailers carry this diamond
Most expensive: €947 EUR at Blue Nile · As of October 27, 2026
View at Blue Nile

About this 1.72ct lab-grown cushion diamond

This 1.72ct lab-grown cushion sits in the one-and-a-half to two carat band, graded F colour (colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by IGI. Listed at 2 retailers as of October 27, 2026, with prices from €331 to €947, a €616 spread on the same certified stone. Blue Nile lists it at €947. SI-grade stones are eye-clean roughly 60 to 70% of the time at this carat range. Check the inclusion plot on the cert and ask the retailer for high-resolution video before buying.

The 4Cs

1.72
Carat
F
Colour
SI1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
OriginLab Grown
Grading LabIGI
Dimensions6.99 × 6.96 × 0.00 mm
L/W Ratio1.00
Top View
6.99 mm6.96 mm1.72 ctF / SI1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI
Side View
Table 59.0%CrownGirdle: MED-STKPavilionCulet: NoneDepth 66.2%

Caratlytics Score

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A
Excellent
Excellent quality and great value
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Price History

Last verified: Oct 27
Current: €947 EUR|Low: €330 EUR|High: €947 EUR|Avg: €617 EUR
Blue Nile
Retailer 2
October 27, 2026
Retailer 2€331 EUR
Blue Nile€947 EUR

28 data points across 2 retailers

2 retailers€331 EUR to €947 EUR

A
Cheapest Retailer
-
€331 EUR
£292 GBP
Most Expensive
B
Blue Nile
20097566 · Oct 27
€947 EUR
$1,062 USD
View
1 more retailer has this diamond
Prices start from €331 EURSave up to €616 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
1.72ct Cushion
€331 EUR