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Cushion|Lab Grown|IGI

1.71ct F SI1 Cushion Lab Grown Diamond

ID • F/SI1 • IGI LG529264291

Shape and cutting style on the report: Cushion brilliant

Certificate IGI LG529264291

Diamond specifications and retailer prices

From €1,079 EUR
$1,210 USD
As of November 2, 2026
1 retailer carries this diamond
Only listing: €1,079 EUR at Brilliant Earth
Only one retailer lists this diamond right now, and it is shown above, so there is nothing to unlock. Similar diamonds are carried by several retailers.
View at Brilliant Earth

About this 1.71ct lab-grown cushion diamond

This 1.71ct 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 LG529264291 or 529264291. Listed at a single retailer as of November 2, 2026. If it later appears at another store, Carat Hunter will surface the price comparison automatically. 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

1.71
Carat
F
Color
SI1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle39.8°
Pavilion angle38.2°
OriginLab Grown
Grading LabIGI
CertificateIGI LG529264291
Dimensions7.74 × 6.60 × 4.27 mm
L/W Ratio1.17
Girdle conditionFaceted
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
7.74 mm6.60 mm1.71 ctF / SI1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG529264291
Side View
Table 64.0%Crown 39.8°Girdle: MED-THKPavilion 38.2°Culet: NoneDepth 64.7%

Caratlytics Score

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B
Good
Decent quality, room for better deals
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Price History

Last verified: Nov 2
Current: €1,079 EUR|Low: €380 EUR|High: €1,881 EUR|Avg: €946 EUR|-36.6%
Brilliant Earth
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
October 4, 2026
Retailer 5€380 EUR
Retailer 2€510 EUR
Retailer 4€657 EUR
Retailer 3€689 EUR
Retailer 7€818 EUR
Brilliant Earth€1,079 EUR
Retailer 6€1,881 EUR

56 data points across 7 retailers

1 retailer

B
Brilliant Earth
5899097B · Nov 2
€1,079 EUR
$1,210 USD
View

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
1.71ct Cushion
€1,079 EUR