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Cushion|Lab Grown|IGI

1.71ct D VS1 Cushion Lab Grown Diamond

ID • D/VS1 • IGI LG815692570

Shape and cutting style on the report: Cushion modified brilliant

Certificate IGI LG815692570

Diamond specifications and retailer prices

From €251 EUR
$280 USD
As of October 30, 2026
Save €1,325 EUR (84%) vs most expensive(unlock to see where)
16 retailers carry this diamond
Most expensive: €1,575 EUR at Brilliant Earth · As of October 31, 2026
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 D colour (colourless) and VS1 clarity (very-slightly-included), with a top-tier cut grade and certified by IGI LG815692570 or 815692570. Listed at 16 retailers as of October 30, 2026, with prices from €251 to €1,575, a €1,325 spread on the same certified stone. Brilliant Earth lists it at €1,575. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.71
Carat
D
Colour
VS1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle33.9°
Pavilion angle38.7°
OriginLab Grown
Grading LabIGI
CertificateIGI LG815692570
Dimensions8.02 × 6.42 × 4.38 mm
L/W Ratio1.25
Girdle conditionFaceted
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
8.02 mm6.42 mm1.71 ctD / VS1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG815692570
Side View
Table 67.0%Crown 33.9°Girdle: MED-THKPavilion 38.7°Culet: NoneDepth 68.2%

Caratlytics Score

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A
Excellent
Excellent quality and great value
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Price History

Last verified: Oct 30
Current: €1,575 EUR|Low: €247 EUR|High: €1,736 EUR|Avg: €696 EUR|-9.3%
Brilliant Earth
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
Retailer 13
Retailer 14
Retailer 15
Retailer 16
November 1, 2026
Retailer 6€251 EUR
Retailer 15€277 EUR
Retailer 14€310 EUR
Retailer 11€430 EUR
Retailer 7€465 EUR
Retailer 10€471 EUR
Retailer 12€477 EUR
Retailer 9€524 EUR
Retailer 4€582 EUR
Retailer 16€588 EUR
Retailer 13€647 EUR
Retailer 5€938 EUR
Retailer 3€1,092 EUR
Retailer 2€1,112 EUR
Retailer 8€1,211 EUR
Brilliant Earth€1,575 EUR

38 data points across 16 retailers

16 retailers€251 EUR to €1,575 EUR

A
Cheapest Retailer
-
€251 EUR
$280 USD
Final sale: no returns
Retailer 2
-
€277 EUR
$310 USD
View
Price last confirmed 7 days ago
Retailer 3
-
€310 EUR
£273 GBP
View
Price last confirmed 15 days ago
A
Retailer 4
-
€430 EUR
$480 USD
View
A
Retailer 5
-
€465 EUR
$519 USD
View
A
Retailer 6
-
€471 EUR
View
A
Retailer 7
-
€477 EUR
ZAR 8,605 ZAR
View
A
Retailer 8
-
€524 EUR
£461 GBP
View
A
Retailer 9
-
€582 EUR
$650 USD
View
A
Retailer 10
-
€588 EUR
$657 USD
View
A
Retailer 11
-
€647 EUR
A$1,112 AUD
View
B+
Retailer 12
-
€938 EUR
$1,048 USD
View
B
Retailer 13
-
€1,092 EUR
$1,220 USD
View
B
Retailer 14
-
€1,112 EUR
£978 GBP
View
B
Retailer 15
-
€1,211 EUR
$1,353 USD
View
Most Expensive
B
Brilliant Earth
20566399A · Oct 31
€1,575 EUR
$1,760 USD
View
15 more retailers have this diamond
Prices start from €251 EURSave up to €1,325 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
1.71ct Cushion
€251 EUR