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 $280 USD
As of October 30, 2026
Save $1,480 USD (84%) vs most expensive(unlock to see where)
16 retailers carry this diamond
Most expensive: $1,760 USD at Brilliant Earth · As of October 29, 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 29, 2026, with prices from $280 to $1,760, a $1,480 spread on the same certified stone. Brilliant Earth lists it at $1,760. 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
Color
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: $1,760 USD|Low: $276 USD|High: $1,970 USD|Avg: $788 USD|-10.7%
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
October 30, 2026
Retailer 6$280 USD
Retailer 15$310 USD
Retailer 13$347 USD
Retailer 14$485 USD
Retailer 7$519 USD
Retailer 9$530 USD
Retailer 11$533 USD
Retailer 2$590 USD
Retailer 4$650 USD
Retailer 16$657 USD
Retailer 12$723 USD
Retailer 5$1,048 USD
Retailer 3$1,220 USD
Retailer 10$1,250 USD
Retailer 8$1,353 USD
Brilliant Earth$1,760 USD

38 data points across 16 retailers

16 retailers$280 USD to $1,760 USD

A
Cheapest Retailer
-
$280 USD
Final sale: no returns
A
Retailer 2
-
$310 USD
View
Retailer 3
-
$347 USD
£273 GBP
View
Price last confirmed 13 days ago
A
Retailer 4
-
$485 USD
View
A
Retailer 5
-
$519 USD
View
A
Retailer 6
-
$530 USD
€505 EUR
View
A
Retailer 7
-
$533 USD
ZAR 8,605 ZAR
View
A
Retailer 8
-
$590 USD
£465 GBP
View
A
Retailer 9
-
$650 USD
View
A
Retailer 10
-
$657 USD
View
A
Retailer 11
-
$723 USD
A$1,112 AUD
View
B+
Retailer 12
-
$1,048 USD
View
B
Retailer 13
-
$1,220 USD
View
B
Retailer 14
-
$1,250 USD
£984 GBP
View
B
Retailer 15
-
$1,353 USD
View
Most Expensive
B
Brilliant Earth
20566399A · Oct 29
$1,760 USD
View
15 more retailers have this diamond
Prices start from $280 USDSave up to $1,480 USD

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
$280 USD