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Cushion|Lab Grown|IGI

1.71ct D VS1 Cushion Lab Grown Diamond

EX • D/VS1 • IGI LG665439079

Shape and cutting style on the report: Square cushion brilliant

Certificate IGI LG665439079

Diamond specifications and retailer prices

From €289 EUR
$323 USD
As of November 1, 2026
Save €1,734 EUR (86%) vs most expensive(unlock to see where)
17 retailers carry this diamond
Most expensive: €2,023 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 LG665439079 or 665439079. Listed at 17 retailers as of October 31, 2026, with prices from €289 to €2,023, a €1,734 spread on the same certified stone. Brilliant Earth lists it at €2,023. 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
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle36.4°
Pavilion angle39.4°
OriginLab Grown
Grading LabIGI
CertificateIGI LG665439079
Dimensions6.86 × 6.79 × 4.66 mm
L/W Ratio1.01
Girdle conditionFaceted
Culet sizePointed
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
6.86 mm6.79 mm1.71 ctD / VS1
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG665439079
Side View
Table 61.0%Crown 36.4°Girdle: MED-STKPavilion 39.4°Culet: NoneDepth 68.6%

Caratlytics Score

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A
Excellent
Excellent quality and great value
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See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 1
Current: €2,023 EUR|Low: €244 EUR|High: €2,130 EUR|Avg: €801 EUR|-5.0%
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
Retailer 17
November 2, 2026
Retailer 7€289 EUR
Retailer 16€321 EUR
Retailer 15€359 EUR
Retailer 17€439 EUR
Retailer 12€478 EUR
Retailer 8€526 EUR
Retailer 10€554 EUR
Retailer 2€568 EUR
Retailer 5€593 EUR
Retailer 3€628 EUR
Retailer 13€746 EUR
Retailer 6€1,076 EUR
Retailer 14€1,208 EUR
Retailer 4€1,234 EUR
Retailer 11€1,287 EUR
Retailer 9€1,323 EUR
Brilliant Earth€2,023 EUR

40 data points across 17 retailers

17 retailers€289 EUR to €2,023 EUR

A
Cheapest Retailer
-
€289 EUR
$323 USD
Final sale: no returns
Retailer 2
-
€321 EUR
$359 USD
View
Price last confirmed 7 days ago
Retailer 3
-
€359 EUR
£316 GBP
View
Price last confirmed 16 days ago
A
Retailer 4
-
€439 EUR
$490 USD
View
A
Retailer 5
-
€478 EUR
View
A
Retailer 6
-
€526 EUR
$588 USD
View
A
Retailer 7
-
€554 EUR
ZAR 9,991 ZAR
View
A
Retailer 8
-
€568 EUR
£500 GBP
View
A
Retailer 9
-
€593 EUR
$663 USD
View
B+
Retailer 10
-
€628 EUR
$702 USD
View
B+
Retailer 11
-
€746 EUR
A$1,283 AUD
View
B
Retailer 12
-
€1,076 EUR
$1,202 USD
View
Retailer 13
-
€1,208 EUR
$1,350 USD
View
Price last confirmed 11 days ago
B
Retailer 14
-
€1,234 EUR
$1,379 USD
View
B
Retailer 15
-
€1,287 EUR
£1,132 GBP
View
B
Retailer 16
-
€1,323 EUR
$1,478 USD
View
Most Expensive
B
Brilliant Earth
12312888A · Oct 31
€2,023 EUR
$2,260 USD
View
16 more retailers have this diamond
Prices start from €289 EURSave up to €1,734 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
€289 EUR