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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 $399 AUD
$280 USD
As of October 30, 2026
Save $2,107 AUD (84%) vs most expensive(unlock to see where)
16 retailers carry this diamond
Most expensive: $2,506 AUD 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 $399 to $2,506, a $2,107 spread on the same certified stone. Brilliant Earth lists it at $2,506. 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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See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Oct 30
Current: $2,506 AUD|Low: $393 AUD|High: $2,762 AUD|Avg: $1,093 AUD|-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
October 31, 2026
Retailer 6$399 AUD
Retailer 15$441 AUD
Retailer 14$494 AUD
Retailer 10$683 AUD
Retailer 7$739 AUD
Retailer 2$749 AUD
Retailer 12$758 AUD
Retailer 9$840 AUD
Retailer 4$925 AUD
Retailer 16$935 AUD
Retailer 13$1,029 AUD
Retailer 5$1,492 AUD
Retailer 3$1,737 AUD
Retailer 11$1,779 AUD
Retailer 8$1,926 AUD
Brilliant Earth$2,506 AUD

38 data points across 16 retailers

16 retailers$399 AUD to $2,506 AUD

A
Cheapest Retailer
-
$399 AUD
$280 USD
Final sale: no returns
A
Retailer 2
-
$441 AUD
$310 USD
View
Retailer 3
-
$494 AUD
£273 GBP
View
Price last confirmed 14 days ago
A
Retailer 4
-
$683 AUD
$480 USD
View
A
Retailer 5
-
$739 AUD
$519 USD
View
A
Retailer 6
-
$749 AUD
€501 EUR
View
A
Retailer 7
-
$758 AUD
ZAR 8,605 ZAR
View
A
Retailer 8
-
$840 AUD
£465 GBP
View
A
Retailer 9
-
$925 AUD
$650 USD
View
A
Retailer 10
-
$935 AUD
$657 USD
View
A
Retailer 11
-
$1,029 AUD
View
B+
Retailer 12
-
$1,492 AUD
$1,048 USD
View
B
Retailer 13
-
$1,737 AUD
$1,220 USD
View
B
Retailer 14
-
$1,779 AUD
£984 GBP
View
B
Retailer 15
-
$1,926 AUD
$1,353 USD
View
Most Expensive
B
Brilliant Earth
20566399A · Oct 29
$2,506 AUD
$1,760 USD
View
15 more retailers have this diamond
Prices start from $399 AUDSave up to $2,107 AUD

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
$399 AUD