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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 $497 NZD
$280 USD
As of November 1, 2026
Save $2,626 NZD (84%) vs most expensive(unlock to see where)
16 retailers carry this diamond
Most expensive: $3,123 NZD 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 31, 2026, with prices from $497 to $3,123, a $2,626 spread on the same certified stone. Brilliant Earth lists it at $3,123. 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

How it works →
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: $3,123 NZD|Low: $490 NZD|High: $3,442 NZD|Avg: $1,381 NZD|-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$497 NZD
Retailer 15$550 NZD
Retailer 14$615 NZD
Retailer 11$852 NZD
Retailer 7$921 NZD
Retailer 10$933 NZD
Retailer 12$945 NZD
Retailer 9$1,038 NZD
Retailer 4$1,153 NZD
Retailer 16$1,166 NZD
Retailer 13$1,282 NZD
Retailer 5$1,860 NZD
Retailer 3$2,165 NZD
Retailer 2$2,204 NZD
Retailer 8$2,401 NZD
Brilliant Earth$3,123 NZD

37 data points across 16 retailers

16 retailers$497 NZD to $3,123 NZD

A
Cheapest Retailer
-
$497 NZD
$280 USD
Final sale: no returns
Retailer 2
-
$550 NZD
$310 USD
View
Price last confirmed 7 days ago
Retailer 3
-
$615 NZD
£273 GBP
View
Price last confirmed 16 days ago
A
Retailer 4
-
$852 NZD
$480 USD
View
A
Retailer 5
-
$921 NZD
$519 USD
View
A
Retailer 6
-
$933 NZD
€501 EUR
View
A
Retailer 7
-
$945 NZD
ZAR 8,605 ZAR
View
A
Retailer 8
-
$1,038 NZD
£461 GBP
View
A
Retailer 9
-
$1,153 NZD
$650 USD
View
A
Retailer 10
-
$1,166 NZD
$657 USD
View
A
Retailer 11
-
$1,282 NZD
A$1,112 AUD
View
B+
Retailer 12
-
$1,860 NZD
$1,048 USD
View
B
Retailer 13
-
$2,165 NZD
$1,220 USD
View
B
Retailer 14
-
$2,204 NZD
£978 GBP
View
B
Retailer 15
-
$2,401 NZD
$1,353 USD
View
Most Expensive
B
Brilliant Earth
20566399A · Oct 31
$3,123 NZD
$1,760 USD
View
15 more retailers have this diamond
Prices start from $497 NZDSave up to $2,626 NZD

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
$497 NZD