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Cushion|Lab Grown|IGI

1.71ct H SI1 Cushion Lab Grown Diamond

EX • H/SI1 • IGI LG515227082

Shape and cutting style on the report: Square cushion modified brilliant

Certificate IGI LG515227082

Diamond specifications and retailer prices

From $757 NZD
$425 USD
As of October 29, 2026
Save $3,429 NZD (82%) vs most expensive(unlock to see where)
10 retailers carry this diamond
Most expensive: $4,187 NZD at Do Amore Diamonds · As of October 29, 2026
View at Do Amore Diamonds

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 H colour (near-colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG515227082 or 515227082. Listed at 10 retailers as of October 29, 2026, with prices from $757 to $4,187, a $3,429 spread on the same certified stone. Do Amore Diamonds lists it at $4,187. SI-grade stones are eye-clean roughly 60 to 70% of the time at this carat range. Check the inclusion plot on the cert and ask the retailer for high-resolution video before buying.

The 4Cs

1.71
Carat
H
Colour
SI1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle35°
Pavilion angle40.6°
OriginLab Grown
Grading LabIGI
CertificateIGI LG515227082
Dimensions6.88 × 6.83 × 4.68 mm
L/W Ratio1.01
Girdle conditionFaceted
Culet sizePointed
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process and may include post-growth treatment Type IIa
Top View
6.88 mm6.83 mm1.71 ctH / SI1
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG515227082
Side View
Table 62.0%Crown 35°Girdle: STK-VTKPavilion 40.6°Culet: NoneDepth 68.5%

Caratlytics Score

How it works →
A
Excellent
Excellent quality and great value
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Oct 29
Current: $4,187 NZD|Low: $757 NZD|High: $4,187 NZD|Avg: $1,813 NZD|+17.5%
Do Amore Diamonds
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
October 29, 2026
Retailer 3$757 NZD
Retailer 10$757 NZD
Retailer 6$811 NZD
Retailer 2$856 NZD
Retailer 8$1,180 NZD
Retailer 7$1,559 NZD
Retailer 9$2,072 NZD
Retailer 4$2,588 NZD
Retailer 5$2,761 NZD
Do Amore Diamonds$4,187 NZD

24 data points across 10 retailers

10 retailers$757 NZD to $4,187 NZD

A
Cheapest Retailer
-
$757 NZD
$425 USD
B+
Retailer 2
-
$757 NZD
$425 USD
View
A
Retailer 3
-
$811 NZD
$455 USD
View
B+
Retailer 4
-
$856 NZD
£378 GBP
View
A
Retailer 5
-
$1,180 NZD
$662 USD
View
A
Retailer 6
-
$1,559 NZD
$875 USD
View
B+
Retailer 7
-
$2,072 NZD
$1,163 USD
View
B
Retailer 8
-
$2,588 NZD
£1,144 GBP
View
B
Retailer 9
-
$2,761 NZD
$1,550 USD
View
Most Expensive
B
Do Amore Diamonds
27-0CB569BFC · Oct 29
$4,187 NZD
$2,350 USD
View
9 more retailers have this diamond
Prices start from $757 NZDSave up to $3,429 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
$757 NZD