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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 $544 AUD
$382 USD
As of November 1, 2026
Save $2,802 AUD (84%) vs most expensive(unlock to see where)
10 retailers carry this diamond
Most expensive: $3,345 AUD at Do Amore Diamonds · As of November 2, 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 November 1, 2026, with prices from $544 to $3,345, a $2,802 spread on the same certified stone. Do Amore Diamonds lists it at $3,345. 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: Nov 1
Current: $3,345 AUD|Low: $544 AUD|High: $3,345 AUD|Avg: $1,437 AUD|+17.5%
Do Amore Diamonds
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
November 2, 2026
Retailer 5$544 AUD
Retailer 7$648 AUD
Retailer 2$680 AUD
Retailer 4$690 AUD
Retailer 9$943 AUD
Retailer 8$1,246 AUD
Retailer 10$1,656 AUD
Retailer 3$1,865 AUD
Retailer 6$2,068 AUD
Do Amore Diamonds$3,345 AUD

28 data points across 10 retailers

10 retailers$544 AUD to $3,345 AUD

B+
Cheapest Retailer
-
$544 AUD
$382 USD
A
Retailer 2
-
$648 AUD
$455 USD
View
B+
Retailer 3
-
$680 AUD
£376 GBP
View
A
Retailer 4
-
$690 AUD
$485 USD
View
A
Retailer 5
-
$943 AUD
$662 USD
View
B+
Retailer 6
-
$1,246 AUD
$875 USD
View
B+
Retailer 7
-
$1,656 AUD
$1,163 USD
View
B
Retailer 8
-
$1,865 AUD
$1,310 USD
View
B
Retailer 9
-
$2,068 AUD
£1,144 GBP
View
Most Expensive
B
Do Amore Diamonds
27-0CB569BFC · Nov 2
$3,345 AUD
$2,350 USD
View
9 more retailers have this diamond
Prices start from $544 AUDSave up to $2,802 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
$544 AUD