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Cushion|Lab Grown|IGI

1.72ct F SI1 Cushion Lab Grown Diamond

ID • F/SI1 • IGI LG605362074

Shape and cutting style on the report: Square cushion brilliant

Certificate IGI LG605362074

Diamond specifications and retailer prices

From $1,656 AUD
£914 GBP
As of October 26, 2026
Save $1,240 AUD (43%) vs most expensive(unlock to see where)
5 retailers carry this diamond
Most expensive: $2,897 AUD at Do Amore Diamonds · As of October 27, 2026
View at Do Amore Diamonds

About this 1.72ct lab-grown cushion diamond

This 1.72ct lab-grown cushion sits in the one-and-a-half to two carat band, graded F colour (colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG605362074 or 605362074. Listed at 5 retailers as of October 26, 2026, with prices from $1,656 to $2,897, a $1,240 spread on the same certified stone. Do Amore Diamonds lists it at $2,897. 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

1.72
Carat
F
Colour
SI1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle35.8°
Pavilion angle40.5°
OriginLab Grown
Grading LabIGI
CertificateIGI LG605362074
Dimensions6.99 × 6.96 × 4.61 mm
L/W Ratio1.00
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
6.99 mm6.96 mm1.72 ctF / SI1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG605362074
Side View
Table 59.0%Crown 35.8°Girdle: MED-STKPavilion 40.5°Culet: NoneDepth 66.2%

Caratlytics Score

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B
Good
Decent quality, room for better deals
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Price History

Last verified: Oct 26
Current: $2,897 AUD|Low: $223 AUD|High: $3,168 AUD|Avg: $1,327 AUD|-1.0%
Do Amore Diamonds
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
October 25, 2026
Retailer 5$341 AUD
Retailer 3$644 AUD
Retailer 8$668 AUD
Retailer 9$803 AUD
Retailer 10$1,056 AUD
Retailer 6$1,129 AUD
Retailer 2$1,656 AUD
Retailer 4$1,784 AUD
Retailer 7$2,055 AUD
Do Amore Diamonds$2,897 AUD

8 data points across 10 retailers

5 retailers$1,656 AUD to $2,897 AUD

Retailer 1
-
$644 AUD
$451 USD
Price last confirmed 8 days ago
B
Retailer 2
-
$1,656 AUD
£914 GBP
View
Retailer 3
-
$1,784 AUD
$1,250 USD
View
Price last confirmed 10 days ago
Retailer 4
-
$2,055 AUD
$1,440 USD
View
Price last confirmed 7 days ago
Most Expensive
B
Do Amore Diamonds
27-9F1D0F7D9 · Oct 27
$2,897 AUD
$2,030 USD
View
4 more retailers have this diamond
Prices start from $1,656 AUDSave up to $1,240 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.

B
1.72ct Cushion
$1,656 AUD