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Cushion|Lab Grown|IGI

1.37ct D SI1 Cushion Lab Grown Diamond

ID • D/SI1 • IGI LG523282964

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

Certificate IGI LG523282964

Diamond specifications and retailer prices

From $251 AUD
$176 USD
As of October 30, 2026
Save $1,899 AUD (88%) vs most expensive(unlock to see where)
12 retailers carry this diamond
Most expensive: $2,150 AUD at Do Amore Diamonds · As of October 31, 2026
View at Do Amore Diamonds

About this 1.37ct lab-grown cushion diamond

This 1.37ct lab-grown cushion sits in the one-and-a-quarter to one-and-a-half carat band, graded D colour (colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG523282964 or 523282964. Listed at 12 retailers as of October 30, 2026, with prices from $251 to $2,150, a $1,899 spread on the same certified stone. Do Amore Diamonds lists it at $2,150. 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

1.37
Carat
D
Colour
SI1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle33.2°
Pavilion angle40°
OriginLab Grown
Grading LabIGI
CertificateIGI LG523282964
Dimensions6.59 × 6.38 × 4.30 mm
L/W Ratio1.03
Girdle conditionFaceted
Culet sizePointed
Cert comments
As Grown - No indication of post-growth treatment This Laboratory Grown Diamond was created by High Pressure High Temperature (HPHT) growth process Type II
Top View
6.59 mm6.38 mm1.37 ctD / SI1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG523282964
Side View
Table 60.5%Crown 33.2°Girdle: STK-THKPavilion 40°Culet: NoneDepth 67.4%

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: Oct 30
Current: $508 AUD|Low: $251 AUD|High: $2,264 AUD|Avg: $847 AUD|+2.1%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
October 31, 2026
Retailer 7$251 AUD
Retailer 9$374 AUD
Retailer 1$508 AUD
Retailer 2$548 AUD
Retailer 8$750 AUD
Retailer 6$1,183 AUD
Retailer 3$1,210 AUD
Retailer 5$1,210 AUD
Retailer 4$1,441 AUD

42 data points across 9 retailers

12 retailers$251 AUD to $2,150 AUD

A
Cheapest Retailer
-
$251 AUD
$176 USD
Final sale: no returns
B+
Retailer 2
-
$374 AUD
$263 USD
View
A
Retailer 3
-
$508 AUD
€340 EUR
View
A
Retailer 4
-
$548 AUD
£303 GBP
View
A
Retailer 5
-
$618 AUD
$434 USD
View
B+
Retailer 6
-
$750 AUD
$527 USD
View
B+
Retailer 7
-
$1,081 AUD
$760 USD
View
B+
Retailer 8
-
$1,183 AUD
$831 USD
View
B+
Retailer 9
-
$1,210 AUD
$850 USD
View
Retailer 10
-
$1,210 AUD
$850 USD
View
Price last confirmed 10 days ago
B
Retailer 11
-
$1,441 AUD
£797 GBP
View
Most Expensive
B
Do Amore Diamonds
27-735A00FF9 · Oct 31
$2,150 AUD
$1,510 USD
View
11 more retailers have this diamond
Prices start from $251 AUDSave up to $1,899 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
1.37ct Cushion
$251 AUD