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Cushion|Lab Grown|IGI

0.90ct D SI1 Cushion Lab Grown Diamond

ID • D/SI1 • IGI LG576315470

Shape and cutting style on the report: Cushion brilliant

Certificate IGI LG576315470

Diamond specifications and retailer prices

From $255 AUD
HK$1,400 HKD
As of November 1, 2026
Save $485 AUD (66%) vs most expensive(unlock to see where)
2 retailers carry this diamond
Most expensive: $740 AUD at Rare Carat · As of November 1, 2026
View at Rare Carat

About this 0.9ct lab-grown cushion diamond

This 0.9ct lab-grown cushion sits in the just-under-one-carat band, graded D colour (colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG576315470 or 576315470. Listed at 2 retailers as of November 1, 2026, with prices from $255 to $740, a $485 spread on the same certified stone. Rare Carat lists it at $740. 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

0.90
Carat
D
Colour
SI1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle36.9°
Pavilion angle36.1°
OriginLab Grown
Grading LabIGI
CertificateIGI LG576315470
Dimensions6.30 × 5.08 × 3.54 mm
L/W Ratio1.24
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
6.30 mm5.08 mm0.90 ctD / SI1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG576315470
Side View
Table 68.0%Crown 36.9°Girdle: MED-THKPavilion 36.1°Culet: NoneDepth 69.7%

Caratlytics Score

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A
Excellent
Excellent quality and great value
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Price History

Last verified: Nov 1
Current: $740 AUD|Low: $255 AUD|High: $1,239 AUD|Avg: $619 AUD|-2.8%
Rare Carat
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
October 19, 2026
Retailer 11$255 AUD
Retailer 8$360 AUD
Retailer 5$377 AUD
Retailer 2$437 AUD
Retailer 7$484 AUD
Retailer 10$625 AUD
Retailer 9$641 AUD
Retailer 6$728 AUD
Rare Carat$740 AUD
Retailer 3$909 AUD
Retailer 4$1,239 AUD

3 data points across 11 retailers

2 retailers$255 AUD to $740 AUD

A
Cheapest Retailer
-
$255 AUD
HK$1,400 HKD
Most Expensive
B+
Rare Carat
AG-368 · Nov 1
$740 AUD
$520 USD
View
1 more retailer has this diamond
Prices start from $255 AUDSave up to $485 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
0.90ct Cushion
$255 AUD