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Cushion|Lab Grown|IGI

0.99ct D IF Cushion Lab Grown Diamond

ID • D/IF • IGI LG662438887

Shape and cutting style on the report: Cushion brilliant

Certificate IGI LG662438887

Diamond specifications and retailer prices

From $538 AUD
$377 USD
As of November 1, 2026
Save $1,902 AUD (78%) vs most expensive(unlock to see where)
19 retailers carry this diamond
Most expensive: $2,440 AUD at Brilliant Earth · As of October 31, 2026
View at Brilliant Earth

About this 0.99ct lab-grown cushion diamond

This 0.99ct lab-grown cushion sits in the just-under-one-carat band, graded D colour (colourless) and IF clarity (flawless or internally-flawless), with a top-tier cut grade and certified by IGI LG662438887 or 662438887. Listed at 19 retailers as of October 31, 2026, with prices from $538 to $2,440, a $1,902 spread on the same certified stone. Brilliant Earth lists it at $2,440. Flawless clarity in sub-one-carat stones is rarely visible to the naked eye over VS1, so you are paying a meaningful premium for grade rather than appearance.

The 4Cs

0.99
Carat
D
Colour
IF
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle35°
Pavilion angle34.8°
OriginLab Grown
Grading LabIGI
CertificateIGI LG662438887
Dimensions6.99 × 5.37 × 3.51 mm
L/W Ratio1.30
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
6.99 mm5.37 mm0.99 ctD / IF
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG662438887
Side View
Table 61.0%Crown 35°Girdle: MED-THKPavilion 34.8°Culet: NoneDepth 65.4%

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: $2,440 AUD|Low: $534 AUD|High: $2,469 AUD|Avg: $1,434 AUD|-1.2%
Brilliant Earth
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
Retailer 13
Retailer 14
Retailer 15
Retailer 16
November 2, 2026
Retailer 13$538 AUD
Retailer 3$596 AUD
Retailer 16$933 AUD
Retailer 15$950 AUD
Retailer 5$963 AUD
Retailer 12$989 AUD
Retailer 9$1,062 AUD
Retailer 2$1,084 AUD
Retailer 14$1,482 AUD
Retailer 4$1,554 AUD
Retailer 8$1,765 AUD
Retailer 10$1,784 AUD
Retailer 7$1,981 AUD
Retailer 6$2,329 AUD
Retailer 11$2,392 AUD
Brilliant Earth$2,440 AUD

35 data points across 16 retailers

19 retailers$538 AUD to $2,440 AUD

A
Cheapest Retailer
-
$538 AUD
$377 USD
Final sale: no returns
Retailer 2
-
$596 AUD
$418 USD
View
Price last confirmed 8 days ago
A
Retailer 3
-
$933 AUD
$654 USD
View
A
Retailer 4
-
$950 AUD
$666 USD
View
A
Retailer 5
-
$963 AUD
$675 USD
View
A
Retailer 6
-
$989 AUD
€660 EUR
View
A
Retailer 7
-
$1,062 AUD
£586 GBP
View
A
Retailer 8
-
$1,084 AUD
ZAR 12,270 ZAR
View
A
Retailer 9
-
$1,482 AUD
View
B+
Retailer 10
-
$1,554 AUD
$1,089 USD
View
Retailer 11
-
$1,765 AUD
View
Price last confirmed 25 days ago
B+
Retailer 12
-
$1,784 AUD
$1,250 USD
View
B+
Retailer 13
-
$1,905 AUD
$1,335 USD
View
B+
Retailer 14
-
$1,905 AUD
$1,335 USD
View
B+
Retailer 15
-
$1,981 AUD
$1,388 USD
View
B+
Retailer 16
-
$2,266 AUD
$1,588 USD
View
B
Retailer 17
-
$2,329 AUD
$1,632 USD
View
B+
Retailer 18
-
$2,392 AUD
£1,320 GBP
View
Most Expensive
B+
Brilliant Earth
14718846A · Oct 31
$2,440 AUD
$1,710 USD
View
18 more retailers have this diamond
Prices start from $538 AUDSave up to $1,902 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
0.99ct Cushion
$538 AUD