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Cushion|Lab Grown|IGI

1.17ct D IF Cushion Lab Grown Diamond

VG • D/IF • IGI LG830620366

Shape and cutting style on the report: Cushion modified brilliant

Certificate IGI LG830620366

Diamond specifications and retailer prices

From $497 AUD
As of November 4, 2026
Save $2,154 AUD (81%) vs most expensive(unlock to see where)
16 retailers carry this diamond
Most expensive: $2,651 AUD at Helzberg Diamonds · As of November 4, 2026
View at Helzberg Diamonds

About this 1.17ct lab-grown cushion diamond

This 1.17ct lab-grown cushion sits in the classic one-carat band, graded D colour (colourless) and IF clarity (flawless or internally-flawless), with a very-good cut grade and certified by IGI LG830620366 or 830620366. Listed at 16 retailers as of November 4, 2026, with prices from $497 to $2,651, a $2,154 spread on the same certified stone. Helzberg Diamonds lists it at $2,651. Cut grade matters more than carat or clarity for visible brilliance. If you can shift budget toward an Excellent or Ideal cut, do it before chasing higher colour or clarity.

The 4Cs

1.17
Carat
D
Colour
IF
Clarity
Very Good
Cut

Specifications

CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle34.5°
Pavilion angle34.6°
OriginLab Grown
Grading LabIGI
CertificateIGI LG830620366
Dimensions7.90 × 5.26 × 3.49 mm
L/W Ratio1.50
Girdle conditionFaceted
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
7.90 mm5.26 mm1.17 ctD / IF
OriginLab Grown
CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG830620366
Side View
Table 61.0%Crown 34.5°Girdle: STK-THKPavilion 34.6°Culet: NoneDepth 66.3%

Caratlytics Score

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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: Nov 4
Current: $2,651 AUD|Low: $497 AUD|High: $2,651 AUD|Avg: $1,328 AUD
Helzberg Diamonds
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
November 5, 2026
Retailer 6$497 AUD
Retailer 9$564 AUD
Retailer 8$771 AUD
Retailer 15$836 AUD
Retailer 14$893 AUD
Retailer 4$894 AUD
Retailer 12$949 AUD
Retailer 5$1,066 AUD
Retailer 10$1,353 AUD
Retailer 11$1,369 AUD
Retailer 2$1,420 AUD
Retailer 7$1,834 AUD
Retailer 13$2,204 AUD
Retailer 3$2,500 AUD
Helzberg Diamonds$2,651 AUD

11 data points across 15 retailers

16 retailers$497 AUD to $2,651 AUD

A
Cheapest Retailer
-
$497 AUD
Final sale: no returns
A
Retailer 2
-
$564 AUD
View
A
Retailer 3
-
$771 AUD
View
A
Retailer 4
-
$836 AUD
View
A
Retailer 5
-
$893 AUD
View
A
Retailer 6
-
$894 AUD
View
A
Retailer 7
-
$949 AUD
View
A
Retailer 8
-
$1,066 AUD
View
B+
Retailer 9
-
$1,353 AUD
View
B+
Retailer 10
-
$1,369 AUD
View
B+
Retailer 11
-
$1,420 AUD
View
B+
Retailer 12
-
$1,834 AUD
View
B
Retailer 13
-
$2,204 AUD
View
B
Retailer 14
-
$2,328 AUD
View
B
Retailer 15
-
$2,500 AUD
View
Most Expensive
B
Helzberg Diamonds
ZXZOJGMIGJMM · Nov 4
$2,651 AUD
$1,856 USD
View
15 more retailers have this diamond
Prices start from $497 AUDSave up to $2,154 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
1.17ct Cushion
$497 AUD